Rocket Mass Heater Myths: "they cannot be that efficient"

Discussion in 'Designing, building, making and powering your life' started by paul wheaton, Nov 6, 2017.

  1. paul wheaton

    paul wheaton Junior Member

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    Donkey, Peter, Erica, Mud and I attempt to address skepticism over the claims that a rocket mass heater can heat a home with one tenth the wood.

     
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  2. 9anda1f

    9anda1f Administrator Staff Member

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    Hey Paul, good video! "Heat the people!"
    I found this the other night ... was wondering whether you've seen it?
    It'f being made for someone you know, the good folks at dirtpatchheaven:
     
  3. paul wheaton

    paul wheaton Junior Member

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    Hi Bill! Still wondering when I will see you at my door.

    I did see that. It is one of those things where I want to say "don't use metal in the burn chamber or the riser!" but by the time I was aware of what he was doing, he was well on his way.

    It is possible to succeed with metal in there - but only for tiny systems where the temp stays below 1400 degrees F. And at that low of a temp, there is concern that the system is not getting hot enough to burn all the smoke.

    The real test is when the system gets to be two years old. So after two years of heavy use, did the metal spall or melt out?
     

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