I still have hope. What we need most is the will.
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Ground Source Heat Pumps
Posted by Heading Out on February 7, 2008 - 10:00am
Last week found me at the top table at a conference, having just given one of my “we’re doomed” talks on energy supply to the assembled group. As the conversation flowed around the table, the topic turned to reducing the size of electricity bills that have become a visible marker to the growing problem. Of the eight folk at the table, two had installed ground-source heat pumps, and a third is planning on doing it this summer. Earlier this year, while in Maine, I had a chat with the Bishop* who was considering putting in a system as a means of saving energy (and money) at the church complex.
A couple of years ago I had worked a little on a project that would speed, and reduce the cost, for using vertical wells as the location for the heat transfer pipes, and had given serious thought to putting a system in at home. However in all the cases I have just mentioned the pipes have been laid out relatively horizontally, in three cases in the ground, and in one at the bottom of a pond. With this growing popularity I thought it would be interesting to explain to those of you who don’t know, some of the basics of the concept, while at the same time perhaps drawing better words of wisdom from those of you that have already got systems in place.
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