Monday, November 30, 2015

Solar Powered Homes





Solar Heated Homes



When Terry McIlveen built his home in Maine in 1997, he made the unusual choice to install radiant floor heating. “People thought I was nuts,” he says. However, since that time, radiant floor heat has become increasingly popular, and it’s easy to understand why. This type of heating system works by pumping hot water — or water and propylene glycol (antifreeze) — through a system of tubing in the floor. That means houses using this heating system get warmer from the floor up. In the winter, there are no cold floors underfoot — instead the floor is the warmest part of the home.
McIlveen soon discovered an additional benefit — radiant floor heat is a great match with solar hot water. If you already heat your home with hot water, it’s just one more step to heat that water with solar energy. In the spring of 2010, McIlveen hired ReVision Energy, a southern Maine solar company, to install rooftop solar collectors to help heat his home and produce his domestic hot water, thereby cutting his fuel oil consumption by up to 25 percent each year.
The system cost $20,000, so McIlveen chose to finance it through a loan. His exact savings on fuel each year will depend on how much he has to run the heater in the winter, as well as the ever-changing price of fuel oil — but he knows that if he saves just two fuel tanks a year, he can cover his loan payments.


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