a conventional wood stove uses a lot of the heat to push the smoke out of the house
a rocket mass heater extracts as much heat as possible before releasing the exhaust
Bonny Convection Bench: Rocket Mass Heater, 8 inch ducting, with air
channels over hardwood floor. This large system currently heats a
3-story, multi-family house in a cool coastal valley. The large day-bed
in the bay window and comfortable seating bench are fitted with a
redwood vent system to match existing bookshelves (not shown).
Reinforcement and built-in air channels protect the existing hardwood
floor while providing passive circulation of warm air to the rest of the
house.
same concept for portable stove
= tomatoes in December with not added heat!
(among other goodies)
and
a smart axe called
Vipukirves
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