Evenheat Heat Treat Oven - KO 22.5

Save $ 566.00

8 reviews
Sale price$ 2,264.00 Regular price$ 2,830.00
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Model: Evenheat KO 22.5
Inside Dim: 9" (width) x 5.5" (height) x 22.5" (depth)
Outside Dim: 20" (width) x 19.5" (height) x 28" (depth)  
Max Temp: 2400° F
Voltage: 240 volts
Amperage: 15 amps
Watts: 3,600 watts
Receptacle: 6-20R
Ship Wt: 114# (freight)



  • FREE SHIPPING in the contiguous US!
  • Rampmaster w/ Express Mode
  • Designed for Higher Temperatures
  • Side Opening Door
  • Cool-Touch Handle
  • Full Stainless Jacket
  • Corner Mounting Technique
  • Responsive Thermocouples
  • Excellent Temperature Distribution
  • Mechanical Relays
  • 2-Year Limited Warranty (The manufacturer's warranty as well as the optional add-on Extended Warranty Protection Plan do not cover a service contractor to provide in-home kiln repairs.)

The Evenheat KO 22.5 Series of heat treat ovens are designed with a thicker firebrick structure and a maximum temperature of 2400°F. This extra insulation and headroom offer more speed and more power per cubic foot for high mass loads.

The KO Series heat treat ovens feature side opening doors that don't subject you to the added heat of a drop-down door. They also feature a forward-facing door latch that remains cool and is within easy grasp.

Why Upgrade from Mechanical Relays to Solid-State Relays?      

Mechanical Relays, which come standard on most kilns have internal moving parts which over time wear out and need to be replaced.  Kiln manufacturers recommend you replace your mechanical relays approximately every 2 years.  Solid-state relays have no moving parts and last far longer than standard mechanical relays and offer far better temperature control during hold times.  Since solid-state relays also have no moving parts to wear out, they NEVER need to be replaced.  You will notice that solid-state relays are silent.  The only sound you will hear is just the reassuring hum of the heating elements.  So, this factory upgrade saves you potential down time from having to wait for new relays to arrive, potential over-fires from relays sticking in the closed position, potential aggravation from having to learn how to remove and replace the mechanical relays yourself.  We think this upgrade is well worth the cost and will save you time and aggravation over the life of your kiln.

Check out the accessories you can use with this kiln!


Customer Reviews
4.8 Based on 8 Reviews
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Filter Reviews:
Garry B.
United States United States

evenheat ko 22.5

Used kiln once very impressed, heats up very fast. Will use this winter a lot more.

Ian B.
United States United States

From ian byron

It arrived packaged and protected very well; however, i havent had a chance to use it yet. I plan to have an electrician come out and put in a proper receptacle to fit the plug.

Michael A.
United States United States

Evenheat Heat Treat Oven - KO 22.5

It was good, have not used the oven yet but the ease of ordering and delivery were nice, the wait for the unit was longer than expected but I hear it is a good product and good things come to those who wait. There was no damage in shipping and the unit is very craftsman-like built.

Mike B.
United States United States

Only used twice, will have

Only used twice, will have better feel for how I like it a year from now.

Joshua H.
United States

Great product, needs more details

My overall experience was amazing. Everything went through just as described. I received my kiln a few days before the six-week mark which I knew about before I paid. My only two recommendations for improvement are; better tracking needs to be provided as well as the company shipping the item. The link that was sent to me didn’t work, so I couldn’t track my kiln as it traveled and only by right-clicking the link and reading the HTML text I was able to figure out SAIA was my shipper. Secondly, more information needs to be given about the type of electrical cord that is being used on the kiln. I had a hard time finding the adapter which prolonged my use after I received the kiln another two weeks! The plug used on the kiln is a VERY rare plug and there are several others more common that could have been used.

United States

Kiln review

Great product great support

United States


Great experience. Said it would be 5 to 6 weeks and got a little worried after no word at all after 5 weeks but got the work it shipped exactly 6 weeks after ordering.

United States

Great oven

Delivery was prompt once the unit was built. Well packaged with good communication.