Water Heater Installation in Shakopee, MN
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Eight months of cold groundwater, and a grid that doesn't always hold
Shakopee homes need heat from October through May, and that means eight months where the water coming into your tank starts out cold. A water heater sized for a shorter season somewhere warmer is working harder here every time someone runs a shower or starts the dishwasher.
Scott County has seen 35 winter storms and 53 damaging wind events over the past ten years, and across Minnesota 13% of households lost power for at least 24 hours in 2024. If your new water heater runs on gas with a standing pilot, it will keep making hot water through an outage. If it's electric, or gas with electronic ignition, it will need the power back before it fires again. Either way, it's worth knowing which one you're getting installed.
The federal minimum efficiency for storage water heaters isn't one number. It's set by a formula based on the tank's rated volume, and it's different across four draw patterns, so two tanks of the same type but different sizes have to meet different minimums. The size you need for your household is part of what determines what the installation has to meet.
- 10°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 13%
- of Minnesota 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 $360 a year to run in Minnesota compared with an electric water heater.
Estimates for a typical Minnesota home, from EIA household energy data and Minnesota fuel prices. Your home will differ.
- How do I know it's time to replace my water heater?
- Age is the biggest sign. Most storage water heaters are built to last around a decade, so if yours is getting up there and you're seeing rusty water, water pooling around the base, or it's not keeping up with hot water like it used to, replacement is worth looking at over another repair. A tank that's rusting from the inside won't be fixed by a new part. Once a heater is leaking from the tank itself, that's the end of it.
- Should I switch to a tankless water heater?
- It depends on what you want from your hot water, not on your old tank failing. Tankless units heat water on demand instead of storing it, so you don't run out during back to back showers, and they take up a fraction of the space a tank does. They also need different venting and gas or electric supply than a tank, so switching is a bigger job than swapping one tank for another. A contractor can tell you what your home's gas line, venting, and electrical setup would need to make the switch work.
- What changes when you install a tankless water heater?
- The biggest change is what feeds it. Tankless units need enough gas flow or electrical capacity to heat water instantly, which is more demand at once than a tank ever asks for, so the gas line or circuit sometimes has to be upsized. Venting changes too, since tankless units vent differently than a standard tank and usually need new venting run to the outside. Because of that, a tankless install is more involved than a straight tank replacement, and like any water heater install it still needs a permit and inspection from the local building office.