Evenheat Knife Oven - KH 414
by Evenheat
Save $658.01
Original Price
$3,290.00
Current Price
$2,631.99
Free Freight Delivery Included
✓ No sales tax outside GA
✓ Liftgate included free
✓ Authorized dealer
Made to Order: EvenHeat kilns are built after ordering. Current estimate is 4–6 weeks. We confirm all details after your order is placed.
Questions? Call or text us at (470) 264-3563
- 1 We submit your kiln order for production with the manufacturer.
- 2 We confirm the current estimated lead time and keep you updated.
- 3 Your kiln is built to your specifications and prepared for freight shipment.
- 4 We send tracking and delivery instructions once your kiln ships.
Evenheat · Heat Treating Oven · KH Series
Evenheat Knife Oven - KH 414
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
What’s included
Side-Opening Door DesignDoor swings out and to the side, positioning the superheated door well away from you during quenching operations. This safety-focused design is essential for heat treating work.
Cool-Touch Phenolic HandleSpring-loaded, one-handed handle mounted at the front of the door stays cool to the touch. Serves as both handle and door latch for convenient operation.
Door ShieldProtective shield reduces door and handle temperature while protecting firebrick from damage during repeated opening and closing cycles.
Swing View Control EnclosurePivoting enclosure lets you rotate the control to your preferred viewing angle for programming, then lay it flat to monitor from across the shop.
Reinforced Stand with Tool RestHeavy-duty upgraded stand design includes integrated tool rest for convenient placement of tongs, gloves, and other heat treating tools during operation.
Power Interrupt Safety SwitchAutomatically cuts power to heating elements when door is opened and reapplies power when closed. Built-in safety feature protects against accidental element damage.
Technical specifications
ModelKH 414
SKUEH-KH-414
Chamber dimensions13.5" depth
Cubic feetContact for specifications
Maximum temperature2200°F (1204°C)
Voltage120V (standard household)
AmperageContact for specifications
WattsContact for specifications
Brick thicknessContact for specifications
Estimated shipping weightContact for specifications
Warranty2-year limited (registration required within 30 days)
Optional accessories
Quiet Drive Solid State RelayEvenheat's patented relay with no moving parts fires up to 60 times per second for incredibly tight temperature control. Essential upgrade for precision heat treating.
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, 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. For exact internal dimensions including width and height, 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.
Is the Quiet Drive Solid State Relay worth the upgrade for heat treating?Absolutely. 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, this upgrade 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?
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