RE: [GBlist] re: Heat Sources

[Helena Meryman <meryman@rsapc.com>]

Using the right combo of ethylene glycol & distilled water means you don't
have mineral scaling, you don't risk frozen pipes when the system is on
minimum heat for "away" times,  and water has a higher heat transfer
coefficient than glycol , so the more water in the system -- the more
efficiently it will operate. 

-----Original Message-----
From: Kurtovich, Martin [mailto:MRK0@pge.com]
Sent: Thursday, September 26, 2002 5:27 PM
To: 'greenbuilding@crest.org'
Subject: RE: [GBlist] re: Heat Sources


Don't radiant floor heating systems typical use ethylene glycol as the fluid
media
to distribute heat to the surrounding concrete?  If that is the case, scale
is not
an issue.

-----Original Message-----
From: GlobalCirclenet [mailto:webmaster@globalcircle.net]
Sent: Thursday, September 26, 2002 2:20 PM
To: greenbuilding@crest.org
Subject: Re: [GBlist] re: Heat Sources



Tubing in concrete may have to be dug out when mineral scale builds up in
the tubes.

paul & barb - on the continental divide
http://globalcircle.net
*********** REPLY SEPARATOR  ***********

On 9/26/2002 at 3:58 PM Chris Koehn wrote:

>Donna-
>
>If you are doing a geo thermal system, why not run tubing in the concrete
>floor that will be in your basement anyway? This has to be about the most
>efficient way to heat such a space I can think of, both from an energy
>consumption standpoint and a build out cost standpoint.
>I have such a system in my home and it works great.
>I have put in-floor heat in for folks who aren't using a geo system, and
>fired it with a water heater. These systems also work well, are low tech,
>and very efficient. Both Journal of Light Construction and Fine
>Homebuilding
>have done articles on such systems.
>
>Cheers,
>
>Chris
>Top Ridge Timber Frame homes Inc.
>Cascade, WI 
>
>______________________________________________________________________
>This greenbuilding dialogue is sponsored by REPP/CREST, creator of
>Solstice http://www.crest.org, and BuildingGreen, Inc., publisher of
>Environmental Building News and GreenSpec http://www.BuildingGreen.com
>______________________________________________________________________





______________________________________________________________________
This greenbuilding dialogue is sponsored by REPP/CREST, creator of
Solstice http://www.crest.org, and BuildingGreen, Inc., publisher of
Environmental Building News and GreenSpec http://www.BuildingGreen.com
______________________________________________________________________

______________________________________________________________________
This greenbuilding dialogue is sponsored by REPP/CREST, creator of
Solstice http://www.crest.org, and BuildingGreen, Inc., publisher of
Environmental Building News and GreenSpec http://www.BuildingGreen.com
______________________________________________________________________

______________________________________________________________________
This greenbuilding dialogue is sponsored by REPP/CREST, creator of
Solstice http://www.crest.org, and BuildingGreen, Inc., publisher of
Environmental Building News and GreenSpec http://www.BuildingGreen.com
______________________________________________________________________