THE SHORT ANSWER
Tankless heaters warm water on demand and can reduce standby energy losses, but the savings depend on your water use, energy source and model. They generally cost more to install and some homes need gas, venting or electrical upgrades. Compare installed costs, maintenance, efficiency and your family's hot-water habits before deciding.
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Read the related VIP plumbing guideEducational information, not a remote diagnosis. The right repair requires an onsite assessment. Plumbing conditions, safety concerns and local requirements vary. Stop using unsafe equipment and seek qualified help for gas, sewage, electricity or flooding hazards. See how we develop and update our homeowner guides.
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