Water Heater Installation in Harrisburg, PA
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What a Harrisburg winter asks of a water heater
Groundwater coming into the tank is cold here, and it stays cold for eight months, October through May. Your water heater works harder through most of the year than it gets credit for, and on nights that average 24°F, the incoming water is about as cold as it gets. A tank or unit sized for a milder place will fall short here.
Power is part of the picture too. Pennsylvania saw 15% of households lose power for 24 hours or more in 2024, and Dauphin County has logged 18 winter storms and 149 damaging wind events over the past ten years. A new installation should account for what happens to the heater when the power goes out on a cold night, not just how it runs when everything is normal. Federal efficiency minimums for storage water heaters are set by a formula tied to the tank's size, so the number that applies to your unit depends on its rated volume, not on a single standard that fits every tank.
- 24°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 15%
- of Pennsylvania 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. Most tank water heaters last about a decade, and after that the tank itself starts to weaken from the inside. Look for rust-colored water from the hot tap, a tank that's damp or rusted around the base, or water that doesn't get as hot as it used to. If you're calling a plumber out for the same unit more than once a year, replacing it usually makes more sense than paying to patch it again.
- Should I switch to a tankless water heater?
- It depends on what you want from it, not just whether your current one is old. A tankless unit heats water as it flows through, so you're not storing and reheating a tank of water all day, and it won't run out of hot water partway through a shower the way a tank can. It costs more to install than a like-for-like tank replacement, and if your home runs on gas, it may need a larger gas line to supply the unit. A contractor can look at your home's gas line and hot water use and tell you whether the switch makes sense for your house.
- What changes when you install a tankless water heater?
- The biggest change is that hot water gets made on demand instead of stored ahead of time. That means no tank sitting full of hot water waiting to be used, and no standby heat loss from a tank cooling down between uses. Tankless units also need venting suited to the unit, which is often different from what a tank used, so the installation may involve new venting work rather than just swapping one unit for another. A contractor can walk through what your home's gas line, venting, and water lines need for the switch.