Bridget wrote:
I am going to try and use a soapstone wood burning stove for heat...and cook on top of it so cooking may be the heading of many columns for 'uses'....
If you are talking about a metal woodstove with soapstone slab sides (very pretty, I've seen) then it's an out-of-the-box solution and the manufacturer can tell you whether it will cook well, hold a warm temperature longer, or what.
Masonry
heaters and Rocket Mass Heaters are primarily for heating a home in cold season, cooking or baking can be a secondary design feature.
Natural Building does not come in standard sizes or functions, it's a custom-design, make-it-work-for-you world. You can build most of these devices in a wide range of sizes, provided that you test it out and adjust the proportions if needed.
We do include a rundown of a number of different fire-powered options in our
workshop, including Franklin stoves, Rumford and other fireplaces, ovens, cooking Rocket Stoves, and camp stoves.
Check out our website at
http://www.ErnieAndErica.info/firescience ; there's a short comparison of 4 different technologies at the end. We've added more to the workshop since I put this article up online.
You can also view some pictures at
http://picasaweb.google.com/eritter/ These are only the pictures that I own or have permission to post; more examples are available at the workshop.
Here, in table-like format, as much as I am willing to post so late:
Item: Purpose - Burn Efficiency
Fire: Burning - Various (Biofuels can be carbon-neutral, fossil fuels add to biosphere
carbon load)
Fireplace: Watching fire burn (may provide heating, cooling, cooking) - dirty burn
Stove: Cooking (pots/pans), heating (short term) - burn varies from very dirty to relatively clean; a few designs are very clean
Rocket Cookstove, tea stoves: cooking (single pot), relatively clean burning
LoReNa or The Good Stove: Cooking, 2 pots; medium to clean burn
Oven or Kiln: Baking, curing, heat-chemistry (burn varies, often dirty)
Furnaces: Burning, Melting, Smelting, Heating (often dirty / carbon-heavy)
Chimney or Hot Stack: provides draft, exhaust transport, can improve burn efficiency
Masonry Heater: Heating, warming, (long term) heat storage - optional oven or cooktop on some varieties. Burn varies from medium to relatively clean
Rocket Mass Heater: Heating, warming (long term), radiant heat (quick), storage - optional cooktop or other devices; burn varies from relatively clean to very clean
Hope that helps.
-Erica Wisner
http://www.ErnieAndErica.info