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New guy, basic questions.  RSS feed

 
frank gra
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Hi!
I've been planning to replace my indoor woodstove with a cob woodstove. In researching it I came across this site and signed up, it seems perfect for learning what I'm researching. The whole goal behind me wanting to build a cob stove is so that I can put in a lot more wood and have the cob hold the heat. That way I get up in the morning to a stove that is still warm and has some coals left, instead of a cold dead stove like what I have now. Then I came across the idea of a rocket stove mass heater. I like the idea of using less wood, but I don't like the idea of having to feed it all the time since it has to run full blast. So I'm wondering if there is already a solution somebody can point me to instead of me taking a week to come to the same conclusion.
Great site btw.

Thanks!
 
Dave Burton
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Location: Greater Houston, TX US Hardy:9a Annual Precipitation: 44.78" Wind:13.23mph Temperature:42.5-95F
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Welcome to permies Frank! I think you might want to check out some of these videos by Paul of rocket mass heaters along with his article and Ernie and Erica's website:



I think the main solution to not having to feed it all the time is to have a high thermal mass for the insulating material- like cob or stone. Regarding thermal mass, I think these two articles here and here do a good job explaining how thermal mass works.
 
allen lumley
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Frank G. : "The Book !'', Frank as a one time investment get '' The Book ! " Rocket Mass Heaters 3rd Ed. At rocketstoves.com Big AL !
 
Burra Maluca
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The thing about a rocket mass heater is that you do *not* have to feed it all the time.

Most people just run it for an hour or so, once or maybe twice a day, and the bulk of heat that usually goes up the chimney is captured by the mass, which sits there giving it out for the rest of the time.
 
When it is used for evil, then watch out! When it is used for good, then things are much nicer. Like this tiny ad:
Video of all the PDC and ATC (~177 hours) - HD instant view
https://permies.com/wiki/65386/paul-wheaton/digital-market/Video-PDC-ATC-hours-HD
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