I've been kicking around the idea of making an outdoor wood-fired boiler "smoke dragon" for a few years now. If I was going to start on some kind of project like this, I think I would start with a used boiler that had tubes and work on the firebox end of it. Most purchases from business sellers are protected by the Consumer Contract Regulations 2013 which give you the right to cancel the purchase within 14 days after the day you receive the item.

This is important when you prepare to locate the outlet on the EXACT opposite side of the bucket, so that the unit will be properly aligned when installed in the chimney pipe. In principal (I have done it before) a single skin flue pipe running through a bedroom boxed in brickwork, with vents at floor and ceiling level will give convected heat, you would have to insulate the top section of chimney so as not to cool gasses too much. When I am up north I've gone through 3 chains on a trip, all skip chains for a 24" bar, but I have 5 and another regular chain set for a 20" bar. I also was just reading another thread about using an old chain as a turbulator in a vertical fire tube heat exchanger.Then I re-inserted the union into the bucket, with the exchanger core removed, and folded all of the tabs over to hold the union in place.

I have had little luck finding old gas water heaters that don't leak, but this might still be a simple option. UK gives you the opportunity to increase the efficiency of your wood stove by purchasing one of our chimney heat exchangers. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Perhaps a intercooler off a turbo installation with the micro fins removed as they have somewhat thicker core tubes with more strength.

I drilled a 1/8" diameter hole in the band saw table the distance away from the blade equal to the radius of the circle desired.