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What heater for greenhouse?


 
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Ray and Fiona
Rank attained: Hazel Tree
Rank attained: Hazel Tree


Joined: 11 Sep 2009
Posts: 36
Location: Greystones, Co. Wicklow

PostPosted: Sun Feb 16, 2014 7:37 pm    Post subject: What heater for greenhouse? Reply with quote

I have two greenhouses, 8x 8 and 8 x 6 and I'm looking for some advise as to what heaters to get for them. I don't have any power supply to the greenhouses.

Thanks in advance.

Regards,

Ray.
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Greengage
Rank attained: Chlorophyll for blood


Joined: 09 Nov 2011
Posts: 2746
Location: Kildare

PostPosted: Sun Feb 16, 2014 9:48 pm    Post subject: Reply with quote

Lucky you. First you need a power supply then I would install undersoil heating cable.
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Blowin
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Joined: 20 Aug 2008
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Location: Drimoleague, Co Cork

PostPosted: Sun Feb 23, 2014 9:34 am    Post subject: Reply with quote

Hi, Ray! It all depends on what you want the heater to do - which may seem a silly thing to say - but some people just like to keep the frost off their plants and gain a few weeks of growing, others want to create a sub-tropical climate for growing exotic things.

If the former, I'm told that plastic water containers, filled with water and painted matt black (blackboard paint is ideal) will absorb natural warmth from the sun, even when cloudy, and then act as mini-radiators during the night - accent on the 'mini'. How you achieve this is the question. I suppose the de luxe system would be a row of 4 inch plastic pipes arranged along the back (north) wall of your greenhouse(s), organ pipe fashion, with stop ends at the top and bottom. Going down the scale, one could use any other containers that are available, even down to a wall of milk containers, but, if one of our pundits can confirm the science, it may be your solution?

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