Water Heater Installation in Mequon, WI
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What a Mequon winter asks of your water heater
From October through May, eight months a year, your water heater is working through a heating season that runs longer than warm-weather states ever see. Winter nights here average 16°F, and colder incoming water means more work for the tank to bring it up to temperature.
Power is worth planning around too. Statewide, 18% of households lost power for at least 24 hours in 2024, and the county has seen 18 winter storms and 30 damaging wind events over the past ten years. A gas water heater with a standing pilot keeps working through an outage. One that relies on electric ignition or an electric tank does not, until the power comes back.
Whatever unit goes in has to clear the federal minimum efficiency for storage water heaters, and that minimum isn't one number. It's set by a formula tied to the tank's size and how a home draws hot water, so a larger tank and a smaller one are held to different minimums even within the same type of heater.
- 16°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October 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?
- Look at the age first. Most tank water heaters last about a decade, and once a tank is old, a repair usually just delays the same failure. Rust colored water from the hot tap, a tank that's damp or rusted at the base, or water that never gets fully hot anymore are all signs the tank itself is failing rather than one part inside it. A puddle at the base means the tank has already started to fail and it won't seal back up. If a contractor has been out for the same problem more than once, replacement is worth considering over another repair.
- 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 open a hot tap, so you get hot water on demand instead of storing a tankful of it, and it takes up a lot less space on the wall. The flow rate is limited by the unit's output, so running two showers and a washing machine at once can outpace it depending on the size installed. A contractor can size a unit against how your household actually uses hot water, since that's what decides whether it's worth the switch.
- What changes when you install a tankless water heater?
- The biggest change is that there's no tank storing water anymore, so hot water depends on the unit firing up each time you open a tap rather than drawing down a reserve. Gas tankless units often need a larger gas line and a dedicated vent than a tank model used, so the installation can involve more than swapping one unit for another in the same spot. Where it goes on the wall changes too, since it needs clearance and access for service. A contractor can walk through what your home's gas line and venting can support before deciding on placement.