Ground water heat pumps work, even in MI or Canyada, because rather than relying on -20 outside air, they use ground temps, usually about 54 degrees, and thus operate in the heat pump's efficiency range.
At 01:57 PM 5/23/2008, you wrote: >LarryT wrote: > > > > Heat pumps are *very* efficient compared to oil > >Heat pumps are about 3x as effective as electric resistance heaters. >This drops with evaporator temperature, by 17 degrees F the ratio >is about 1:1 (you put in a BTU of electricity, you get out a BTU of >heat). This is great for virtually all your heating needs in Florida, >and still slightly useful on a sunny winter day in Michigan. > >_______________________________________ >http://www.okiebenz.com >For new parts see official list sponsor: http://www.buymbparts.com/ >For used parts email [EMAIL PROTECTED] > >To Unsubscribe or change delivery options go to: >http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com Loren Faeth _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com