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GBlist: Re: heat pumps




Which manufacturer makes the most efficient ground/water coupled HP that
can be operated from photovoltaics.I expect a COP of at least 4.5
(heating) for a liquid-to-liquid system, but am really interested in small 
units (design heat loss = 30,000 Btu/hr @ -24 dF) with COP of 12 (like
Dennis Lee's HP) and environmentally-sound phase change mediums.
_________________________________________________________
Jorg Ostrowski,  M. Arch. A.S. (MIT), B. Arch. (Toronto), Ecotect 
 - living a conserver lifestyle & working in a sustainable home and office
Web Site [under construction]: http://www.ucalgary.ca/~jdo/ecotecture.htm
e-mail: <jdo@acs.ucalgary.ca>, <ash@freenet.calgary.ab.ca>
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