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  • JasonL237 commented on lonesoulsurfer's instructable Simple Fire Piston1 month ago
    Simple Fire Piston

    5/8" should be close to his 15mm pipe. seems like an easy place to start combined with 1/2" dowel. I think I'd like to try an aluminum rod with a teflon ring, just to see if it would work and last.

    5/8" should be close to his 15mm pipe. seems like an easy place to start combined with 1/2" dowel. I think I'd like to try an aluminum rod, just to see.

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  • JasonL237 commented on velacreations's instructable How to build a Rocket Mass Heater2 months ago
    How to build a Rocket Mass Heater

    I would check a few things. First make sure your ash door has a good seal so no combustion air can leak into the system from the ash grate and turn your wood feed into a chimney. Second make sure you have at least a hand width of space between the wood feed and body of the stove that covers the bell. The coals from the wood feed can radiate and heat up a surface too close and create an up draft making a virtual chimney. Third make sure your house chimney does not catch wind at a funny angle and create back pressure.

    I would check a few things. First make sure your ash door has a good seal so no combustion air can leak into the system from the ash grate and turn your wood feed into a chimney. Second make sure you have at least a hand width of space between the wood feed and body of the stove that covers the bell. The coals from the wood feed can radiate and heat up a surface too close and create an up draft making a virtual chimney. Third make sure your house chimney does not catch wind at a funny angle and create back pressure.

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