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Post by swizzlenutz on Oct 28, 2009 15:33:11 GMT -8
This is probably already been done but I haven't found anything on it yet. Why can't a single section of stove pipe be made to create the same effect that you get with the rocket stove? Something that could easily be added to any wood stove. A simple barrel design that fits over a section of stove pipe that comes directly out of the top of the stove and has a pipe section on the back for attaching the pipe to go to the chimney. It seems like you could even add some kind of clay mass inside the barrel that fits between the barrel and the pipe. You would just need enough room to get the heated gases through the riser to the vent below. Has something like this already been done? Swizzle
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Post by Donkey on Oct 28, 2009 19:07:47 GMT -8
With a simple enough box-stove, like a potbelly or something like that, I see that it's possible. I's insulate all 'round the stove itself and make an ultra insulated heat-riser like thing on top. Though, there is the possible problem that NOT all stoves can be made to burn as completely as a rocket stove. This could create creosote problems and/or leak toxic fumes into the house.
It's just too dicey a situation for me to feel comfy with. As always, I'd say do the experiment outside and be damn sure the thing works BEFORE bringing it inside.
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Post by swizzlenutz on Oct 29, 2009 3:40:18 GMT -8
I wouldn't do it any other way. I've seen the heat reclaimers but they only catch the heat as its going out and not really doing much to keep the excess heat in the house. I tried to talk my dad into making a donut out of stove pipe to keep the heat in a little longer before it exits the chimney but he won't do it. He takes apart and cleans the stove pipes about once a week so a rocket stove type heat exchanger would probably need to be easy to clean, maybe stainless steel with some easy access doors on the top and bottom. I wonder if it would increase the efficiency even if mildly by creating a better flow. I also suggested that he stacks some brick or even rock on the stove to help store heat and he keeps sticking to the open kettle with water trick to put moisture in the air. The effort to store a little heat seems like a lot less effort then splitting a few extra face cords every year. I'll run a few more ideas past him this weekend and see what happens. Thanx for the input. Swizzle
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