I took a shower today with water heated by the sun! What a feeling! Our solar heating panels went up on the garage roof last week, and our aging 40-gallon hot water tanks were removed, and replaced by a humongous 119-gallon lifetime stainless steel tank that feeds both apartments in our two-family house. Primary heat is the sun. Secondary heat is an electric heater in the tank. Our expectation is that about 75% of our water heating requirements will come from the sun, annually. More in the summer and less in the winter, obviously. But even in the winter, plenty of heat comes from the sun. The excellent work was done by New England Solar Hot Water.
Remember, back in December, I told you about the trench I was digging? That was for this.
Speaking of home heating efficiency, our ductless AC/heating system was finished a few weeks ago by New England Ductless, and now (in moderate weather) we’re heating more efficiently with electric heat pumps. We’re still figuring out the best way to control them (which we do using our smartphones), or rather to balance them with the legacy steam heat in the colder weather. These condenser units are kind of dominant on the outside of the house, so I guess my home project for this summer will be to build some kind of privacy fence around them.
This was all made possible in part by a two-town group discount, various tax credits and rebates for renewable energy installations, and a 0% interest loan program run by a state agency (MassSave) and funded by utilities. All that brought the net cost down considerably. The hot water installation should pay for itself in 4-5 years.
Post your comment before you lose your train of thought. (Mine already left the station.)