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#46
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Reverse thermostat
On Sat, 6 Mar 2004 12:44:48 GMT, Jaques d'Alltrades
wrote: The message from martin contains these words: ... and then there are real heat pumps. A heat pump expert I worked with assured me, that I could heat my house by extracting heat through the living room wall, that I share with a neighbour, the only snag was that it might cause frost to form on their side of the wall. You only need something like a length of something like copper pipe, a compressor from a deep-freeze and a means of distributing the collected heat. (Hot water tank, radiaror and fan, etc) yes, and efficient enough not use more energy sucking energy than than the energy you obtain. Heat can be removed from (say) underneath paths and drive, solar panels, the kitchen, the lodger's bed, deep down under the ground. He also developed a heating system that ran on a solution of old engine oil and water emulsified with a second hand Dutch mayonnaise machine. A large church in Haarlem was heated this way, parishioners brought old engine oil to church with them. Sadly burning old engine oil is illegal here now. Pity it's illegal, as ..... oh, as you we you mean they stopped using it? I think it's illegal here, but probably not in UK. They did stop using it in the church, I suspect he still heats his home with a similar bit of gear. -- Knowledge is knowing a tomato is a fruit; Wisdom is not putting it in a fruit salad |
#48
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Reverse thermostat
On 06 Mar 2004 13:26:39 GMT, emon (Rhiannon S)
wrote: Subject: Reverse thermostat From: martin Date: 06/03/2004 10:26 GMT Standard Time Message-id: ... and then there are real heat pumps. A heat pump expert I worked with assured me, that I could heat my house by extracting heat through the living room wall, that I share with a neighbour, the only snag was that it might cause frost to form on their side of the wall. I don't suppose you still have the plans do you? I could cut my heating bill and get rid of that b*st*rd noisey twerp at the same time. See what Rusty posted. Embed as much copper pipe as you can in the wall you share, insulate your side of the wall, circulate with a pump antifreeze through a heat exchanger i.e. your central heating radiators. -- Knowledge is knowing a tomato is a fruit; Wisdom is not putting it in a fruit salad |
#49
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Reverse thermostat
The message
from Jaques d'Alltrades contains these words: The message from "David Hill" contains these words: I am thinking of having 2 rows of 4 x 9 x 18 inch blocks with 4 inch perforated drainage pipe as ducting between them then toped of with 2in stone to fill the top 5 inch, poss. with slate or something as a toping. The idea is that the hot air from the top of the tunnel will be blown through the ducting all day heating the stone and blocks which will then give of the heat through the night at floor level below the benches. I don't know if it will work, but I have seen heat sinks used that are pits around 2 to 3 ft deep filled with 6 inch cobble stones that are heated through the day by the hot air from the top of a glasshouse. Thanks for the thermostat ideas, I'll look into them If you can afford it you'd do better to have several interconnected plastic drums well buried under the greenhouse beds and filled with water. A copper pipe riser to the top of the greenhouse, along the top/ridge, and back down to the far end of the drums, and a thermostat on the pipe so that when it reaches a preset temperature it starts a small central-heating pump. That way you can have warm beds heating the air in the greenhouse during the nights. He's got benches, so perhaps the stored warmed water could just be in tanks beneath them. Filled by rainwater diverted from the roof. He'd also have a constant supply of tepid water for watering. Janet |
#50
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Reverse thermostat
The message
from Jaques d'Alltrades contains these words: The message from "David Hill" contains these words: I am thinking of having 2 rows of 4 x 9 x 18 inch blocks with 4 inch perforated drainage pipe as ducting between them then toped of with 2in stone to fill the top 5 inch, poss. with slate or something as a toping. The idea is that the hot air from the top of the tunnel will be blown through the ducting all day heating the stone and blocks which will then give of the heat through the night at floor level below the benches. I don't know if it will work, but I have seen heat sinks used that are pits around 2 to 3 ft deep filled with 6 inch cobble stones that are heated through the day by the hot air from the top of a glasshouse. Thanks for the thermostat ideas, I'll look into them If you can afford it you'd do better to have several interconnected plastic drums well buried under the greenhouse beds and filled with water. A copper pipe riser to the top of the greenhouse, along the top/ridge, and back down to the far end of the drums, and a thermostat on the pipe so that when it reaches a preset temperature it starts a small central-heating pump. That way you can have warm beds heating the air in the greenhouse during the nights. He's got benches, so perhaps the stored warmed water could just be in tanks beneath them. Filled by rainwater diverted from the roof. He'd also have a constant supply of tepid water for watering. Janet |
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