15 engines

Water Heating

Tankless versus tank, heat pump versus electric versus gas, and the replacement-timing math that beats waiting for a failure.

A water heater is one of the cheaper systems on this site to replace, which narrows most repair-vs-replace margins and makes the heat-pump-versus-standard-electric comparison one of the fastest paybacks anywhere on the site. These engines also cover tankless-versus-tank delivery style and the lifetime-cost effect of a longer-lasting unit, independent of which fuel or technology you choose.

For the ideas shared across every Water Heating engine, see Water-Heater Economics and Replacement Timing.