In article ,
Kenneth wrote:

On Sat, 08 Dec 2007 11:48:34 -0700, Doug Winterburn
wrote:


What was the recovery time after the setback days?

Hi Doug,

I don't know with certainty, but I do know it to be less
than an hour.

All the best,

Please be careful on high wind load, very cold days - I would suggest
that if you know that the next day is going to be that way you not do
the setback.

I have had Geothermal for more than 20 years, in the early winter and in
the spring, set back saves a lot of money, but from about the middle of
December to the End of February here in Michigan, we do not do a
setback, since the secondary electric elements cost way more than the
savings.

I am looking at adding solar thermal heating the south wall of the house
next summer to further reduce the winter heating bill. I have 60 feet of
southern facing wall that is in direct sunlight almost all of the day.
That should give me a good thermal boost on even partly cloudy days.

Doug