This would be called a geothermal heat pump.

you could heat your house as well as cool your house with one of these.

General rule: 1 Watt of energy = 2 Watt or more of heat (or heat removal)

Alain Pelletier
New Brunswick Canada

----- Original Message -----
From: "Rick C." <rixy@VISUALLINK.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Tuesday, June 11, 2002 12:30 AM
Subject: Re: [OT]: Using well water to air condition home


> Rather than tying up the list, one can link to the development of the
system at:
> http://www.pic101.com/projects/acwatersys.htm
> Rick
>
> "M. Adam Davis" wrote:
>
> > So, Rick, any new news on spraying water on the condenser unit?
> >
> > I'm interested in doing something similar, and was going to send a
> > general message to the list but checked the archives just in case.  I
> > thought we had someone mention it recently.
> >
> > -Adam
> >
> > Rick C. wrote:
> >
> > >This is currently being done commercially now. It hasn't caught up yet
to the
> > >home (domestic) market as it should, but I've seen the numbers and they
are
> > >promising. A large warehouse I know of in Frederick, MD, has such a
system and
> > >their heating/air conditioning bill is about $50 a month compared to a
> > >conventional system in a comparable size building of about $450 a
month. The
> > >initial expense is a bit higher though, but it has already paid off.
Plus, no
> > >Freon involved.
> > >
> > >I have spray nozzles on two sides of my outdoor condenser unit that
sprays well
> > >water on the coils when the compressor comes on. This has made a
noticeable
> > >difference in the time the compressor runs (less on time and less
cycling) when
> > >cooling the house during the summer. I'm getting ready to make some
measurements
> > >to see just how much of a savings this will make.
> > >Rick
> > >
> > >Rod Phillips wrote:
> > >
> > >
> > >
> > >>Hello to all,
> > >>
> > >>Here's an idea that I wanted to run past whoever is interested.
> > >>
> > >>I have 2 unused water wells on my property that are seperated by 100
feet.
> > >>One well has a 30 inch diameter concrete casing and is 36 feet deep.
The
> > >>other well has an 18 inch diameter casing and is about 25 feet in
depth.
> > >>
> > >>My idea is to pump water from well # 1 into a small, insulated
pressure
> > >>tank.  At the tank outlet would be a solenoid valve to let the water
flow
> > >>into some sort of heat exchanger in the furnace plenum.  Another valve
would
> > >>be located on the other side of the heat exchanger to discharge the
warmed
> > >>water into the second well.  The plan would be to monitor air
temperature in
> > >>the plenum and when it has reached a certain limit open both valves to
force
> > >>the warmed water out.  Additional temperature probes in the input and
output
> > >>lines could be used to determine when the exchanger is full of cold
water.
> > >>I have a probe in well # 1 now and the water temperature is 51
degrees.
> > >>
> > >>I would welcome any comments or experiences anyone has had along these
> > >>lines.
> > >>
> > >>                                   Rod
> > >>
> > >>--
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> > >>
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> > >
> > >
> > >
> > >
> >
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