solar pre heat for pools [RE-wrenches]

[David Blittersdorf]

I installed 300' of 1.5" diameter black poly pipe in the 4' concrete decking 
around my 44' x 18' pool (2 loops) and plumbed it directly to the output of 
my pump. I also installed 3 used American Solar King collectors on my 
pool shed roof and also insulated the steel walls of the pool down 4' with 
2" blue board. 

The pool pump is a varible speed motor drive that is controlled by a 1 
watt PV panel. The pump automatically turns on with the sun and speeds 
up the brighter the sun shines and therefore more flow to the tubing and 
collectors w/o valves and other controls.

It works well even here in the cool northeast (Vermont). Yesterday the 
pool was 78 degrees after cooling down from 85-90 F which it held all 
summer. Last night it was 40 F outside. Solar covers are required to hold 
in the heat at night.

Regards,

David Blittersdorf

On 8 Sep 2003 at 9:41, Dean T. Newberry wrote:

> A friend of mine put PEX tubing in the slab to cool the deck at George
> Lucas home many years ago, The technology is well worked out, but the
> chlorine attacks the PEX and copper. Use a pool water heat exchanger and
> propylene glycol loop with expansion tank and air scoop in the deck
> cooler circuit. Use the radiant floor standards for layout and circuit
> sizing.
> 
> -----Original Message-----
> From: Darryl Thayer [mailto:daryl_solar at yahoo.com] 
> Sent: Sunday, September 07, 2003 10:07 PM
> To: RE-wrenches at topica.com
> Subject: Re: solar pre heat for pools [RE-wrenches]
> 
> Yes i have ttried something like that, I recieved
> solar heat, just not very much compared to solar
> panels. 
> Daryl
> --- keith <kcronin at lava.net> wrote:
> > 
> > Hello
> > 
> >  
> > 
> > I had a thought this weekend, and wondered if it was
> > applicable or if
> > anyone has pursued this concept.  People who have
> > pools are accustomed
> > to putting those black solar pool panels on their
> > roofs.
> > 
> > Has anyone ever considered during the initial phases
> > of pool
> > construction, to install radiant floor, plastic
> > tubing in the
> > concrete/tile/stone around the pool deck area for
> > the same purpose?
> > 
> > I just thought we could make the panels less
> > unaesthetically (a word?)
> > pleasing and I always know that those darn pool
> > decks get very hot to
> > the bottoms of my feet!
> > 
> >  
> > 
> > My thoughts on a Sunday!
> > 
> >  
> > 
> > Thanks for the feedback
> > 
> >  
> > 
> > aloha
> > 
> >  
> > 
> > Keith Cronin
> > 
> > President
> > 
> > Island Energy Solutions
> > 
> > 318A Kuulei Rd
> > 
> > Kailua, HI 96734
> > 
> > 808-262-3268 Tel
> > 
> > 808-263-0338 Fax
> > 
> > www.islandenergy.net
> > 
> >  
> > 
> >  
> > 
> > 
> > [Non-text portions of this message have been
> > removed]
> > 
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David Blittersdorf
NRG Systems, Inc.
110 Commerce Street
Hinesburg, VT 05461 USA
Tel: 802-482-2255
Fax: 802-482-2272
email: davidb at nrgsystems.com
Web:http://www.nrgsystems.com

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