Roger Merry wrote:What do you want the heat for ? The barrel will have to be way too high to boil a kettle !!
Ernie Wisner wrote:nope wont melt the barrel. the book was written several years ago its about 17 years on the barrel now and still no problem. taller means more pull however; it also means your flame path will not in most cases reach the top of the heat riser. the perfect combo is for the flame path to be two thirds to three quarters the heat riser height.
Ernie Wisner wrote:I try to make sure the burn tunnel is as short as possible. if i could get it on all the systems the burn tunnel would not be more than a third of the heat riser height. if you have no problem with a barrel column in the house. by all means make the heat riser a but taller I think ours at the moment is 44 inches. burns like a champ. the other thing i would suggest is that instead of pipe you use brick for the heat riser. steel pipe will burn out and while thats not a bad thing if you have your perlite and clay mix right it is annoying to clean out flakes of burned steel. Sides i found out you can get 1/2 fire bricks and they work a treat.
Ernie Wisner wrote: Have you ever built one to the plans and dimensions before?
Ernie Wisner wrote: If not how do you know that one to dimension wont do what you want it to do?
Ernie Wisner wrote: have you actually read the book?
Ernie Wisner wrote:Until you read the damn book this discussion is stalled.