Wattage and British Thermal Units (Btu) indicate how large of a space a heater can effectively warm up. Watts indicate the energy transfer rate, while Btu indicate the amount of energy used. 1 watt is ...

We may receive a commission on purchases made from links. If you live in a colder climate, chances are you take pains to make sure your home is nice and toasty in the winter, whether it's through ...