5266Re: [pfaf] Re: cool/cold climate greenhouse
- Mar 3, 2011Just want to let you know that Jerome Osentowski in Central Rocky Mountain
Permaculture Institute has excellent cool/cold climate greenhouse design
utilizing the subterranean heating and cooling system, aka climate
battery. See more info:
:) ossi (from finland)
> You have to have lots of panels and lots of storage capacity to handle the
> nights and the unexpected days when there is cloud cover. In northern
> latitudes, solar in winter is a dream or a very, very expensive reality.
> From experience, it doesn't take many hours to drain a storage bank if it
> is not being replenished every day and I do mean every day. An overcast
> day is a big, big problem. Two days in a row means turning on the mains
> or a generator. When ever I look at a so-called off-grid setup, the
> moment I see a generator is the moment that I call foul.
> Since you are trying to minimise heat loss, it would seem to make sense to
> look at construction. Obviously, south facing is critical. If that's
> where the sun is strongest, why expose the northern wall to the air?
> Insulate it, ideally, by building into a hill side and burying all but
> that south wall. Build on a concrete slab that is painted black.
> --- In email@example.com, john willis <wilf1946@...> wrote:
>> Hello Traveller in ThymeTotally agree about heating greenhouses with
>> fossil fuel but I do feel they are pretty good passive solar collectors
>> on sunny days and also pv panels can be used to charge batteries for
>> nights and dark days.JohnMW
>> To: firstname.lastname@example.org
>> From: traveler.in.thyme@...
>> Date: Wed, 2 Mar 2011 13:59:36 +0000
>> Subject: [pfaf] Re: overwintering tomatoes in greenhouse
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