Water Heater Installation in Detroit, MI
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Eight months of cold, and storms that cut power
Wayne County needs heat from October through May, eight months a year, with winter nights averaging 21°F. A water heater doing that job sits through a long stretch of cold, and it has no season off to rest.
The county has seen 14 winter storms and 142 damaging wind events over the past ten years, and across Michigan over a third of households lost power for at least 24 hours in 2024. An electric water heater stops cold in an outage. A gas unit with electronic ignition needs that power too. A gas unit with a standing pilot is the one type that keeps making hot water when the lines go down. When you're sizing a new tank, the federal efficiency minimum isn't one number. It's set by a formula tied to the tank's rated volume, applied across four different draw patterns, so two tanks of the same type but different sizes are held to different minimums.
- 21°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 34%
- of Michigan 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
A heat pump water heater would save about $410 a year to run in Michigan compared with an electric water heater.
Estimates for a typical Michigan home, from EIA household energy data and Michigan fuel prices. Your home will differ.
- How do I know it's time to replace my water heater?
- Age is the first thing to check. Most tank water heaters have a working life span, and once a unit is old enough that it's failed once, another failure isn't far behind. Look for rust-colored water from the hot tap, water pooling around the base of the tank, or a tank that makes popping and rumbling sounds when it heats. Any sign of water on the floor near the tank means the tank itself is failing, and that's a replacement, not a repair. If the problem is a part like the thermostat or the heating element and the tank itself is sound, a contractor can often fix it instead of replacing the whole thing.
- Should I switch to a tankless water heater?
- It depends on what you want out of it, not on whether tank heaters are somehow becoming obsolete. A tankless unit heats water on demand instead of storing and reheating a tankful, so you don't run out of hot water partway through a long shower or back to back loads of laundry. It also takes up much less space than a tank. What it doesn't do is deliver hot water instantly at the tap, and it costs more upfront than a tank heater of the same capacity. A contractor who looks at your home's gas line and hot water use can tell you whether a tankless unit fits what you need.
- What changes when you install a tankless water heater?
- The biggest change is what's on the wall instead of what's on the floor. A tankless unit mounts on a wall and takes up a fraction of the space a storage tank does, which matters if you're trying to free up a closet or utility room. It also needs a gas line sized for its higher burner output, and venting built for its exhaust, so the swap usually means more than just disconnecting the old tank and connecting the new unit. Federal efficiency minimums are set per size and draw pattern rather than as one number, so the tankless model that fits your household's hot water use may not be the same size someone else needs. A contractor can size the unit and the gas line to your home before installing it.


