A water heater is a home device that converts energy to heat before transferring that heat to water. It is typically connected to your cold water supply and this in turn supplies heated water to your home appliances and faucets. However, choosing a water heater is not just about how hot it gets, there a lots of other things to think about. For instance, is it energy efficient? Is it the right size for your home? What is the fuel source and will that increase the day-to-day bills. It is understandable that you do not want to spend a lot of time thinking about water heaters. And yes, that’s a good thing. But, it's a good idea to have at least a basic understanding of how they work. This will help you understand the best one to buy for your needs. The articles below will help answer all your hot water heater related questions and help you choose the best electric tankless heater for your home.