Can water heater be installed outside? Yes, a water heater can be installed outside. You can set up a custom water heater system outside your bathroom, on the building rooftop. At present, there is no domestic water heater in the market, which you can install outside. The storage water heater
Does water heater consume more electricity? Yes, water heater consumes a good amount of electricity. There will be a noticeable difference between the electricity bill you pay usually and the electricity bill you would have to pay after using a water heater for a couple of weeks in your house.