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Downdraft Gas Kilns
Olympic DownDrafts Gas Kiln Construction
The DownDraft kiln’s exhaust, as well as intake, is at the bottom. DownDrafts require a chimney or stack to induce enough draft to pull in fresh air for combustion. Olympic DownDrafts fire to cone 10, 2350° F and can be built of brick or fiber. Fiber walls allow the kiln to heat up and cool down faster than brick walls, which are designed for a slower cooling down and heating up firing.
The frames of the Olympic downdraft gas kilns are built of heavy angle iron and metal tubing. Kiln walls are 4 ½” insulating brick with 1” ceramic fiberboard and 1” air space created by the tube frame. The exterior of the downdraft kilns are durable stainless steel. Fiber and brick DownDrafts are built with double insulated floors, consisting of brick and ceramic fiberboard. The additional strength and insulation enables the kiln to fire at high temperatures, and to maintain temperatures, without damage or deterioration. The roofs of the Olympic DownDrafts are designed with bolt in pyro-block modules for energy efficiency and easy repairs. The DownDraft Car kiln s have a heavy gauge iron track for rolling the kiln floor and door in and out of the kiln chamber.
Olympic DownDrafts are built with high efficiency venturi burners that are underneath the kiln chamber And have option of being built on the side of the kiln chamber. Forced air burners are an available option.