Require a new water heater? To begin your search, you have to decide among the two main water heater types – · Tank water heaters · Tankless water heaters So, which one you should prefer? To make a good decision, here is a guide for buyers which makes it easier for them to take final decision- 1. Convenience · Tank water usually pre-heats the limited sum of water in their tank. You can obtain large tanks, but they are costly as well as there is a bound. In case you use up all the hot water in the tank, you have to wait till it refills and reheats. This lessens the fun of taking a long shower. · Tankless heaters warm the water as it’s required—at any time you turn on the tap. They can get water up to steaming, comforting temperatures in a few seconds. They can give hot water for an indefinite period. 2. Efficiency One of the main things homeowners wish out of innovative water heater is energy efficiency.