Bob: IM S6 posted:There is no real easy clean solution to keeping warm in winter for us who live in northern climes (except to head far south...)
Actually, there is. I read an article about ten years ago about a dude in Michigan. He used solar hot water to take care of 85% of his heat and hot water needs. In MICHIGAN!
10 foot high by 24 foot long solar panels piped to a 500 gallon highly insulated tank. It had a coil rigged inside for domestic hot water. The balance of the tank was pumped through radiant floor heating in his home. I believe the home was approx. 2000 sq. ft. I recall he said it cost $75 a year to run the electric water pumps. The system would gain 20-30 degrees during the day( from 10 a.m. to about 2 p.m.), then lose 1 degree per hour overnight. As long as the water is between 110 to 140 degrees Fahrenheit, radiant works well. Stan can fill in the gaps here as that's his area of expertise, but it all makes sense to me.