Large Updraft Gas Raku Kiln — Hand-Crank Lift Chamber, Cone 10
Max Temp
Cone 10 · 2350°F
Olympic Raku gas kilns bisque, high fire (cone 10), reduce, and raku — all in one updraft kiln. They're built from durable firebrick and use venturi burner systems for even, controllable firings on either natural gas or propane.
What makes a raku kiln different is the hand-crank lift chamber: a turn of the winch raises the firing chamber straight up, giving you fast, easy access to red-hot ware while keeping the heat trapped in the kiln and away from you. The 28 Raku is the largest model in the line — built for studios, classes, and group raku firings where you need to move a lot of ware in a single session.
Included with every order
Frame welded to the firing chamber, venturi burner system with multi-point ignition and thermocouple safety shut-off, peephole plugs, a brick for covering the porthole during reduction, full instruction manual, and a 1-year limited kiln warranty through Olympic.
Popular add-ons include a digital pyrometer, an electronic high-limit controller, castors, a low-pressure propane regulator, raku tongs, and gloves. Give us a call and we'll help you spec the right setup.
A note on lead time: Olympic kilns are made-to-order at their Flowery Branch, Georgia facility. Give us a call before ordering and we'll confirm current production estimates.
Key Features
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Hand-crank lift chamber — raise the firing chamber by winch for easy access to hot ware while trapping heat away from the operator
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Four firing modes in one kiln — bisque, high fire, reduction, and raku
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Cone 10 capable (2350°F) for full-range work
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4-burner venturi system — 280,000 BTU/hr total across a 10 cu ft chamber for even heat and fast, controllable firing times
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Runs on natural gas or propane with adjustable orifices, easily switched between oxidation and reduction
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Multi-point ignition lights all burners, holds the flame on each, and re-ignites any that go out
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Thermocouple safety shut-off stops gas flow automatically if the flame is lost
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Durable 3″ firebrick construction
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1-year limited warranty — built in the USA by Olympic Kilns
Full Specifications
| Model |
28 Raku (Updraft Gas) |
| Kiln Type |
Raku — hand-crank lift chamber |
| Inside Setting Area (Diameter × Height) |
25.25″ × 24″ |
| Inside Volume |
8.9 cu ft |
| Inside Chamber (Diameter × Height) |
28.25″ × 27″ |
| Cubic Feet |
10 |
| Outside Dimensions (W × D × H) |
48″ × 36″ × 78″ |
| Brick Thickness |
3″ |
| Maximum Temperature |
Cone 10 – 2350°F / 1288°C |
| Number of Burners |
4 |
| BTUs per Burner |
70,000 |
| Total BTU / HR |
280,000 |
| Gas Pipe Inside Diameter |
3/4″ |
| Propane (LP) Water Column Pressure |
11″ |
| Natural Gas (NG) Water Column Pressure |
7″ |
| Orifice Size — LP |
#40 |
| Orifice Size — NG |
9/64 |
| Propane Used per Cone 10 Firing |
12 gallons |
| Est. Ship Weight |
480 lbs |
Not sure if this is the right kiln for you?
Give us a call. We'll talk through your space, your gas setup, and the raku work you want to do, and help you land on the right kiln.
📞 (801) 839-5882
Monday to Friday, 9AM to 5PM MST
