When choosing an electric water heater for your house, it is necessary to take into mind your members family size and hot water usage habits. Choosing a heater that’s too small for your household can lead to damaging the unit, basically wearing it out faster and requiring early replacement. On the other hand, choosing a water heater that’s too large can lead to high electricity bills, as the unit needs to work more than necessary. There are several sorts of water heaters available for your household like: water heaters powered by natural gas, electricity, and liquid propane gas.