Pool heaters are built to work in tandem with your in- or above-ground pools. They’re powered by gas or electricity, and some models even have cooling abilities to take the temp down several notches.

Besides the long-term savings, heat pump water heaters have become more affordable with state and local rebates and federal ...

Capable of dramatically reducing hot water costs, the best electric tankless water heater offers many benefits. This guide has the top picks.