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Evenheat Knife Oven - KH 414

SKU EH-KH-414
Save $658.01
Original Price $3,290.00
Current Price $2,631.99
Talk to an Expert Secure Checkout 30-Day Returns No Sales Tax Outside GA

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Not sure this is the right fit? Power, size, firing needs: talk it through with a real person before you order. Call or text (470) 264-3563

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Flat-Rate Freight Delivery
✓ No sales tax outside GA ✓ Quoted at checkout ✓ Authorized dealer
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Made to Order: EvenHeat kilns are built after ordering. Current estimate is 4–6 weeks. We confirm all details after your order is placed.
  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.
Evenheat  ·  Heat Treating Oven  ·  KH Series Evenheat Knife Oven - KH 414 Model EH-KH-414 · 120V household power · 13.5" deep chamber · 2200°F max The KH 414 is Evenheat's most compact heat treating oven designed for bladesmiths and machine shops without access to 240V power. At just 13.5" deep, it offers the smallest footprint in the KH Series while reaching 1650°F in approximately 90 minutes on standard household current. The side-opening door with cool-touch handle puts the superheated door safely away from you during critical quenching operations.
Max Temp2200°F (1204°C)
Chamber13.5" deep
Voltage120V
Heat-up Time~1.5 hrs to 1650°F
Optional accessories
Loud AlarmOptional loud alarm that connects to the oven's alarm output jack so you can hear it from across the shop.
Additional ShelvesExtra kiln shelves allow you to maximize chamber space and process multiple blades or parts simultaneously during heat treating cycles.
Shelf KitComplete shelf support system designed specifically for the KH 414 chamber dimensions. Includes posts and hardware for secure installation.
Thermocouple ReplacementBackup Type K thermocouple ensures you're never down for long. Keep a spare on hand for uninterrupted production schedules.
High-Temperature GlovesRated for heat treating temperatures, these gloves provide essential protection during quenching and material handling operations.
Pyrometer with Digital ReadoutIndependent temperature verification tool for critical heat treating work. Confirms chamber temperature accuracy for quality assurance.
Controller upgrades
TAP Touchscreen — SDS IndustriesTop Tier
The TAP controller is ideal for bladesmiths running complex heat treating cycles with precise temperature ramps and soaks. Monitor your oven remotely via smartphone and receive notifications when cycles complete, so you can manage shop time efficiently.
  • Unlimited programs and firing steps
  • TAP mobile app — monitor from your phone
  • Push notifications when firing completes
  • Adjust temp or add time mid-firing
  • Auto-updates over Wi-Fi
  • Firing logs and maintenance schedules
Genesis Spark — Bartlett InstrumentsGreat Value
The Genesis Spark offers professional-grade control at a mid-range price point, perfect for knife makers who need reliable programming without the full feature set of TAP. The color touchscreen and 30 programs provide plenty of capacity for most heat treating applications.
  • 30 programs × 32 segments each
  • 3.2″ color touchscreen display
  • Wi-Fi for remote updates and diagnostics
  • Cone fire and ramp/hold modes
  • Preheat capability built in
  • Adjust firing in real time
Common questions
Can I really run this oven on a standard household outlet?Yes. The KH 414 is specifically designed to operate on 120V household current (13 amps, standard NEMA 5-15 plug), making it perfect for home shops or spaces without 240V service. It will reach 1650°F in approximately 90 minutes and can hit a maximum of 2200°F, covering the vast majority of knife and tool steels. The tradeoff is slower heating compared to 240V models, but you gain the convenience of plug-and-go operation.
What size blades can I heat treat in the KH 414?At 13.5" deep, the KH 414 is the most compact model in the KH Series, making it ideal for smaller shop spaces. It handles most standard knife blade lengths comfortably. Inside, the chamber is 13.5" deep, 6.5" wide and 4.25" high. Contact us with your specific blade sizes and we'll confirm fitment before you order.
Why does the door open to the side instead of down?Side-opening design is a critical safety feature for heat treating. When you're removing red-hot steel for quenching, you need the superheated door out of your way, not in your path. The side-swing design positions the door safely away from your body and workspace, and the cool-touch handle at the front makes one-handed operation simple even with tongs in your other hand.
Does the KH 414 include the Quiet Drive Solid State Relay?Yes, it's standard on all KH ovens. Evenheat's patented Quiet Drive relay fires up to 60 times per second versus 10 times per second for standard mechanical relays, delivering exceptionally tight temperature control. For heat treating where precise temperature management directly affects blade hardness and performance, it provides consistency you can measure in your finished work. It also eliminates the clicking noise of mechanical relays.
Does buying from Peach State Pottery affect my warranty?No. We are an authorized Evenheat dealer. Your two-year warranty is fully valid and you have direct access to Evenheat’s support team. Buying from an unauthorized seller can void your warranty entirely.
Not sure if the EH-KH-414 is right for you? We’re authorized Evenheat dealers based in Atlanta. Call, email, or chat — we’ll give you a straight answer about specs, sizing, and accessories before you spend a dollar.
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Common questions about this kiln

Still stuck? Call or text (470) 264-3563 and talk it through with a real person.

Is freight delivery included in the price?

No. Kiln prices do not include freight, and we do not quietly build it into the product price. Freight is charged at a flat rate based on your delivery address and is shown at checkout. Liftgate service is included when it is needed, and standard delivery is curbside. You can estimate your delivered cost with the ZIP code tool above the Add to Cart button.

Can I return this kiln if it is not right?

Return requests can be submitted within 30 days of delivery. The kiln needs to be in its original packaging, in new and resellable condition, and approved before it is sent back. A restocking fee may apply. Completing the manufacturer's recommended first test firing does not by itself make a kiln non-returnable, so you can confirm it works before you commit. Full terms are on our Returns page.

What electrical supply do I need for this kiln?

The Specifications tab on this page lists this model's voltage, amperage, required breaker size and NEMA plug configuration. Most 240V kilns need their own dedicated circuit fitted by a licensed electrician, while many 120V models run from a standard household outlet. If you are unsure what your space can support, call or text (470) 264-3563 before ordering.

Does this kiln come with a warranty?

Yes. This kiln carries the Evenheat manufacturer warranty. Coverage length, what is included and any registration deadline are listed in the Specifications tab on this page. We are an authorized Evenheat dealer, which is a condition of warranty coverage on most kiln brands.

What comes with the kiln, and what do I need to buy separately?

The What's Included tab on this page lists exactly what ships with this kiln. Most kilns need shelves, posts and kiln wash before your first firing, and these are not always included. A vent is recommended for indoor installations. Any add-ons available for this model are shown above the Add to Cart button.

About this kiln
Best for: Glass artists, ceramic hobbyists, knife makers, and specialty craftspeople who need a precision American-made kiln with accurate temperature control and a compact, studio-friendly footprint.
🔨 Lead time
4–6 weeks
Made to order — built to your specifications. We confirm the current estimate after your order is placed.
✓ Warranty
Manufacturer warranty
Full coverage included. We are here if anything goes wrong after your order.
Why buy from Peach State Pottery?
★ Authorized EvenHeat Dealer
★ No sales tax outside Georgia
★ Flat-rate freight delivery
★ Real support before & after order
★ Military discount for veterans
★ We are here if anything goes wrong
Call or text us:✆ (470) 264-3563
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EvenHeat 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.