[permaculture] permaculture Digest, Vol 82, Issue 37
g.parlow at gmx.at
Fri Nov 20 15:46:03 EST 2009
> brick floor and black water drums to store thermal mass; I'm
> wondering if anyone has found a better material to store the water
> in, for example rectangular so there's not as much heat loss between
> the barrels?
to my understanding you want the thermal mass to 'loose heat' - this
is what keeps the temperature up in your greenhouse. if heat is just
stored but not relesed into the surroundings (inside the greenhouse),
they are no good anyways.
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