Thermodynamic panels could give your home free hot water all year, night and day. They look a lot like solar panels but rather than taking energy from the sun, they absorb heat from the air outsid...
Spa massage is a good way to relax. Is there any OSB heat pump able to cooling the spa to 5 deg c for a cold bath? The answer is yes. As we got more and more inquire about pool/spa/Jacuzzi cooli...