[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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>

This greenbuilding dialogue is sponsored by CREST <www.crest.org>
Environmental Building News <www.ebuild.com> and Oikos <www.oikos.com>
For  instructions send  e-mail to  greenbuilding-request@crest.org.