On Demand Hot Water
Using the latest in gas technology, it heats water on-demand and delivers an endless supply of hot water for as long as you need it, offering personalized control for your convenience, comfort and safety. It turns on when you open a hot water faucet and turns off when you close the faucet, so the energy that is consumed is only for the hot water that is being used. Since there is no storage of hot water and thus no constant heating and re-heating of stored hot water, you’re not wasting energy heating water when you don’t need it.
Demand water heaters provide hot water only as it is needed. They don't produce the standby energy losses associated with storage water heaters, which can save you money. When a hot water tap is turned on, cold water travels through a pipe into the unit. Either a gas burner or an electric element heats the water. As a result, demand water heaters deliver a constant supply of hot water. You don't need to wait for a storage tank to fill up with enough hot water. However, a demand water heater's output limits the flow rate.
Typically, demand water heaters provide hot water at a rate of 2–5 gallons per minute. Gas-fired demand water heaters produce higher flow rates than electric ones.
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