"A Cala heat pump water heater should be like the most amazing maid of honor or best man at a wedding." Your inefficient ...

We've tested and reviewed products since 1936. Read CR's review of the American Standard Hybrid Heat Pump water heater to ...

What's in a name? The ESCO Institute's Clifton Beck questions what can be technically classified as a heat pump.

We've tested and reviewed products since 1936. Read CR's review of the LG APHWC501M water heater to find out if it's worth it ...

The Department of Energy (DOE) recently released higher energy-efficiency standards for water heaters that will go into ...

Heat pumps have become a hot topic in building decarbonization conversations, but there are still misconceptions about them.

These systems cannot produce hot water, so you'll need a separate immersion heater or other water-heating system. In the summer, an air-to-air heat pump can operate in reverse. In other words, you can ...

It's recommended for homes with hydronic heat pump systems, so if you're considering ... Based on estimates from underfloor heating manufacturers around how much hot water you'd need, we've calculated ...

Because the site only had single phase power, Rinnai opted for multiple 9kW R290 heat pumps rather than one larger R290 commercial air-source heat pump, and the new Heat Pump-based system will now ...