Evenheat Heat Treat Oven - LB 22.5

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8 reviews
Sale price$ 2,108.00 Regular price$ 2,635.00
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Model: Evenheat LB 22.5
Inside Dim: 10" (width) x 6.5" (height) x 22.5" (depth)
Outside Dim: 20" (width) x 19.5" (height) x 30" (depth)  
Max Temp: 2200° F
Voltage: 240 volts
Amperage: 15 amps
Watts: 3,600 watts
Receptacle: 6-20R
Ship Wt: 104# (freight)



  • FREE SHIPPING in the contiguous US!
  • Rampmaster w/ Express Mode
  • Side Element Design
  • Swing View Adjustable Control (on RM & TAP Controllers)
  • Designed for Higher Temperatures
  • Side Opening Door with Door Guard
  • Cool-Touch Handle
  • Heat Trap
  • Tool Rest
  • Loud Alarm Jack
  • Compression Construction
  • 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 LB 22.5 is a side-element only design that allows the heat treater to use the entire depth of the chamber, regardless of blade length. This makes the LB 22.5  long blade friendly because it allows the user to load long blades very close to the back of the heating chamber while providing excellent temperature distribution. If you currently heat treat long blades or intend to at some point, the LB Series is made just for you. Of course, shorter blades are entirely welcome and receive the same accurate heat treating that Evenheat is known for.

The Evenheat LB 22.5 is designed exclusively for heat-treating and is capable of all heat treating processes up to 2200°F (1204°C). 

LB series ovens have the power to get you to temperature quickly: expect to reach a critical temperature within an hour for temps up to 1900°F (1040°C).

LB Series ovens are now offered with an optional solid-state relay. Solid-state relays can be triggered up to 60 times a second compared to a mechanical relay that is limited to about once every 10 seconds which translates into very tight and responsive temperature control. As an added benefit, we expect that the solid-state relay will never wear out or need replacing!

The controls of the LB series feature our Swing View Adjustable Control. The Swing View is a pivoting, swing-up enclosure that allows the user to rotate the control to a comfortable viewing and programming angle. It's that simple. The swing view pairs well with our touchscreen controls as the viewing angle can be perfectly aligned. You'll love it.

Why the LB Series?

The LB Series side-element-only design was inspired by culinary and long-blade makers as well as the knife making the community as a whole. Knife makers needed to use the entire length of the chamber without overheating their blades at the back wall. Evenheat took a fresh look at their heat treat oven designs, removed the rear wall element and created the side element only LB Series.

​The results are incredible: front to back temperature distribution is dead-nut. Whether you're making culinary, tactical, fixed blades, folders, doing gun work or something else entirely, the LB Series sets the new standard! A special thanks to culinary blade makers Bill Burke and Geoff Feder for their design advice and prototyping.

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
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Filter Reviews:
Bode P.
United States United States
I recommend this product

LB 22.5

Had a great experience with my Evenheat Order. Made my choice and ordered, took a little while to build but was well worth waiting for! Excellent product and quality… support is awesome get updates on education on product. Highly recommended!!

Annie W.
United States United States

Awesome customer service.

Great product would recommend.

David S.
United States United States

Great product

Seems to work just like they said it would. Easy to use.

Patrick P.
United States United States

Super communicative during purchase and shipping, exactly what I wanted

The oven is fantastic, the tap controller makes it incredibly easy. Comes up to heat faster than I expected.

Wayne S.
United States United States

Great bladesmithing kiln

I make large bush tools as a side business. In the past I used a gas forge. The reason I purchased this kiln is for better consistancy in heating the steel. It is much cooler to work around than a gas forge. If you get a evenheat kiln, spend the extra for the tap controller, it is so worth it. It is really easy to program and you can get real time graphs on what is going on. Kinda wish I bought the longer one for sword making (mine is the 22.5"), maybe in the future. People at Kiln Frog were nice and easy to deal with.

Jeff B.
United States United States

Game changer !

My new LB 22.5 is a game changer ! I wish I would have purchased when I first started making knives. The girls at Kiln Frog were awesome to deal with and very helpful.

Wes L.
United States United States


Excellent all the way around! Thanks!

Kent M.
United States

Excellent kiln

Besides the fact even heat behind in production kiln frog was great