Find the disconnect switch to your air handler or furnace, and switch it off. This will be located near the unit. Shut off the circuit breaker at your home’s electrical panel if you can’t find the ...

A peer-reviewed field study has demonstrated that software-driven controls can allow a standard 120-volt heat-pump water heater to deliver reliable hot water without backup resistance elements, ...

If you swapped the suspect 2-wire non-programmable with the known good 2-wire programmable from the bathroom and it works properly, there is no other conclusion. The 2-wire non-programmable is broken.

When it comes to getting a lot of heat fast, it looks as though a thin layer of graphite may be better than ordinary heaters made with nichrome wire. This realization may soon transform the ...