Water Heater Installation in Indianapolis, IN
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A new water heater has to work all year in Marion County
Winter nights here average 23°F from December through February, and cold groundwater means your water heater works harder to bring incoming water up to temperature. It runs that way eight months a year, October through May, whenever the house calls for heat and hot water at the same time.
Power doesn't always stay on to run it. Marion County has seen 12 winter storms and 140 damaging wind events over the past ten years, and statewide, 17% of households went at least a day without power in 2024. A gas water heater with a standing pilot keeps making hot water through an outage. One with electric ignition will not, until power is back. Whichever type you install, it has to meet the federal minimum efficiency for its size, a standard that is set separately for each tank volume rather than one number for every unit.
- 23°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 17%
- of Indiana 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 Indiana compared with an electric water heater.
Estimates for a typical Indiana home, from EIA household energy data and Indiana 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 8 to 12 years, and once you're past that, a repair is just delaying the next problem. Rust-colored water from the hot tap, a tank that's damp or rusted at the seams, or water pooling underneath are all signs the tank itself is failing, and a tank can't be repaired, only replaced. If it's still making hot water but taking longer to recover or making popping and rumbling sounds, sediment has likely built up on the bottom, and that's a sign it's working harder than it should.
- Should I switch to a tankless water heater?
- It depends on what you want out of it, not on your old tank failing. A tankless unit heats water only when you open a hot tap, so you get endless hot water instead of running out after a long shower or a sink full of dishes. It won't sit there losing heat overnight the way a stored tank does. The tradeoff is that installation is more involved than swapping one tank for another, since venting and gas or electrical supply often need to change, so a contractor will need to look at your setup to say what that involves for your house.
- What changes when you install a tankless water heater?
- The unit itself is smaller and mounts on a wall instead of taking up floor space. Because it fires up on demand rather than holding a tank of hot water, it needs venting rated for that kind of unit, and gas or electrical supply is often sized differently than what a tank used. Some homes also need a new water line configuration depending on where the unit goes. A contractor can look at your existing setup and tell you exactly what needs to change for your house.