Mounting the smokestack

[Logstacker]

just finishing up my evaporator and have a question about mounting the smokestack. I welded 3/16 sheet steel to an 8" inside diameter pipe and welded it directly to my stove.Was wondering what to use between the smokestack and sap pan. Would 3/8 angle iron warp or would like a one by two tubing be better.

[psparr]

The angle should be fine. That far back in the arch, it will get hot, but not enough to warp.

[Super Sapper]

Angle should work but go at least 1/4 inch minimum thickness.

[Bricklayer]

I built the same stack for mine. I mounted mine to 1/2" plate steel and welded an angle on the front to sit against the back of the pan. Then welded 4 bolts to the rails on the arch and drilled the holes on the plate. I get it glowing red and hasnt warped yet. Kept it 2" away from stack hoping heat wouldn't transfer to the back wall of the pan and burn. But it does. I have to put a piece of ceramic blanket in between pan and stack to keep it cool.

[maple flats]

My arch is not homemade, but when I bought new pans I found it necessary to build a new rear stack collar. The new pans were as ordered, but the old Leader pans were not as labeled, the new ended up being 1.5" longer. I thus had to make a new stack collar. It is made of 1/4" mild steel with 1x1x1/8" thick angle welded on top, pointing up and the base stack sets on it. This has worked well, now in it's sixth season. As such mine is 1/4" + 1/8" for a total of 3/8" thick. The base stack simply rests on that and the angle iron pointing up just inside the stack holds it in place as gravity holds it down.

[Logstacker]

Thanks for all the info, Im going to weld on a 2x2x3/8 angle to the front of it. April 8th and I'm still building, sap is flowing going a little crazy here. Its that horrible thing called a job that I have to go to every day or else I could finish this thing. 2x6 evaporator with air under fire

[Logstacker]

March 8th, yep i must be crazy