Water Heater Installation in Warren, MI
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Warren asks a lot of a water heater
Your water heater runs through eight months of heating season here, October through May, with winter nights averaging 21°F. Cold ground water means the tank works harder to bring it up to temperature, and it does that for most of the year.
Power is part of the picture too. Statewide, more than a third of households went at least 24 hours without power in 2024, and Macomb County has logged 16 winter storms and 99 damaging wind events over the past ten years. A gas water heater with a standing pilot will keep working through an outage. One with electronic ignition will not light until power is back. Either way, a new installation should account for the odds of losing power here, not just the odds of cold weather.
Federal efficiency minimums for storage water heaters are not one number. They are set by a formula tied to the tank's rated volume, and that formula is applied separately across four different draw patterns. Two tanks of the same type can face different minimums just because they hold different amounts of water, so the right minimum depends on the size you need, not the type alone.
- 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?
- The clearest sign is water pooling around the base of the tank. That is usually the tank itself failing, not a loose fitting, and once a tank starts to go it does not get better. Rusty hot water or a tank that will not get hot anymore are the other signs worth acting on. If your water heater is a standing pilot model, it will relight itself and keep working through a power outage, so that alone is not a reason to replace it.
- Should I switch to a tankless water heater?
- It depends on what you want out of it, not on whether your current tank is failing. A tankless unit heats water only as you use it, so you are not paying to keep a tank of water hot all day, and it will not run out partway through a shower the way a tank can. Winters here run cold enough, down to 21°F on average overnight from December through February, that a tankless unit has to work harder to bring incoming water up to temperature, which a contractor will account for when sizing the unit. The switch also means giving up storage capacity for instant, continuous supply, so it comes down to whether that trade suits your household.
- What changes when you install a tankless water heater?
- The biggest change is venting. A tankless unit vents differently than a tank, often needing new venting run to the outside, and the gas line sizing may need to change too since the unit draws more gas while it is running. Electrical or gas connections typically need to be rerouted to match where the new unit sits, since tankless units mount on a wall rather than sitting on the floor like a tank. A licensed contractor will look at your home's existing gas line, venting, and electrical before quoting the change, since what needs to move depends on how the house is set up now.