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Alternative heating
Following my posting re reverse thermostat, I have been wondering just what
ideas the collective brains on this group could come up with for Greenhouse/poly tunnel heating. We get a lot of questions re Gas , electric or paraffin heating, but surely we can come up with something free/cheep and useable. I seem to remember talk of having bottles of water with washing soda in solution in them, the idea being that when the temp dropped to below 50 then the soda would crystallize giving off heat, and when the water was over about 60 then the soda would absorb heat as it went back into solution. Now have this in tanks with some sort of heat exchanger taking heat from the top of the house in the day and heating the tanks......... -- David Hill Abacus nurseries www.abacus-nurseries.co.uk |
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