The US-based heating specialist said its new air-to-water heat pumps use difluoromethane as the refrigerant and have a coefficient of performance of up to 5.37.
It comes from wholesale gasoline price increases averaging 6.2 cents, granting the nation's retailers a very unimpressive 0.4 ...
Most of the time, Dave Desparois fills his tank near his job in Elk River. “I try to get it up there because I get a little ...