How Long Can A Tankless Water Heater Run Continuously
Find out just how 'endless' the hot water from a tankless system really is.
The Promise of Endless Hot Water
One of the biggest selling points of a tankless water heater is the promise of endless hot water. But can it really run continuously?
The Reality
Yes, theoretically, a gas tankless water heater can run continuously as long as it has a steady supply of gas and electricity. It heats the water as it flows through the unit, so there is no tank to run empty.
The Limitations
While it can run indefinitely, the limitation is the flow rate. If you try to run two showers, the dishwasher, and the washing machine all at once, the unit may not be able to heat that volume of water quickly enough, resulting in a drop in temperature. Proper sizing during installation is crucial.
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