Pool heaters ... swimming pools in comparison to using natural gas. If you opt for a gas or electric heater, you’ll also need to select a model with an appropriate BTU rating for your pool’s size. BTU ...

The Chinese manufacturer said its new heat pump system has a heating capacity of 6.5 kW to 17 kW and a coefficient of performance ranging from 4.8 to 5.23 at 15 C.

“Heat pump technology—the same kind that’s revolutionizing home HVAC technology—also works on water in swimming pools. You can use a modern pool heater/chiller to set your water to a ...