RE:Ground sourced heat pump

 Anybody have any anecdotes for the cost of installing and running a ground
sourced heat pump in northern climates?

I'd be interested in comparing notes for homes approx. 2000 to 3000 sq.ft.
of living space.

Cheers

  Go find a neighbor who has a well of any kind, if you don't have a
well, yourself.  Ask him how much it costs him to run it.  How bad is
the corrosion?  Look in his pumphouse and see how old his pump is.
That'll give you some idea of how corrosive the ground water is.  You
can also tell how COLD the ground water is if he has a tap on the
pump, not the tank.  If ice water comes out of the groundwater, you'll
spend more time in the de-icing cycle than the heating cycle.

On Thu, 15 Jan 2004 08:19:40 -0500, "Willy Wanka"

 What well? we use trenches 8 feet deep, and slinky coils of plastic pipe.

no corrosion either.

--
Steve Spence
Renewable energy and sustainable living
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8 foot?  Seems a little deep to me.  I really don't think you'd need to go
that deep in most of the US.  I know that water lines around here are
usually not 14 inches deep if that.

 

Well, it's somewhere near -10F (-23C) here this morning. The airport
nearer Steve (In Massena, NY IIRC) reports a balmy -8F. People around
here with 14" deep waterlines are doing without the joys of indoor
plumbing. Minimum foundation depth is 4 feet, to get below frost, and
for ground source heat, you want to get down to where the earth is much
less affected by the air temperature - so 8 feet seems perfectly
reasonable.

--
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