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Solar heated greenhouse anyone?
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dpack



Joined: 02 Jul 2005
Posts: 45372
Location: yes
PostPosted: Sat Jan 31, 15 12:48 am    Post subject: Reply with quote
    

when i have done the cloche thing i dug a double spit trench half filled it with raw manure ,topped it with soil ,plant into soil ,cover with cloche

i recon that gives a few degrees extra to soil and air temp above just a cloche ,it works well for salad and beans in a chilly place like west yorks

Mistress Rose



Joined: 21 Jul 2011
Posts: 15539

PostPosted: Sat Jan 31, 15 8:37 am    Post subject: Reply with quote
    

Mark I would agree that several different methods will be more likely to produce consistent results. Dpack, that is pretty well the way they used to do it I think, but usually for a long period they used a heap rather than putting it at the bottom of a trench.

I think you have a good few ideas to help you heat your green house Otley Lad.

OtleyLad



Joined: 13 Jan 2007
Posts: 2737
Location: Otley, West Yorkshire
PostPosted: Sat Jan 31, 15 9:55 am    Post subject: Reply with quote
    

Mistress Rose wrote:
Mark I would agree that several different methods will be more likely to produce consistent results. Dpack, that is pretty well the way they used to do it I think, but usually for a long period they used a heap rather than putting it at the bottom of a trench.

I think you have a good few ideas to help you heat your green house Otley Lad.


I can see it now - a greenhouse up to the eaves in manure (sat over a 2 metre deep thermal store. Half the roof has a PV panel (driving a fan to circulate the air from the below ground thermal store) and the other half a Thermal panel - with just a crack in between so the light can get into the 3 lettuce plants (I know 3 sounds a lot but I'm an optimist you see).

Maybe I should be working for the government...

Mistress Rose



Joined: 21 Jul 2011
Posts: 15539

PostPosted: Sat Jan 31, 15 4:24 pm    Post subject: Reply with quote
    

Think you could reduce the dimensions of the manure heap etc. slightly so you could get 4 lettuces in.

alison
Downsizer Moderator


Joined: 29 Oct 2004
Posts: 12918
Location: North Devon
PostPosted: Sat Jan 31, 15 7:19 pm    Post subject: Reply with quote
    

I asked Brigit, on FB and this was her answer about the sink hole.

Brigit Strawbridge Hi Alison, it helped a little, but the size of the sink was not large enough for it to be hugely effective. For it t make a big difference you would need the sink to be as large and as deep as possible. Hope this helps x

Mutton



Joined: 09 May 2009
Posts: 1508

PostPosted: Sun Feb 01, 15 9:57 pm    Post subject: Reply with quote
    

And for my third recommendation of this website for this evening....

www.builditsolar.com

In particular

https://www.builditsolar.com./Projects/Sunspace/sunspaces.htm

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