How do the advantages of tankless water heaters compare to the disadvantages?
High installation cost Tankless hot water heaters may come at a higher initial cost but reduce energy costs by 40%. If a storage water heater is being replaced with a tankless one, the size of the electrical wiring or gas pipeline may have to be increased to handle the load and the existing vent pipe may have to be replaced, possibly adding expense to the retrofit installation. Hot Water delays Occasionally there are momentary hot water delays attributed to different causes, including a start-up delay (a “flow delay” created as hot water reaches distant faucets), an intermittent use delay (a short delay between the time when the water begins flowing and when the heater’s flow detector activates the heating elements or gas burner), and a cooler temperature delay (a gap between the cold water temperature, and the coolest warm water temperature that can be achieved with a hot and cold water mix). Recirculation system incompatibility Since a tankless water heater is inactive when hot water
High installation cost Tankless hot water heaters may come at a higher initial cost but reduce energy costs by 40%. If a storage water heater is being replaced with a tankless one, the size of the electrical wiring or gas pipeline may have to be increased to handle the load and the existing vent pipe may have to be replaced, possibly adding expense to the retrofit installation. Hot Water delays Occasionally there are momentary hot water delays attributed to different causes, including a start-up delay (a “flow delay” created as hot water reaches distant faucets), an intermittent use delay (a short delay between the time when the water begins flowing and when the heater’s flow detector activates the heating elements or gas burner), and a cooler temperature delay (a gap between the cold water temperature, and the coolest warm water temperature that can be achieved with a hot and cold water mix). Recirculation system incompatibility Since a tankless water heater is inactive when hot water
