Water Heater Installation in Manitowoc, WI
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A new water heater has to handle a long, cold season here
Manitowoc County homes need heat nine months of the year, September through May, and winter nights average 15°F from December through February. Water coming into the tank runs cold right along with the air outside, so a new unit is sized and installed with that long a season in mind, not just a mild stretch of it.
Storms are part of the picture too. The county has seen 25 winter storms and 52 damaging wind events over the past ten years, and across Wisconsin 18% of households lost power for at least 24 hours in 2024. A tank that comes back on by itself once power returns matters here, and a standing pilot model does not need power at all to relight. Whatever size tank goes in, it also has to meet the federal efficiency minimum set for that size, since the standard is not one number but a formula that changes with the tank's rated volume.
- 15°F
- the average winter night, and colder incoming water means longer heating
- 9 months
- September through May, the months homes here need heat
- 18%
- of Wisconsin 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 $330 a year to run in Wisconsin compared with an electric water heater.
Estimates for a typical Wisconsin home, from EIA household energy data and Wisconsin fuel prices. Your home will differ.
- How do I know it's time to replace my water heater?
- Start with the age. Most tanks last 10 to 15 years, and if yours is in that range, a repair now just delays the same decision. Look for rust colored water from the hot tap, a tank that's damp or wet at the base, or water that never gets as hot as it used to. Any sign of water pooling around the tank means the tank itself is failing, and that's a replacement, not a repair.
- Should I switch to a tankless water heater?
- It depends on what you want out of it, not on your home being any particular type. A tankless unit heats water only when you open a hot tap, so it won't run out during a long shower the way a tank can, and it takes up far less space. Winters here run cold enough, December through February averaging 15°F, that the incoming water is colder too, which means the unit works harder to reach the same temperature at the tap. A contractor can look at your household's hot water use and tell you whether the switch makes sense for the plumbing you already have.
- What changes when you install a tankless water heater?
- The biggest change is that hot water no longer runs out. A tank holds a fixed supply and once it's used up you wait, but a tankless unit heats water on demand as long as a hot tap is open. It also needs its own venting and gas or electrical setup, which is often different from what your old tank used, so the installation itself involves more than swapping one unit for another. A contractor will need to check your home's gas line or electrical capacity before sizing the right unit for you.