|Re: Cost of eco building||<– Date –> <– Thread –>|
|From: Michael Barrett (mbarretttoast.net)|
|Date: Fri, 11 Nov 2005 19:30:38 -0800 (PST)|
I can add some data to John Beutler's email about our ground source heating and air conditionong at Liberty Village here in Maryland. In January 2003 my ground source "loop" had to be disconnected for a week (while a sinkhole was repaired). Knowing this was going to happen I deliberately read my electric meter daily while the ground source loop was operating and while it was not, when the backup electric resistance heating kicked in. The cost difference was profound. My electric bill (which also supports electric cookstove, hot water heater, refrigerator, TV, lighting, etc.) averaged $4.50 a day with ground source and $14.00/day without ground source! It was an exceptionally cold January. In January 2005 my average electric cost was $2.85 a day. John says his bill is $120/month. I don't know what he is doing over there. My house is very similar (but there is only me in it), and my most expensive month this year was $91.35, the cheapest $35.22 John neglected to mention that "excess" ground source heat is transferred into the electric hot water heater, further reducing costs. Some weeks after moving into a newly built home one resident complained that her hot water wasn't very hot . It turned out that the electric hot water heater wasn't even turned on, and she was just using the scavanged ground source heat . Ground source is very good! I heartily commend it Michael Barrett
- Re: Cost of eco building, (continued)
- RE: Cost of eco building Alexander Robin A, November 12 2005
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