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Hot Shot Knife Maker's Kiln HS-24K

HotShot Oven & KilnElectric KilnSKU HS-24K
$3,092.25Regular price$4,100.00
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  • HotShot knife rack, FR KIT 201: one 5 x 5 in. base and 10 ceramic pins
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HotShot Oven & Kiln builds most kilns to order once your order is placed. We email your confirmed ship date and tracking.

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Authorized HotShot dealer · full factory warranty

Brand new and shipped direct from HotShot Oven & Kiln, so it carries HotShot's full factory warranty. If something goes wrong, call us and we handle the claim with the factory for you.

Warranty terms are in the Warranty and support section below.

Returns: request within 15 days, unused

Because kilns are heavy and often built to order, returns are limited, so we'd rather help you pick the right one up front:

  • Ask within 15 days of purchase or 2 days after delivery, whichever comes first. We issue a return authorization (RA).
  • It must be new, unused (beyond the factory test fire) and in its original packaging.
  • A restocking fee of at least 25% applies, up to 50% on custom, 3-phase or made-to-order units. Return freight is on the buyer unless we made an error.
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Not included: argon kit, oven stand and knife rack (sold separately). Needs a 240V, 20-amp circuit with a NEMA 6-20R outlet.

Most 240V kilns need their own circuit and the matching outlet, installed by an electrician. Homes are usually 240V; schools and commercial buildings are often 208V, so pick the voltage that matches your panel.

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Hot Shot Knife Maker's Ki...
$3,092.25
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Overview

Hot Shot · Heat Treating Oven · Front-Loading Knife Maker's Kiln Hot Shot Knife Maker's Kiln HS-24K Model HS-24K · 240 Volt · 24″ D × 8″ W × 7″ H · 0.78 cu ft · Max Temp 2200°F The HS-24K is a precision heat treating oven engineered specifically for knife makers and bladesmiths working with high-carbon and tool steels. This front-loading clamshell design delivers accurate temperature control up to 2200°F with a solid state relay for reliable thermal cycling during heat treatment, quenching, and tempering operations. The 24-inch deep chamber accommodates long blades and batch processing, with optional atmosphere capability for controlled gas environments.
Maximum Temperature2200°F
Chamber Size24″ D × 8″ W × 7″ H
Power Requirement240V / 20A
DesignClamshell Front-Loading
What’s included
The kiln itself, assembled and wired Built and wired in West Bend, Wisconsin, and shipped ready to connect. The type K thermocouple and the 40-amp solid-state relay are already installed inside it. The relay is an internal switching component, not the controller — the controller is a separate branded unit you choose when you order.
One programmable controller, as selected You pick the controller at the time of order. HotShot offers three on this model: the Bartlett Genesis Spark touchscreen, the TAP II Pro programmable full-color touchscreen, or TAP&Go app-connected control. One controller ships with the kiln.
Attached power cord and molded plug The cord is fitted at the factory with a molded plug — 6 ft. HotShot publishes amp ratings only and no NEMA plug code for any of its models, so we check the plug against the outlet you are going to use before your order ships.
User manual and controller manual The kiln manual plus the separate manual for whichever controller you chose — HotShot issues those as distinct documents, so you get the one that matches your unit.
Three-year HotShot warranty HotShot's factory page for this model states three years. Warranty work is handled through us as your dealer, so you call us first.
Not included Stand or bench, knife rack, kiln posts, shelves and any other kiln furniture are separate purchases. No HotShot manual or product page lists any of them as shipping with a kiln. This model has an argon provision, but that is a blanked knockout only — the argon gas kit itself is a separate item.
Key features
Solid State Relay
Built-in SSR provides precise temperature control and longer element life compared to mechanical contactors
Clamshell Door Design
Front-loading hinged door allows easy blade loading and rapid quenching access during heat treatment
Digital Controller
Tap&Go app-connected controller comes standard, with Spark or TAP II touchscreen upgrades for custom heat treating cycles
Type K Thermocouple
Industrial-grade thermocouple for accurate temperature measurement throughout the firing range
High-Density Fiber Insulation
High-density fiber insulation retains heat efficiently and withstands repeated thermal cycling
Steel Cabinet
Durable outer cabinet protects internal components and provides structural support
Technical specifications
ModelHS-24K
Interior Dimensions24″ D × 8″ W × 7″ H
Chamber Volume0.78 cubic feet
Maximum Temperature2200°F
Voltage240V single phase
Amperage20 amps
Wattage4800 watts (240V × 20A)
Recommended Breaker20 amp
Element TypeKanthal A-1 wire elements
Control SystemTap&Go (Spark or TAP II upgrades) with solid state relay
Door ConfigurationFront-loading clamshell
Shipping WeightApproximately 350 lbs
Warranty: One-year limited warranty from Hot Shot. Must be registered within 30 days of delivery. Valid only through authorized dealers.
Optional accessories
Argon Kit
Hot Shot’s kit with tubing, fittings and a ceramic dispensing needle for argon atmosphere to prevent scaling and decarburization (argon gas not included)
Type S Thermocouple Upgrade
Higher accuracy thermocouple for precision work at maximum temperatures; extends thermocouple life
Stainless Steel Shelving
Custom-sized stainless steel racks for batch processing multiple blades simultaneously
Emergency Parts Kit
Spare thermocouple, heating elements, and solid state relay for minimal downtime during production schedules
Power Interrupt Safety System
Automatically shuts down the kiln if power is interrupted, preventing unsafe restart conditions
Extended Warranty Coverage
Additional warranty protection beyond the standard one-year term for commercial operations
Controller upgrade
Genesis Spark Touchscreen — Bartlett InstrumentsRecommended
Bartlett's Genesis Spark touchscreen stores 30 custom programs plus industry presets, ideal for complex heat treating protocols with precise ramp rates, soak times, and multi-step tempering cycles. Color touchscreen interface simplifies programming custom schedules for different steel types.
  • Full-color touchscreen with Wi-Fi
  • Presets per industry plus 30 custom programs
  • Remote monitoring and firing alerts through the Bartlett Kiln Aid app
  • Built-in diagnostics and maintenance logging
  • Automatically adjusting PID temperature control
  • Software updates over Wi-Fi
Common questions
What steel types can I heat treat in the HS-24K?
The HS-24K reaches 2200°F, which covers all common knife steels including 1095, 5160, O1, W2, 52100, and most stainless steels like 440C and AEB-L. For higher-temp stainless steels like S30V or S35VN (requiring 1900-2100°F), this kiln provides adequate headroom. High-speed steels requiring temperatures above 2200°F are outside this oven's range. Hot Shot’s optional argon kit allows you to introduce protective gases during austenitizing to prevent surface decarburization on high-carbon steels.
Can I add a controlled atmosphere to this oven?
Yes. The HS-24K accepts Hot Shot’s optional argon kit, which allows you to introduce argon during heat treating. This prevents scaling and decarburization on blade surfaces, reducing post-heat-treat grinding and preserving edge geometry. The clamshell door design maintains adequate sealing for atmosphere retention during the austenitizing soak, though this is not a vacuum-tight sealed retort system.
What are the advantages of the solid state relay over a standard contactor?
The built-in solid state relay (SSR) switches power silently without mechanical wear, providing tighter temperature control within ±5°F compared to ±15-20°F with mechanical contactors. SSRs eliminate the clicking sound and electrical arcing of contactors, extending element life by reducing thermal shock from rapid on-off cycling. For precision heat treating where austenitizing temperature accuracy affects final hardness, the SSR provides meaningfully better results, which is why Hot Shot includes it as standard equipment.
Do I need a licensed electrician to install the HS-24K?
Yes, professional installation is required. This oven draws 20 amps at 240V and requires a dedicated 20-amp circuit with appropriately sized wire (typically 12 AWG copper). Most jurisdictions require permit and inspection for this electrical work. Your electrician will need to install a 240V, 20-amp outlet matched to the oven’s molded plug, per local code. Improper installation voids your warranty and creates serious fire and shock hazards. Budget $300-800 for professional installation depending on distance from your electrical panel.
Why should I purchase from an authorized dealer like Peach State Pottery?
Hot Shot's one-year warranty is only valid when purchased through authorized dealers and registered within 30 days of delivery. Unauthorized sellers cannot provide valid warranty coverage, leaving you responsible for all repair costs. As an authorized dealer, Peach State Pottery provides proper documentation for warranty registration, technical support for installation questions, and access to genuine Hot Shot replacement parts. We also understand kiln electrical requirements and can guide you through the electrician briefing process.
Not sure if the HS-24K is the right heat treating oven for your shop? Our team can help you evaluate chamber size, atmosphere requirements, and electrical compatibility for your blade production needs.
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