Posted by AstickfortheMULE on October 11, 2006, 3:23 am
I need suggestions for a controller that will sense difference between
the collector and storage and turn on the pumps. I am using an
unglazed collector from Switzerland called Energie Solaire and storage
will be large volume, around 4000 gallons to temper and probably heat
Posted by Solar Flare on October 12, 2006, 2:09 am
Posted by SJC on October 12, 2006, 3:33 am
I don't know if this is what you are looking for but:
Differential controllers look for the difference in temperature between
your collectors and the water stored.
I would be interested in learning how your design works. I am thinking
of a similar system with lots of warm water and a fluid source heat pump.
Posted by AstickfortheMULE on October 13, 2006, 2:30 am
My 500 square feet of Energie solair ES roof is unglazed and faces due
south at 23 deg pitch. We are building a 3200 square foot house out of
SIPS in Seattle.
Very mild climate, but fairly cloudy Oct-March. Lows into 30's
averages around 40's.
I have a large, heat storage of 5000 gallons. I am planning using a 3
ton heat pump for the moderate temperatures in the tank during the
I am running 2000 feet of 1/2 pex in the tank for tempering the hot
water and summer use.
I am on the steep part of the learning curve for heat pumps and I am
trying to figure out the optimum system.
3 tons is around $700
Posted by AstickfortheMULE on October 13, 2006, 2:42 am
I have toy'd with making about a 500 gallon intermediate tank that
would have act as heat exchangers, tempering, etc.