puercoespin: its only 2 meters underground about.. I have heard of this one, my friend has it in his house in Lithuania, except in the pond.
He tells me there is another type, that you drill a very deep hole 3km down, he is thinking of getting this also.
puercoespin: 'Niekonwencjonalne źródła energii' and section was 'Wykorzystanie energii geotermalnej ziemi'. I will get someone to look into it for me.
puercoespin: all system is not to expensive.. It cost my friend 40,000 Litas (which is about the same as Zloty now) and he says it will pay off in 9 years. He did not get any money from the E.U. or anybody else.
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