Geothermal or ground- source air conditioner is the efficient unit ,who
makes them?
mak
----- Original Message -----
From: "Jim Cathey" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; "Mercedes Discussion List"
<[email protected]>
Sent: Thursday, November 20, 2008 6:58 AM
Subject: Re: [MBZ] OT Heat pump freezing up
There's a company up here designing some that can work down to -40F.
I'm considering one of the type that circulates coolant through a deep
hole.
I was told recently that the air-exchanger heat pump can run down
to about 20F, and uses about 50% of the energy of electric heat.
The newer ground-exchanger pumps will run down to whatever you
get in your area, and use about 33% of the energy of electric
heat. That's what I'd want, of course. We have acreage, so
we perhaps wouldn't have to go deep, cutting the cost of
installation.
-- Jim
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