Pancho wrote:Food for thought. Cast iron pipe:Cast Iron is the premier piping material for sanitary and storm drain, waste and vent applications. It has been used in these applications for hundreds of years and is for non-pressure applications where temperatures will not exceed 212° F.
It is the most durable DWV piping system available and can be used in all types of construction. It has high crush strength, is noncombustible and offers superior sound-deadening performance.
That said, I have made firebox parts for my old woodstove out of commercial hot roll steel.......that is NOT the way to go.
Yeah, hot rolled can be nasty, but I wouldn't even try cold rolled steel for this type application - being that it would be in contact with the coal bed. I think it would be badly burned up at the bottom within a few seasons. Not good to have a magazine that could get shorter and shorter.