Water Heater Installation in Portland, ME
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Nine months of hot water demand, and power that doesn't always stay on
Portland homes call on the water heater from September through May. That's nine months where the incoming water is cold and the tank has to work to keep up, not a few weeks in the depths of winter.
More than half of Maine households went at least a day without power in 2024, and Cumberland County has seen 115 winter storms and 145 damaging wind events over the past ten years. A gas water heater with a standing pilot keeps making hot water through an outage. One that relies on electric ignition won't, until the power is back. Whichever type goes in, it has to meet the federal minimum efficiency for its size and draw pattern, since the standard is set separately for each tank volume and usage level rather than as one number for every heater.
- 15°F
- the average winter night, and colder incoming water means longer heating
- 9 months
- September through May, the months homes here need heat
- 54%
- of Maine 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?
- Look at the age of the tank first. Once a tank water heater gets old, repairs start to feel like a losing bet. Rust colored water from the hot tap, rust on the outside of the tank, or water pooling underneath all mean the tank itself is failing, and a tank cannot be repaired, only replaced. If it still makes hot water but runs out fast or makes popping and rumbling noises, sediment has likely built up at the bottom, and a contractor should look at that before it turns into a leak. With winter nights here dropping to 15°F, a tank that fails in the cold months leaves you without hot water at the worst time, so don't wait until it quits.
- Should I switch to a tankless water heater?
- It depends on what you want out of it, not on your current tank failing. A tankless unit heats water only when you're using it, so it won't run out during a long shower or back to back loads of laundry, and it takes up a lot less space than a tank. It needs to be sized correctly for the fixtures it will serve, and a gas tankless unit needs proper venting, so this is a job for a contractor to size and design for your house rather than a straight swap. Worth knowing that most electric tankless units won't run without power, same as most electric tank heaters, and over half of Maine households went at least a day without power in 2024.
- What changes when you install a tankless water heater?
- The biggest change is that you get hot water on demand instead of a limited supply sitting in a tank. The unit only fires when a hot water tap is open, so it isn't spending energy keeping a tank full of water hot all day, and you won't run out partway through back to back showers. The install itself usually means new venting for a gas unit, and sometimes an upgraded gas line or electrical circuit, since a tankless unit draws more at the moment it's running than a tank does. A contractor will look at the gas line, venting path, and water usage in your house to size the unit correctly. It also mounts on a wall instead of sitting on the floor, so it frees up the space the old tank used.