Evenheat KH 418

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MSRP: $2,655.00 - $3,055.00
$2,124.00 - $2,436.00
Built To Order - 6-8 Weeks
75.00 LBS
Calculated at Checkout

Product Overview

KH 418:
The KH 418 is designed for heat treaters whose shops and workbenches come with a mortgage. Simply plug the KH 418 into any standard 120V household receptacle and you're ready to go.

The KH Series takes its design from our well regarded KF Series. It's a rugged and solid design that serves the heat treater well.

Available with the Set-Pro, Rampmaster, or TAP Touchscreen Controller.


  • 6.5” W x 4.25” H x 18” D
  • 70 lbs shipping weight
  • 120 volts, 13 amps, 1560 watts, NEMA 5-15P (Standard Household Plug)
  • Max temp on the KH series ovens is 2200F


  • Access Port (Pat. Pending)
  • Cool-touch handle
  • Corner mounting technique
  • Excellent temperature distribution
  • Full stainless jacket
  • Loud Alarm Output Jack (Rampmaster, & TAP)
  • Multiple Control Options (Set-Pro, Rampmaster, & TAP)
  • Power Inturrupt Switch
  • Responsive thermocouples
  • Side-opening Door
  • Standard Household Plug
  • Swing View Adjustable Control

120V North American Operation
For North American heat treaters who don't have access to 240V, the KH Series is made just for you. KH Series heat treat ovens are designed to operate from the North American standard household voltage of 120V.

The KH Series models are very capable of reaching temperature, however they will take about twice as long to get there than a comparable 240V model. Generally speaking they will reach 1650°F in about 1-1/2 hours.

Side Opening Door

Heat treating requires the removing of some very hot material from the chamber in order to quench. Everything in the chamber is hot, which includes the door. The doors on the KH's swing out and to the side. This puts the super-heated door well away from you as you concentrate on the work at hand.


Cool Touch Handle

The handle/latch on our swing out door is conveniently located at the front of the door, not hidden along the side. This spring loaded, phenolic handle is cool to the touch, is one-handed in design and serves as the door latch as well.



Relay Access Port

All KH models incorporate our Relay Access Port for simple, no-panel-off relay replacement.

Simply remove the access plate to gain access to the relay. There's no need to remove the control panel and dig into the internal wiring. It's absolutely simple and effective and all it takes is a screwdriver!

It's a given that mechanical relays will fail at some point. This relay access port really comes in handy when they do.


Door Shield

The KH's feature a door shield to provide protection against firebrick damage as well as to reduce the temperature seen at the door and door handle.


Swing View Equipped

Our TAP II and Rampmaster temperature controls are fitted to our Swing View Adjustable Enclosure.
The swing view is a pivoting, swing-up enclosure that allows you to rotate the control to a comfortable viewing and programming angle. Once you're done, lay it back down to see it from across your shop. It's that simple.
The swing view pairs well with touchscreen controls like the TAP II as viewing angle can be perfectly aligned. You'll love it.


Firebrick Construction

Like all our heat treat ovens, KH models are built completely of firebrick.

Firebrick has the desired characteristic of storing heat and then releasing it slowly and gently during the soak/hold portion of the process. It's this particular quality that serves the heat treat process so well


Loud Alarm Output Jack

A Loud Alarm output jack is included to connect our optional Loud Alarm. Enjoy 80db of irritating alarm bliss and never miss another quench.


2200°F Maximum Temperature

The maximum usable temperature for the KH models is 2200°F (1204°C). This maximum is well within the range for the vast majority of steels used by knife makers and machine shops.

Our KH 418 model features a side-element-only design borrowed from our LB Series models.

Maximum temperature is limited by the heating element wire used. We use a Sandvik Nickel-Chrome alloy wire for all KH model heating elements. This alloy has proven to last, it tends to stay put and generally plays very nice when used at temps below 2200°F.



Maintenance Parts Tag

To assist you in replacing worn items we have included a maintenance parts tag indicating the proper Evenheat part numbers for anticipated maintenance items.

Wish we had this decades ago.



Strong Stand and Tool Rest

Stands are strong and include a tool rest. Cool!



Power Interrupt Switch Equipped

The Power Interrupt Switch removes power from all heating elements as the door is opened and re-applies power as the door is closed.

The switch used for this feature is a true safety switch and is designed specifically for safety applications. This safety switch will literally tear apart and open any welded or stuck contacts - true safety!



Build Options


TAP II or Rampmaster Controls Option

KH models are available with your choice of the TAP II or Rampmaster temperature controllers.

Check out our Controls tab for detailed descriptions of both controls.



Quiet Drive Solid State Relay Option

All KH models are available with our Quiet Drive Solid State Relay option.

Our Quiet Drive Solid State Relay System offers tight temperature control, high reliability and increased heating element life. The Quiet Drive is arguably the best designed and best performing solid state system on the market.


Voltage Options

KH Series models are designed specifically for the North American standard voltage of 120V.


Default production for KH Series models is 120V.

We do offer to build KH Series models​ in 100V by request.

KH Series models are not available in 240V designs.

All controls available on the KH Series models will operate properly on both 50Hz and 60Hz line frequencies. To say it another way, line frequency has no effect. It doesn't matter.

Evenheat recommends that you check your operating voltage before ordering or placing the oven in service.


Voltage Phase Options

KH Series models are produced in a single phase design only.

3 phase Delta and Wye (380V, 400V and 415V) designs are not available.




KH 418

The KH 418 is our deepest and most popular KH Series heat treat oven. Performance is stellar when ordered with our Quiet Drive Solid State Relay option. Like the 240V LB models, the KH 418 is a side-only heating element design!


Chamber Dimensions:

18" D x 6.5" W x 4.25" H - 0.29 Cubic Feet

(45.7cm D x 16.5cm W x 10.8cm H - 8.2L)

Outside Dimensions:

23.5" D x 16.5" W x 17.25" H

(59.7cm D x 41.9m W x 43.8cm H)

Maximum Use Temperature:

2200°F (1205°C)

Standard Electrical:

120 Volts, 13 Amps, 1560 Watts, 50/60Hz, Single Phase

Power Cord Plug Configuration - NEMA 5-15


75lb. (32Kg) - Approx.

Shipping Method:

Freight Truck

NRTL Agency Listing: TUV Listed United States and Canada - Designed and Tested to CSA & U/L 499

California Prop 65
Evenheat kiln products may contain chemicals known to the State of Calif

Product Specifications

Chamber Dimensions:
18" D x 6.5" W x 4.25" H - 0.29 Cubic Feet (45.7cm D x 16.5cm W x 10.8cm H - 8.2L) ​

Outside Dimensions:
23.5" D x 16.5" W x 17.25" H (59.7cm D x 41.9m W x 43.8cm H)

Maximum Use Temperature:
2200°F (1205°C)

Standard Electrical:
120 Volts, 13 Amps, 1560 Watts, 50/60Hz, Single Phase Power Cord Plug Configuration - NEMA 5-15

75lb. (34Kg) - Approx. ​

Shipping Method:
Freight Truck

Warranty Information

Evenheat Kiln, Inc. guarantees to the original purchaser that for a period of two full years from the date of purchase the oven will be free of defects in workmanship and materials when used under normal and proper operating conditions.

Full Warranty Details


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