Check the listing for details. LSMIITTH Propane Gas Forge Furnace Burner Blacksmith Knife Making Raku Kiln. Condition: New. Listed at 35.00 USD. All parts is made of Stainless steel and brass gas jet nozzle. highly resistant to corrosion compared to other metals. This is not made from hardware store plumbing parts , like other seller's black iron pipe that has a short life because easily corroded in hot circumstances. 1: We use 1" O.D. feed tube ( 8''=20cm long) and 2" O.D. air choke allow for maximum air flow with a proper size gas port tuned to produce higher BTU with less propane , this design is more efficient and saves you money on propane cost , and can run at lower gas pressure and produces a NEUTRAL flame with no need to adjust air flow , the burner is self adjusting and drafts the proper amount of air based on fuel pressure . 2: We use 1-15/16"=48.5mm O.D. wide flame cone on the bottom and has more than enough heat for medium size forges. * Orders Shipping within 1 or 2 day with tracking number . Pick up or Cash is not allowed. * 30 days for an exchange,return or refund .* We have 3 warehouse in East,Central and West of USA. We will ship it from the warehouse nearest to you. so you can receive it in 2--5 days.