rose macaskie wrote:
I have been thinking about rocket stoves, I thought it is not only Paul Wheaton who talks of rocket stoves rather than other mass heaters, it is all permaculturists who talk about rocket stoves and not about the other types of mass heaters. It is a real pity not to read about other masonary stoves it open out the possiblities for making other versions of stoves so that there will be designs that suit everyone. Most of the principles of other mass stoves are the same as those of rocket stoves ecxept the fires in them are not usually down draft fires, lit from above the fuel but they all burn the smoke in chambers above or to one side of the place the fuel is burning to leave a clean burn that almost does not pollute at all and the fire heats bricks or clay or stones that later generate out the heat keeping the house warm after the fire has gone out.
It took me awhile to read about variouse types of stoves but i am glad i did it. I would be even more glad if i had made inroads on actually making a stove as Paul Wheaton has, i want one in my house and i like feeling valid because i have done whatever it is i would like to do, not just hoped to. Rose macaske.
Ernie Wisner wrote:
when the bed is heated fully yes it will. think of the bed like a battery if its fully charged it will do its job till it runs out of charge.
what this means in practical terms is that you will heat the bed till its warm and maintain that warm by firing the stove for a bit each day. the temp drift in your green house will not be very much if you maintain the charge. with a couple additions to how you take care of your green house you can keep the heat up around seventy or so. the bed is radiant so low growing plants inside the zone will not even frost if the bed is outside; there is a limit of about two feet above the uncovered bed.
things like double glazing, an insulated night cover, proper siting and/or tromb wall can allow you to pick the temp you want inside the structure. I designed the initial green house stove for growing sweet potatoes, ginger and turmeric so the soil temp was critical and had to be maintained at 80 degrees throughout the growing season.
this is probably more info then you wanted hope it helps.