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Paragon Knife Oven KM18 - Heat Treating Furnace - front view

Paragon Knife Oven KM18 - Heat Treating Furnace

by Paragon
Save $200.00
$4,132.00
$3,932.00
🚚
Free Freight Delivery Included
✓ No sales tax outside GA ✓ Liftgate included free ✓ Authorized dealer
🔨
Made to Order: Smaller models typically ship in 2–4 weeks. Larger kilns may take up to 12 weeks. We confirm your estimate after ordering.
Questions? Call or text us at (470) 264-3563
Color: Blue

Notify me when back in stock

  1. 1 We submit your kiln order for production with the manufacturer.
  2. 2 We confirm the current estimated lead time and keep you updated.
  3. 3 Your kiln is built to your specifications and prepared for freight shipment.
  4. 4 We send tracking and delivery instructions once your kiln ships.
Paragon · Heat Treating Furnace · Front-Loading Knife Oven Paragon Knife Oven KM18 KM18 · 120V or 240V · 18" Chamber Depth · Large Capacity · 2350°F Max Professional 18-inch deep front-loading heat treating furnace engineered specifically for knifemakers who need precise, repeatable hardening and tempering results in their own workshop. Fires to 2350°F maximum temperature, providing the ideal heat range for hardening, tempering, and annealing virtually any blade steel including high-carbon, tool steels, and stainless varieties. Chamber accommodates blades up to 18 inches long with even heat distribution for consistent edge-to-spine heat treatment.
Max Temperature2350°F (Cone 10)
Chamber Depth18" blade capacity
Voltage Options120V or 240V
ApplicationProfessional heat treating
What’s included
Digital Controller Programmable digital controller with precise temperature control for accurate heat treating cycles and ramping rates
Front-Loading Design Horizontal front door access for easy blade loading and viewing during heat treatment without heat loss
High-Temperature Elements Industrial-grade heating elements designed for consistent heat distribution and extended operational life at high temperatures
Insulated Brick Chamber Heavy-duty refractory brick insulation maintains even temperature throughout the 18-inch chamber depth for uniform heat treatment
Dual Voltage Capability Configurable for either 120V or 240V operation to match your workshop electrical setup
Precision Thermocouple Accurate temperature sensing for reliable heat treating results across the entire temperature range
Technical specifications
ModelKM18
Chamber Depth18 inches
Maximum Temperature2350°F (Cone 10)
Voltage Options120V or 240V (specify at order)
Firing TypeElectric heat treating furnace
Loading StyleFront-loading horizontal chamber
Controller TypeDigital programmable controller
Blade CapacityUp to 18 inches long
InsulationHigh-temperature refractory brick
ApplicationHardening, tempering, annealing blade steels
Steel CompatibilityHigh-carbon, tool steels, stainless varieties
Warranty: One-year limited warranty from Paragon Industries. Must be registered within 30 days of delivery. Valid only through authorized dealers like Peach State Pottery.
Optional accessories
Gas Inlet Port Allows introduction of protective atmosphere gases during heat treating to prevent oxidation and decarburization on critical blades
Extra Thermocouple Backup Type K or Type S thermocouple for replacement or temperature verification across different chamber zones
Stainless Steel Tray Set Heat-resistant trays for organizing multiple blades during batch heat treating operations
Quench Tank System Dedicated quenching station with oil or brine tank for controlled cooling immediately after hardening cycle
Heat-Resistant Tongs Long-handled tongs designed for safely transferring hot blades from furnace to quench tank
Emergency Parts Kit Replacement elements, relay, thermocouple, and critical components to minimize downtime in professional shops
Controller upgrade
Genesis Touchscreen — Bartlett InstrumentsRecommended
Upgrade to Bartlett's Genesis touchscreen controller for intuitive programming, data logging, and advanced heat treating profiles with multi-segment ramp/hold capabilities perfect for complex knife steel recipes.
  • 7-inch full-color touchscreen with icon-based menu navigation
  • Store up to 100 custom heat treating programs with multi-segment ramp and soak profiles
  • Automatic temperature logging and firing history with USB export capability
  • Real-time graphing of temperature curves during hardening and tempering cycles
  • Alarm notifications for over-temperature, thermocouple failure, and program completion
  • Delay start timer and automatic shutoff for unattended operation
Common questions
What types of blade steels can I heat treat in the KM18?
The KM18 reaches 2350°F, which covers virtually all common knife steels including high-carbon steels (1095, 1084, 5160), tool steels (O1, A2, D2), and many stainless varieties (440C, AEB-L, 154CM). The 18-inch chamber depth accommodates everything from pocket knife blades to full-size chef's knives and machetes. For extremely high-alloy powder metallurgy steels requiring temperatures above 2100°F, verify your specific steel's heat treating requirements against the maximum 2350°F rating.
Do I need a gas inlet port for atmosphere control?
The gas inlet port is optional but recommended for professional knifemakers concerned about surface oxidation and decarburization. It allows you to introduce nitrogen, argon, or other protective atmosphere gases during the hardening cycle, which is especially important for stainless steels and when you want to minimize post-heat-treat grinding. For basic heat treating of high-carbon steels where you'll grind the blade afterward, the standard configuration without atmosphere control works perfectly fine.
What controller comes standard with the KM18?
The KM18 includes a digital programmable controller as standard equipment with adjustable temperature settings and basic ramp/hold programming. This controller provides accurate temperature control for straightforward hardening and tempering cycles. For advanced knifemakers who want multi-segment programs, data logging, and touchscreen operation, the Genesis controller upgrade is available and provides significantly more programming flexibility for complex heat treating recipes.
How does the KM18 compare to smaller knife ovens?
The KM18's 18-inch chamber depth is the key differentiator—it handles full-size blades that won't fit in 12-inch or 14-inch models. If you're making large bowies, swords, machetes, or chef's knives over 14 inches, the KM18 is necessary. For makers focused on folders, small fixed blades, or EDC knives under 12 inches, a smaller model may be more economical and heat up faster. The KM18 also accommodates batch processing of multiple smaller blades simultaneously.
Is this kiln covered under warranty if I buy from Peach State Pottery?
Yes. Peach State Pottery is an authorized Paragon dealer, which means your KM18 is covered by Paragon's full one-year limited warranty on parts and workmanship. You must register the furnace within 30 days of delivery directly with Paragon. Purchasing from an unauthorized dealer voids the manufacturer warranty, so always verify dealer authorization before buying heat treating equipment.
Not sure if the KM18 is the right furnace for your blades? Our team can help you compare chamber sizes, discuss your steel types, and recommend the right heat treating setup for your knifemaking operation.
Talk to an expert →
About this kiln
Best for: Glass artists, ceramic hobbyists, and specialty firing applications where precise temperature control and compact American-made construction matter most.
🔨
Lead time
2–12 weeks
Smaller models typically ship in 2–4 weeks. Larger kilns may take up to 12 weeks. We confirm your estimate after ordering.
✓
Warranty
Manufacturer warranty included
Full coverage. We are here if anything goes wrong after your order.
Why buy from Peach State Pottery?
★ Authorized Paragon Dealer
★ No sales tax outside Georgia
★ Free shipping included
★ Real support before & after order
★ Military discount for veterans
★ We are here if anything goes wrong
Call or text us:✆ (470) 264-3563
⏱
Paragon production slots fill fast
Placing your order now locks in your position in the build queue and secures today's pricing. Lead times can shift during high-demand periods.
✆ Call or text us ✉ Save 3% — pay by wire transfer
Description
Paragon · Heat Treating Furnace · Front-Loading Knife Oven Paragon Knife Oven KM18 KM18 · 120V or 240V · 18" Chamber Depth · Large Capacity · 2350°F Max Professional 18-inch deep front-loading heat treating furnace engineered specifically for knifemakers who need precise, repeatable hardening and tempering results in their own workshop. Fires to 2350°F maximum temperature, providing the ideal heat range for hardening, tempering, and annealing virtually any blade steel including high-carbon, tool steels, and stainless varieties. Chamber accommodates blades up to 18 inches long with even heat distribution for consistent edge-to-spine heat treatment. Max Temperature2350°F (Cone 10) Chamber Depth18" blade capacity Voltage Options120V or 240V ApplicationProfessional heat treating What’s included Digital Controller Programmable digital controller with precise temperature control for accurate heat treating cycles and ramping rates Front-Loading Design Horizontal front door access for easy blade loading and viewing during heat treatment without heat loss High-Temperature Elements Industrial-grade heating elements designed for consistent heat distribution and extended operational life at high temperatures Insulated Brick Chamber Heavy-duty refractory brick insulation maintains even temperature throughout the 18-inch chamber depth for uniform heat treatment Dual Voltage Capability Configurable for either 120V or 240V operation to match your workshop electrical setup Precision Thermocouple Accurate temperature sensing for reliable heat treating results across the entire temperature range Technical specifications ModelKM18 Chamber Depth18 inches Maximum Temperature2350°F (Cone 10) Voltage Options120V or 240V (specify at order) Firing TypeElectric heat treating furnace Loading StyleFront-loading horizontal chamber Controller TypeDigital programmable controller Blade CapacityUp to 18 inches long InsulationHigh-temperature refractory brick ApplicationHardening, tempering, annealing blade steels Steel CompatibilityHigh-carbon, tool steels, stainless varieties Warranty: One-year limited warranty from Paragon Industries. Must be registered within 30 days of delivery. Valid only through authorized dealers like Peach State Pottery. Optional accessories Gas Inlet Port Allows introduction of protective atmosphere gases during heat treating to prevent oxidation and decarburization on critical blades Extra Thermocouple Backup Type K or Type S thermocouple for replacement or temperature verification across different chamber zones Stainless Steel Tray Set Heat-resistant trays for organizing multiple blades during batch heat treating operations Quench Tank System Dedicated quenching station with oil or brine tank for controlled cooling immediately after hardening cycle Heat-Resistant Tongs Long-handled tongs designed for safely transferring hot blades from furnace to quench tank Emergency Parts Kit Replacement elements, relay, thermocouple, and critical components to minimize downtime in professional shops Controller upgrade Genesis Touchscreen — Bartlett InstrumentsRecommended Upgrade to Bartlett's Genesis touchscreen controller for intuitive programming, data logging, and advanced heat treating profiles with multi-segment ramp/hold capabilities perfect for complex knife steel recipes.
  • 7-inch full-color touchscreen with icon-based menu navigation
  • Store up to 100 custom heat treating programs with multi-segment ramp and soak profiles
  • Automatic temperature logging and firing history with USB export capability
  • Real-time graphing of temperature curves during hardening and tempering cycles
  • Alarm notifications for over-temperature, thermocouple failure, and program completion
  • Delay start timer and automatic shutoff for unattended operation
 Common questions What types of blade steels can I heat treat in the KM18? The KM18 reaches 2350°F, which covers virtually all common knife steels including high-carbon steels (1095, 1084, 5160), tool steels (O1, A2, D2), and many stainless varieties (440C, AEB-L, 154CM). The 18-inch chamber depth accommodates everything from pocket knife blades to full-size chef's knives and machetes. For extremely high-alloy powder metallurgy steels requiring temperatures above 2100°F, verify your specific steel's heat treating requirements against the maximum 2350°F rating. Do I need a gas inlet port for atmosphere control? The gas inlet port is optional but recommended for professional knifemakers concerned about surface oxidation and decarburization. It allows you to introduce nitrogen, argon, or other protective atmosphere gases during the hardening cycle, which is especially important for stainless steels and when you want to minimize post-heat-treat grinding. For basic heat treating of high-carbon steels where you'll grind the blade afterward, the standard configuration without atmosphere control works perfectly fine. What controller comes standard with the KM18? The KM18 includes a digital programmable controller as standard equipment with adjustable temperature settings and basic ramp/hold programming. This controller provides accurate temperature control for straightforward hardening and tempering cycles. For advanced knifemakers who want multi-segment programs, data logging, and touchscreen operation, the Genesis controller upgrade is available and provides significantly more programming flexibility for complex heat treating recipes. How does the KM18 compare to smaller knife ovens? The KM18's 18-inch chamber depth is the key differentiator—it handles full-size blades that won't fit in 12-inch or 14-inch models. If you're making large bowies, swords, machetes, or chef's knives over 14 inches, the KM18 is necessary. For makers focused on folders, small fixed blades, or EDC knives under 12 inches, a smaller model may be more economical and heat up faster. The KM18 also accommodates batch processing of multiple smaller blades simultaneously. Is this kiln covered under warranty if I buy from Peach State Pottery? Yes. Peach State Pottery is an authorized Paragon dealer, which means your KM18 is covered by Paragon's full one-year limited warranty on parts and workmanship. You must register the furnace within 30 days of delivery directly with Paragon. Purchasing from an unauthorized dealer voids the manufacturer warranty, so always verify dealer authorization before buying heat treating equipment. Not sure if the KM18 is the right furnace for your blades? Our team can help you compare chamber sizes, discuss your steel types, and recommend the right heat treating setup for your knifemaking operation. Talk to an expert →
Shipping/Returns

Paragon Kilns Shipping & Returns

At Peach State Pottery, we want your Paragon kiln delivery experience to be as smooth and stress-free as possible. Paragon ships thousands of units each year, with only a small percentage experiencing freight issues. Understanding how freight delivery works will help ensure your kiln arrives safely and that you are prepared when it arrives.

Because many Paragon kilns are heavy, fragile, and shipped by freight carrier, it is important to understand the delivery process before your order arrives.

Shipping & Delivery

Small Paragon Kilns

Smaller Paragon kilns are generally shipped by FedEx or UPS, making delivery simple and convenient.

For your protection, Paragon requires a signature upon delivery. This gives you a moment to inspect the package before accepting it and helps ensure any visible issues are addressed right away.

Medium & Large Paragon Kilns

Medium and large Paragon kilns are delivered by commercial freight to the curbside or front of your driveway.

Standard freight delivery does not include:

  • Uncrating
  • Carrying the kiln inside
  • Placement in your studio, garage, home, or workspace
  • Setup or installation

Residential deliveries usually require liftgate service, which must be requested at the time of order. If liftgate service is not included, the customer will need access to a forklift, loading dock, or similar equipment to unload the pallet from the truck.

Access & Delivery Challenges

Please contact us before ordering if your delivery location has possible access issues, such as:

  • Gravel or dirt roads
  • Steep driveways
  • Narrow streets
  • Low-hanging trees or low clearances
  • Limited truck access
  • Rural or hard-to-reach delivery locations

Depending on your situation, possible options may include meeting the truck nearby, picking up the kiln at the freight terminal, or requesting delivery with a smaller box truck when available.

Unloading Your Kiln

Once your kiln arrives, the customer is responsible for moving the kiln from the delivery point to its final location unless a separate moving or installation service has been arranged.

Hire a Local Moving or Package-Handling Service

Many customers choose to hire a local moving or package-handling service experienced with heavy equipment. These teams can help off-load the crate and move the kiln into your workspace for an additional fee.

This option is especially helpful for larger kilns, tight spaces, or customers who do not have the proper unloading equipment available.

Unload the Kiln Yourself

If you prefer to handle unloading yourself, make sure you have the proper equipment and enough help available. Depending on the kiln size and weight, this may require a pallet jack, dolly, forklift, loading dock, or similar equipment.

Planning ahead before delivery helps make the unloading process safer and smoother.

Inspecting Your Shipment

All Paragon shipments are FOB origin, meaning ownership transfers when the kiln leaves Paragon’s facility. Inspection upon delivery is essential.

Please inspect your shipment carefully before signing for delivery.

If There Is Minor Visible Damage

  • Note the damage on the delivery paperwork before signing.
  • Take clear photos of the packaging and any visible damage.
  • Accept the shipment if the damage appears minor.
  • Inspect the kiln immediately after unpacking.
  • Contact Peach State Pottery as soon as possible.

If There Is Severe Visible Damage

  • Refuse the shipment if the damage appears severe.
  • Take detailed photos before refusal.
  • Contact Peach State Pottery right away.

If You Discover Concealed Damage

Concealed damage is damage discovered after the kiln has been unpacked.

  • Notify the carrier and Peach State Pottery as soon as possible.
  • Keep all packaging materials.
  • Take detailed photos and/or video.
  • Report the issue within 5 days of delivery.

Photo & Video Documentation

Before opening the crate or box, take clear photos or video of the packaging from all sides.

Continue documenting as you unpack, especially if you notice broken crate boards, crushed packaging, holes in the box, visible impact marks, or any visible damage to the kiln or accessories.

This documentation is essential to help support a freight claim if damage is discovered.

If a claim is needed, documentation may include the carrier’s claim form, bill of lading, Paragon invoice, freight bill, inspection report, photos, videos, and repair estimate.

Returns & Exchanges

Paragon kilns are specialty products, and many models may be made to order, custom, or freight-shipped. Please review the return policy carefully before purchasing.

Return Eligibility

To be eligible for a non-warranty return:

  • The return or replacement request must be initiated within 30 days of the delivery date.
  • The kiln must be unused.
  • The kiln must be in original condition.
  • The kiln must be returned in its original packaging.
  • A Return Merchandise Authorization, or RMA, must be approved before the kiln is shipped back.

Please do not ship any kiln back without first receiving return authorization.

Restocking Fee

Non-warranty returns are subject to a 25% restocking fee.

Original shipping costs are not credited or refunded. Return shipping is the customer’s responsibility unless otherwise stated under an approved warranty claim.

Return Process

To start a return, contact Peach State Pottery with your order information and reason for return. We will help coordinate the next steps.

  1. Request return authorization.
  2. Wait for RMA approval before shipping anything back.
  3. Repackage the kiln carefully in its original packaging.
  4. Ship the kiln prepaid and insured to the designated return address.
  5. The kiln will be inspected after arrival to confirm it is in acceptable condition.
  6. If approved, your refund or credit will be processed.

Refund approval depends on the kiln arriving unused, in original condition, and properly packaged.

Custom & Special-Order Products

Custom or special-order Paragon kilns are not eligible for return unless covered by an approved warranty claim.

Refunds

Once your return is received and inspected, you will be notified whether your refund has been approved or rejected.

If approved, the refund will be issued back to the original payment method. Please allow time for your bank or credit card company to process the refund after it has been issued.

Late or Missing Refunds

If your refund has been approved but has not appeared yet, please check your bank or credit card statement, contact your card issuer or bank, and then contact Peach State Pottery if you still need help.

Sale, Promotional, and Scratch & Dent Items

Only regular-priced items may be eligible for refund.

Sale items, promotional products, and Scratch & Dent products are not refundable.

Exchanges

Exchanges are only available for items that are defective or damaged. If your kiln arrives damaged or you believe there is a defect, contact Peach State Pottery as soon as possible so we can help determine the next step.

Need Help?

If you have questions before ordering, during delivery, or after your Paragon kiln arrives, please contact Peach State Pottery. We are happy to help you understand shipping options, delivery requirements, liftgate needs, damage claims, returns, and exchanges.

Email: sales@peachstatepottery.com
Phone: 470-264-3563

Why Buy From Us?

Why Shop with Peach State Pottery?

We’re passionate about helping potters succeed — from hobbyists to professionals. Here’s why makers choose us:

  • Expert Guidance — Our team helps you choose the right kiln for your space, power, and firing needs.
  • Transparent Pricing & Free Shipping — What you see is what you pay. Free standard shipping to the contiguous U.S. with no hidden fees.
  • Flexible Policies — Generous returns, including the manufacturer’s recommended first test firing.
  • Dedicated Support — Real people ready to assist with lead times, delivery, troubleshooting, and warranty questions.
  • Built to Last — We focus on quality equipment that supports your long-term pottery journey.

Warranty & Product Support

We stand behind every kiln and piece of equipment we sell. Most products include the manufacturer’s standard warranty covering defects in materials and workmanship.

If you receive a damaged or defective item, note it at delivery and email clear photos to sales@peachstatepottery.com the same day. We’ll handle replacement or repair at no cost to you and cover return shipping for approved claims.

Please retain all original packaging until the issue is resolved.

Manufacturer’s Recommended First Firing is allowed without affecting your return eligibility, as long as the kiln is returned in excellent, like-new condition with all original parts and packaging.

Have questions? Reach out anytime at sales@peachstatepottery.com.

Warranty

Paragon Kilns Warranty

Paragon kilns are warranted by Paragon Industries, L.P. to the original purchaser against defects in workmanship, subject to the warranty periods and exclusions listed below. The warranty period begins from the date the kiln ships from the Paragon factory, unless the original purchase date from an authorized Paragon distributor or dealer can be established.

This warranty is provided by Paragon Industries, L.P. Peach State Pottery is here to help customers understand warranty coverage and assist with the process if warranty service is needed.

Warranty Periods

Warranty coverage varies by kiln model, series, controller, and component type.

Product / Component Warranty Period
QuickFire kilns 3 months
BlueBirds, HT-Series, Home Artist, FiberFuse-16, J-Series, KM-Series, SC-Series, and Vulcan kilns 1 year
Vulcan elements Not warranted
Kilns rated above 2300°F, except Dragon, Iguana, and Viking models 1 year
TNF 2 portable control boxes 2 years
GF, GL, and Fusion series kilns rated 2000°F or lower 2 years
Other kilns not listed above with a maximum temperature rating of 2300°F or lower 2 years
Sentry 12-key controller 2 1/2 years
Sentry Xpress 3-key controller on a new kiln Length of the new kiln warranty
Sentry Xpress 3-key replacement controller for older kilns 1 year
Sentinel SmartTouch controller 2 1/2 years
Sentinel TouchXpress controller 2 1/2 years
Dragon, Super Dragon, Iguana, and Viking kilns 2 years
S-Type thermocouple and APM elements on Dragon, Super Dragon, Iguana, and Viking models 2 years
Standard elements on Dragon, Super Dragon, Iguana, and Viking models 6 months
Sentry controller on Dragon, Super Dragon, Iguana, and Viking models 2 1/2 years
Type-K thermocouple on Dragon, Iguana, and Viking models Not warranted

These warranty periods apply unless otherwise agreed to in writing by Paragon Industries, L.P.

What the Warranty Covers

During the applicable warranty period, Paragon Industries, L.P. will repair or replace parts that become defective under normal and proper use, provided the kiln has not been subjected to misuse, improper installation, freight damage, modification, or any of the exclusions listed in this policy.

At Paragon’s discretion, warranty service may be handled in one of the following ways:

  • Paragon may furnish and install replacement parts at the factory, with transportation costs to and from the factory paid by the owner.
  • Paragon may request that defective parts be returned to the factory for examination.
  • After factory review, Paragon may provide replacement parts with installation instructions, shipped postpaid to the owner.

The warranty on repaired or replaced parts is limited to the remaining, unexpired portion of the original warranty period.

Warranty Exclusions

The Paragon warranty does not cover damage or issues caused by:

  • Overfiring, including firing beyond the melting temperature of the material being fired, regardless of the cause.
  • Damage to ware, tools, kiln furniture, or anything inside the kiln caused by overfiring.
  • Allowing the kiln to exceed the maximum temperature shown on the kiln’s nameplate.
  • Abuse, neglect, freight damage, or improper storage.
  • Reduction firing or salt firing.
  • Improper electrical installation.
  • Using the kiln for purposes other than ceramics, glass, heat treating, or the purpose for which the kiln was intended.
  • Element burnout caused by contact with foreign materials.
  • The patented Dawson Kiln Sitter and/or Limit Timer manufactured by W.P. Dawson, Inc.

Original Purchaser Only

Warranty coverage applies only to the original purchaser. It does not transfer to future owners.

This warranty also does not cover replacement of parts that are considered expendable by nature.

Modifications & Unauthorized Changes

The warranty may be voided if the kiln is altered, modified, tampered with, or adversely affected by attaching any feature, device, or accessory without express written permission from Paragon Industries, L.P.

Freight Damage Is Not Warranty Damage

Damage caused during shipping or freight delivery is not treated as a warranty defect. Freight damage must be documented at delivery and handled through the freight claim process.

Please inspect your shipment carefully before signing for delivery, take photos or video before unpacking, and report visible or concealed damage as quickly as possible.

How to Start a Warranty Claim

If you believe your Paragon kiln has a warranty-related issue, contact Peach State Pottery with your order information and a clear description of the issue. We will help review the situation and assist with the next steps.

A warranty claim should include:

  • Your name and contact information
  • Your order number or proof of purchase
  • The kiln model and serial number, if available
  • A description of the issue
  • Photos or videos showing the problem
  • The name and address of the dealer from whom the kiln was originally purchased

Any claim for warranty adjustment must include the name and address of the dealer from whom the kiln was originally purchased.

Limits of Warranty Coverage

Repair or replacement of defective parts fulfills Paragon’s warranty obligations. No other obligations or liabilities are assumed in connection with Paragon kilns, and Paragon does not authorize distributors or dealers to assume additional obligations or liabilities on its behalf.

There are no other warranties expressed or implied, including implied warranties of merchantability or fitness for a particular purpose. Paragon Industries, L.P. is not liable for loss of profits or indirect or consequential damages arising from defects in material or workmanship. Some states do not allow the exclusion or limitation of incidental or consequential damages, so these limitations may not apply to every customer.

Governing Law

This warranty agreement is made in the State of Texas. Its validity, construction, and all rights under it are governed by the laws of the State of Texas.

This warranty gives you specific legal rights. You may also have other rights, which vary from state to state.

Need Help?

If you have questions about your Paragon kiln warranty, need help identifying your warranty period, or believe your kiln may need warranty service, please contact Peach State Pottery. We are happy to help guide you through the process.

Manuals

Visit this link to view all of Paragon's Kiln Manuals



CLICK HERE

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Description
Paragon · Heat Treating Furnace · Front-Loading Knife Oven Paragon Knife Oven KM18 KM18 · 120V or 240V · 18" Chamber Depth · Large Capacity · 2350°F Max Professional 18-inch deep front-loading heat treating furnace engineered specifically for knifemakers who need precise, repeatable hardening and tempering results in their own workshop. Fires to 2350°F maximum temperature, providing the ideal heat range for hardening, tempering, and annealing virtually any blade steel including high-carbon, tool steels, and stainless varieties. Chamber accommodates blades up to 18 inches long with even heat distribution for consistent edge-to-spine heat treatment. Max Temperature2350°F (Cone 10) Chamber Depth18" blade capacity Voltage Options120V or 240V ApplicationProfessional heat treating What’s included Digital Controller Programmable digital controller with precise temperature control for accurate heat treating cycles and ramping rates Front-Loading Design Horizontal front door access for easy blade loading and viewing during heat treatment without heat loss High-Temperature Elements Industrial-grade heating elements designed for consistent heat distribution and extended operational life at high temperatures Insulated Brick Chamber Heavy-duty refractory brick insulation maintains even temperature throughout the 18-inch chamber depth for uniform heat treatment Dual Voltage Capability Configurable for either 120V or 240V operation to match your workshop electrical setup Precision Thermocouple Accurate temperature sensing for reliable heat treating results across the entire temperature range Technical specifications ModelKM18 Chamber Depth18 inches Maximum Temperature2350°F (Cone 10) Voltage Options120V or 240V (specify at order) Firing TypeElectric heat treating furnace Loading StyleFront-loading horizontal chamber Controller TypeDigital programmable controller Blade CapacityUp to 18 inches long InsulationHigh-temperature refractory brick ApplicationHardening, tempering, annealing blade steels Steel CompatibilityHigh-carbon, tool steels, stainless varieties Warranty: One-year limited warranty from Paragon Industries. Must be registered within 30 days of delivery. Valid only through authorized dealers like Peach State Pottery. Optional accessories Gas Inlet Port Allows introduction of protective atmosphere gases during heat treating to prevent oxidation and decarburization on critical blades Extra Thermocouple Backup Type K or Type S thermocouple for replacement or temperature verification across different chamber zones Stainless Steel Tray Set Heat-resistant trays for organizing multiple blades during batch heat treating operations Quench Tank System Dedicated quenching station with oil or brine tank for controlled cooling immediately after hardening cycle Heat-Resistant Tongs Long-handled tongs designed for safely transferring hot blades from furnace to quench tank Emergency Parts Kit Replacement elements, relay, thermocouple, and critical components to minimize downtime in professional shops Controller upgrade Genesis Touchscreen — Bartlett InstrumentsRecommended Upgrade to Bartlett's Genesis touchscreen controller for intuitive programming, data logging, and advanced heat treating profiles with multi-segment ramp/hold capabilities perfect for complex knife steel recipes.
  • 7-inch full-color touchscreen with icon-based menu navigation
  • Store up to 100 custom heat treating programs with multi-segment ramp and soak profiles
  • Automatic temperature logging and firing history with USB export capability
  • Real-time graphing of temperature curves during hardening and tempering cycles
  • Alarm notifications for over-temperature, thermocouple failure, and program completion
  • Delay start timer and automatic shutoff for unattended operation
 Common questions What types of blade steels can I heat treat in the KM18? The KM18 reaches 2350°F, which covers virtually all common knife steels including high-carbon steels (1095, 1084, 5160), tool steels (O1, A2, D2), and many stainless varieties (440C, AEB-L, 154CM). The 18-inch chamber depth accommodates everything from pocket knife blades to full-size chef's knives and machetes. For extremely high-alloy powder metallurgy steels requiring temperatures above 2100°F, verify your specific steel's heat treating requirements against the maximum 2350°F rating. Do I need a gas inlet port for atmosphere control? The gas inlet port is optional but recommended for professional knifemakers concerned about surface oxidation and decarburization. It allows you to introduce nitrogen, argon, or other protective atmosphere gases during the hardening cycle, which is especially important for stainless steels and when you want to minimize post-heat-treat grinding. For basic heat treating of high-carbon steels where you'll grind the blade afterward, the standard configuration without atmosphere control works perfectly fine. What controller comes standard with the KM18? The KM18 includes a digital programmable controller as standard equipment with adjustable temperature settings and basic ramp/hold programming. This controller provides accurate temperature control for straightforward hardening and tempering cycles. For advanced knifemakers who want multi-segment programs, data logging, and touchscreen operation, the Genesis controller upgrade is available and provides significantly more programming flexibility for complex heat treating recipes. How does the KM18 compare to smaller knife ovens? The KM18's 18-inch chamber depth is the key differentiator—it handles full-size blades that won't fit in 12-inch or 14-inch models. If you're making large bowies, swords, machetes, or chef's knives over 14 inches, the KM18 is necessary. For makers focused on folders, small fixed blades, or EDC knives under 12 inches, a smaller model may be more economical and heat up faster. The KM18 also accommodates batch processing of multiple smaller blades simultaneously. Is this kiln covered under warranty if I buy from Peach State Pottery? Yes. Peach State Pottery is an authorized Paragon dealer, which means your KM18 is covered by Paragon's full one-year limited warranty on parts and workmanship. You must register the furnace within 30 days of delivery directly with Paragon. Purchasing from an unauthorized dealer voids the manufacturer warranty, so always verify dealer authorization before buying heat treating equipment. Not sure if the KM18 is the right furnace for your blades? Our team can help you compare chamber sizes, discuss your steel types, and recommend the right heat treating setup for your knifemaking operation. Talk to an expert →
Shipping/Returns

Paragon Kilns Shipping & Returns

At Peach State Pottery, we want your Paragon kiln delivery experience to be as smooth and stress-free as possible. Paragon ships thousands of units each year, with only a small percentage experiencing freight issues. Understanding how freight delivery works will help ensure your kiln arrives safely and that you are prepared when it arrives.

Because many Paragon kilns are heavy, fragile, and shipped by freight carrier, it is important to understand the delivery process before your order arrives.

Shipping & Delivery

Small Paragon Kilns

Smaller Paragon kilns are generally shipped by FedEx or UPS, making delivery simple and convenient.

For your protection, Paragon requires a signature upon delivery. This gives you a moment to inspect the package before accepting it and helps ensure any visible issues are addressed right away.

Medium & Large Paragon Kilns

Medium and large Paragon kilns are delivered by commercial freight to the curbside or front of your driveway.

Standard freight delivery does not include:

  • Uncrating
  • Carrying the kiln inside
  • Placement in your studio, garage, home, or workspace
  • Setup or installation

Residential deliveries usually require liftgate service, which must be requested at the time of order. If liftgate service is not included, the customer will need access to a forklift, loading dock, or similar equipment to unload the pallet from the truck.

Access & Delivery Challenges

Please contact us before ordering if your delivery location has possible access issues, such as:

  • Gravel or dirt roads
  • Steep driveways
  • Narrow streets
  • Low-hanging trees or low clearances
  • Limited truck access
  • Rural or hard-to-reach delivery locations

Depending on your situation, possible options may include meeting the truck nearby, picking up the kiln at the freight terminal, or requesting delivery with a smaller box truck when available.

Unloading Your Kiln

Once your kiln arrives, the customer is responsible for moving the kiln from the delivery point to its final location unless a separate moving or installation service has been arranged.

Hire a Local Moving or Package-Handling Service

Many customers choose to hire a local moving or package-handling service experienced with heavy equipment. These teams can help off-load the crate and move the kiln into your workspace for an additional fee.

This option is especially helpful for larger kilns, tight spaces, or customers who do not have the proper unloading equipment available.

Unload the Kiln Yourself

If you prefer to handle unloading yourself, make sure you have the proper equipment and enough help available. Depending on the kiln size and weight, this may require a pallet jack, dolly, forklift, loading dock, or similar equipment.

Planning ahead before delivery helps make the unloading process safer and smoother.

Inspecting Your Shipment

All Paragon shipments are FOB origin, meaning ownership transfers when the kiln leaves Paragon’s facility. Inspection upon delivery is essential.

Please inspect your shipment carefully before signing for delivery.

If There Is Minor Visible Damage

  • Note the damage on the delivery paperwork before signing.
  • Take clear photos of the packaging and any visible damage.
  • Accept the shipment if the damage appears minor.
  • Inspect the kiln immediately after unpacking.
  • Contact Peach State Pottery as soon as possible.

If There Is Severe Visible Damage

  • Refuse the shipment if the damage appears severe.
  • Take detailed photos before refusal.
  • Contact Peach State Pottery right away.

If You Discover Concealed Damage

Concealed damage is damage discovered after the kiln has been unpacked.

  • Notify the carrier and Peach State Pottery as soon as possible.
  • Keep all packaging materials.
  • Take detailed photos and/or video.
  • Report the issue within 5 days of delivery.

Photo & Video Documentation

Before opening the crate or box, take clear photos or video of the packaging from all sides.

Continue documenting as you unpack, especially if you notice broken crate boards, crushed packaging, holes in the box, visible impact marks, or any visible damage to the kiln or accessories.

This documentation is essential to help support a freight claim if damage is discovered.

If a claim is needed, documentation may include the carrier’s claim form, bill of lading, Paragon invoice, freight bill, inspection report, photos, videos, and repair estimate.

Returns & Exchanges

Paragon kilns are specialty products, and many models may be made to order, custom, or freight-shipped. Please review the return policy carefully before purchasing.

Return Eligibility

To be eligible for a non-warranty return:

  • The return or replacement request must be initiated within 30 days of the delivery date.
  • The kiln must be unused.
  • The kiln must be in original condition.
  • The kiln must be returned in its original packaging.
  • A Return Merchandise Authorization, or RMA, must be approved before the kiln is shipped back.

Please do not ship any kiln back without first receiving return authorization.

Restocking Fee

Non-warranty returns are subject to a 25% restocking fee.

Original shipping costs are not credited or refunded. Return shipping is the customer’s responsibility unless otherwise stated under an approved warranty claim.

Return Process

To start a return, contact Peach State Pottery with your order information and reason for return. We will help coordinate the next steps.

  1. Request return authorization.
  2. Wait for RMA approval before shipping anything back.
  3. Repackage the kiln carefully in its original packaging.
  4. Ship the kiln prepaid and insured to the designated return address.
  5. The kiln will be inspected after arrival to confirm it is in acceptable condition.
  6. If approved, your refund or credit will be processed.

Refund approval depends on the kiln arriving unused, in original condition, and properly packaged.

Custom & Special-Order Products

Custom or special-order Paragon kilns are not eligible for return unless covered by an approved warranty claim.

Refunds

Once your return is received and inspected, you will be notified whether your refund has been approved or rejected.

If approved, the refund will be issued back to the original payment method. Please allow time for your bank or credit card company to process the refund after it has been issued.

Late or Missing Refunds

If your refund has been approved but has not appeared yet, please check your bank or credit card statement, contact your card issuer or bank, and then contact Peach State Pottery if you still need help.

Sale, Promotional, and Scratch & Dent Items

Only regular-priced items may be eligible for refund.

Sale items, promotional products, and Scratch & Dent products are not refundable.

Exchanges

Exchanges are only available for items that are defective or damaged. If your kiln arrives damaged or you believe there is a defect, contact Peach State Pottery as soon as possible so we can help determine the next step.

Need Help?

If you have questions before ordering, during delivery, or after your Paragon kiln arrives, please contact Peach State Pottery. We are happy to help you understand shipping options, delivery requirements, liftgate needs, damage claims, returns, and exchanges.

Email: sales@peachstatepottery.com
Phone: 470-264-3563

Why Buy From Us?

Why Shop with Peach State Pottery?

We’re passionate about helping potters succeed — from hobbyists to professionals. Here’s why makers choose us:

  • Expert Guidance — Our team helps you choose the right kiln for your space, power, and firing needs.
  • Transparent Pricing & Free Shipping — What you see is what you pay. Free standard shipping to the contiguous U.S. with no hidden fees.
  • Flexible Policies — Generous returns, including the manufacturer’s recommended first test firing.
  • Dedicated Support — Real people ready to assist with lead times, delivery, troubleshooting, and warranty questions.
  • Built to Last — We focus on quality equipment that supports your long-term pottery journey.

Warranty & Product Support

We stand behind every kiln and piece of equipment we sell. Most products include the manufacturer’s standard warranty covering defects in materials and workmanship.

If you receive a damaged or defective item, note it at delivery and email clear photos to sales@peachstatepottery.com the same day. We’ll handle replacement or repair at no cost to you and cover return shipping for approved claims.

Please retain all original packaging until the issue is resolved.

Manufacturer’s Recommended First Firing is allowed without affecting your return eligibility, as long as the kiln is returned in excellent, like-new condition with all original parts and packaging.

Have questions? Reach out anytime at sales@peachstatepottery.com.

Warranty

Paragon Kilns Warranty

Paragon kilns are warranted by Paragon Industries, L.P. to the original purchaser against defects in workmanship, subject to the warranty periods and exclusions listed below. The warranty period begins from the date the kiln ships from the Paragon factory, unless the original purchase date from an authorized Paragon distributor or dealer can be established.

This warranty is provided by Paragon Industries, L.P. Peach State Pottery is here to help customers understand warranty coverage and assist with the process if warranty service is needed.

Warranty Periods

Warranty coverage varies by kiln model, series, controller, and component type.

Product / Component Warranty Period
QuickFire kilns 3 months
BlueBirds, HT-Series, Home Artist, FiberFuse-16, J-Series, KM-Series, SC-Series, and Vulcan kilns 1 year
Vulcan elements Not warranted
Kilns rated above 2300°F, except Dragon, Iguana, and Viking models 1 year
TNF 2 portable control boxes 2 years
GF, GL, and Fusion series kilns rated 2000°F or lower 2 years
Other kilns not listed above with a maximum temperature rating of 2300°F or lower 2 years
Sentry 12-key controller 2 1/2 years
Sentry Xpress 3-key controller on a new kiln Length of the new kiln warranty
Sentry Xpress 3-key replacement controller for older kilns 1 year
Sentinel SmartTouch controller 2 1/2 years
Sentinel TouchXpress controller 2 1/2 years
Dragon, Super Dragon, Iguana, and Viking kilns 2 years
S-Type thermocouple and APM elements on Dragon, Super Dragon, Iguana, and Viking models 2 years
Standard elements on Dragon, Super Dragon, Iguana, and Viking models 6 months
Sentry controller on Dragon, Super Dragon, Iguana, and Viking models 2 1/2 years
Type-K thermocouple on Dragon, Iguana, and Viking models Not warranted

These warranty periods apply unless otherwise agreed to in writing by Paragon Industries, L.P.

What the Warranty Covers

During the applicable warranty period, Paragon Industries, L.P. will repair or replace parts that become defective under normal and proper use, provided the kiln has not been subjected to misuse, improper installation, freight damage, modification, or any of the exclusions listed in this policy.

At Paragon’s discretion, warranty service may be handled in one of the following ways:

  • Paragon may furnish and install replacement parts at the factory, with transportation costs to and from the factory paid by the owner.
  • Paragon may request that defective parts be returned to the factory for examination.
  • After factory review, Paragon may provide replacement parts with installation instructions, shipped postpaid to the owner.

The warranty on repaired or replaced parts is limited to the remaining, unexpired portion of the original warranty period.

Warranty Exclusions

The Paragon warranty does not cover damage or issues caused by:

  • Overfiring, including firing beyond the melting temperature of the material being fired, regardless of the cause.
  • Damage to ware, tools, kiln furniture, or anything inside the kiln caused by overfiring.
  • Allowing the kiln to exceed the maximum temperature shown on the kiln’s nameplate.
  • Abuse, neglect, freight damage, or improper storage.
  • Reduction firing or salt firing.
  • Improper electrical installation.
  • Using the kiln for purposes other than ceramics, glass, heat treating, or the purpose for which the kiln was intended.
  • Element burnout caused by contact with foreign materials.
  • The patented Dawson Kiln Sitter and/or Limit Timer manufactured by W.P. Dawson, Inc.

Original Purchaser Only

Warranty coverage applies only to the original purchaser. It does not transfer to future owners.

This warranty also does not cover replacement of parts that are considered expendable by nature.

Modifications & Unauthorized Changes

The warranty may be voided if the kiln is altered, modified, tampered with, or adversely affected by attaching any feature, device, or accessory without express written permission from Paragon Industries, L.P.

Freight Damage Is Not Warranty Damage

Damage caused during shipping or freight delivery is not treated as a warranty defect. Freight damage must be documented at delivery and handled through the freight claim process.

Please inspect your shipment carefully before signing for delivery, take photos or video before unpacking, and report visible or concealed damage as quickly as possible.

How to Start a Warranty Claim

If you believe your Paragon kiln has a warranty-related issue, contact Peach State Pottery with your order information and a clear description of the issue. We will help review the situation and assist with the next steps.

A warranty claim should include:

  • Your name and contact information
  • Your order number or proof of purchase
  • The kiln model and serial number, if available
  • A description of the issue
  • Photos or videos showing the problem
  • The name and address of the dealer from whom the kiln was originally purchased

Any claim for warranty adjustment must include the name and address of the dealer from whom the kiln was originally purchased.

Limits of Warranty Coverage

Repair or replacement of defective parts fulfills Paragon’s warranty obligations. No other obligations or liabilities are assumed in connection with Paragon kilns, and Paragon does not authorize distributors or dealers to assume additional obligations or liabilities on its behalf.

There are no other warranties expressed or implied, including implied warranties of merchantability or fitness for a particular purpose. Paragon Industries, L.P. is not liable for loss of profits or indirect or consequential damages arising from defects in material or workmanship. Some states do not allow the exclusion or limitation of incidental or consequential damages, so these limitations may not apply to every customer.

Governing Law

This warranty agreement is made in the State of Texas. Its validity, construction, and all rights under it are governed by the laws of the State of Texas.

This warranty gives you specific legal rights. You may also have other rights, which vary from state to state.

Need Help?

If you have questions about your Paragon kiln warranty, need help identifying your warranty period, or believe your kiln may need warranty service, please contact Peach State Pottery. We are happy to help guide you through the process.

Manuals

Visit this link to view all of Paragon's Kiln Manuals



CLICK HERE