Danny Markley

Thanks so much for any and all help during this process..I will probably get that PDF download for those plans. I don't want to reinvent the wheel but only do this project right and once....love learning ang teaching others

The length of my riser was determined by the height of 55 gal drums being 33-35". I'm not set on this measurement but would you suggest stacking a couple of layers of block above the tunnel(to set the barrel) in order to make riser higher? Otherwise my riser will be taller than the barrel placed on top of it.. I don't use the shop all the time, but I want to learn how to do this properly on my own shop because my sister wants one built up north in their cabins where they snowmobile for extended periods of time...I wonder if it would be possible to have two separate exits in the heat exchanger? Position the exhaust in such a way, that I could bypass the mass storage when not needed and just go out the double wall pipe thru roof ? Just a thought... I will use 8" pipe for exhaust like suggested. Probably going to research for a few month before I start so no hurry. Thanks for any opinions or help

I want to get around my list of materials for building a rocket stove mass heater, but I want to be sure my design is something that will work. This is my j-tube design, and I plan to bring my exhaust out the bottom of 55 gal drum ... ( running horizontal at the bottom ). My questions are.. Is the sizing of j-tube ok? I'm going to put the top of j-tube between 1 1/2"-2" from barrel.......does that seem like it will be ok? Sizing of exhaust ? Thinking of doing it in 6" but can do it in 8" since I haven't bought supplies yet. Going to put exhaust in L-shaped bench with exhaust leaving shop out roof only for better draft... Any red flags?