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Replace a 40-Gallon Water Heater With Tankless?
A 40-gallon tank stores heated water, while a tankless heater heats water as it flows, so you’ll need to consider how many fixtures and appliances may run at the same time. Add the flow rates of the fixtures you expect to use together, and consider the temperature rise needed to heat your incoming water to the desired temperature.
Our 7.5 GPM natural gas tankless water heater for indoor installation is one option to consider when comparing tankless units. A qualified installer can help you determine whether its capacity suits your simultaneous demand and local incoming-water temperature.
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Tankless Water Heater, 7.5 GPM, Natural Gas, Indoor Installation
Tankless equipment eliminates the storage tank, but you should still compare the installed cost and expected maintenance with those of another tank-style heater. Your household’s usage, local water conditions, and the complexity of the conversion can all affect which choice makes sense.
Ask your installer about a maintenance schedule and whether your water conditions call for periodic descaling. Accessible shutoff and service connections can make future maintenance easier, so discuss their placement during installation planning.
The cost depends on the equipment, labor, permits, and any changes needed to gas, venting, electrical, or plumbing connections. Request an itemized estimate from a qualified installer after an assessment of your home.
Not all plumbers are against tankless heaters, but some may raise concerns about conversion costs, sizing, maintenance, or installation requirements. Ask your installer to compare those considerations with a replacement tank heater for your particular home.
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