Water Heater Installation in Concord, NH
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Concord winters put a real load on a water heater
Winter nights here average 14°F from December through February, and homes need heat from September through May, nine months of the year. A water heater works through that whole stretch alongside the furnace, not just in the coldest weeks.
Power is part of the picture too. Statewide, 22% of households went at least 24 hours without power in 2024, and the county has logged 35 winter storms and 79 damaging wind events over the past ten years. That is worth weighing when you decide between a tank and a tankless unit, and whether a model that runs without power fits your home. Whatever you install has to meet the federal minimum efficiency set for its size, and that minimum is set separately for each tank volume, so the number that applies to your new water heater depends on the size you choose.
- 14°F
- the average winter night, and colder incoming water means longer heating
- 9 months
- September through May, the months homes here need heat
- 22%
- of New Hampshire households lost power for a day or more in 2024, and a heater with an electric element or electric ignition stops without it
NOAA nClimDiv, 1991–2020 normals
- How do I know it's time to replace my water heater?
- The clearest sign is age. Once a tank water heater passes ten years, the tank itself has likely started to weaken from the inside, and that is not something a repair fixes. Other signs point the same direction. Water that takes longer to heat, rust-colored water from the hot tap, or a tank that's rusting or damp at the base. A contractor can check the tank and the fittings and tell you whether repair still makes sense or whether the tank is past that point.
- Should I switch to a tankless water heater?
- That depends on what you want from your hot water and what your home can support, so it's worth having a contractor walk through both with you. A tankless unit heats water as it runs rather than storing it, so it doesn't run out during a long shower or back to back showers. It also takes different gas or electric supply than a tank does, and venting is different too, so switching usually means more than swapping one unit for another. A contractor can look at your gas line, your electrical panel, and where the unit would go before telling you if it fits your house.
- What changes when you install a tankless water heater?
- The biggest change is that hot water is made on demand instead of stored and kept warm. There is no tank sitting full of hot water waiting to be used, and that changes what space the unit needs and where it can go, often on a wall instead of on the floor. It can also mean a different gas line size or a dedicated electrical circuit, depending on the model, and different venting than a tank uses. A contractor can tell you what your specific home would need to make the switch.