DIY Solar thermal water heater..................... You tube. FAR better description than most. Very well done and good looking design. .................. Building a Water Heating Solar Panel.wmv - YouTube
"This option is small-scale and it is built around a reclaimed heat dispersal system from an old refrigerator (which you can get with the gas removed from your local dump). It has no pump as it is gravity fed and it requires no electricity to work. Just put it in the sun, turn on the water feed and you will get a slow but constant supply of very hot water..."
So if you have been looking for the perfect and high quality solar panels in Massachusetts then you should definitely have Amergy Solar as your guide as it is one of the best solar energy companies in NJ, NY, CA and MA.