Water Heater Installation in Shelbyville, KY
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What a Shelby County winter asks of a water heater
Homes here need heat from October through April, seven months of the year, and winter nights average 26°F. A water heater is working through most of the year in those conditions, not just a few cold weeks.
Power is part of the picture too. Nearly a quarter of Kentucky households lost power for 24 hours or more in 2024, and the county has seen 11 winter storms and 50 damaging wind events over the past ten years. A gas water heater with a standing pilot keeps making hot water through an outage. One that relies on an igniter will not light until power is back. Whatever you install, it has to meet the federal minimum efficiency set for its tank size, since the standard is applied separately by volume and draw pattern rather than as one number for every unit.
- 26°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, the months homes here need heat
- 24%
- of Kentucky 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 $270 a year to run in Kentucky compared with an electric water heater.
Estimates for a typical Kentucky home, from EIA household energy data and Kentucky fuel prices. Your home will differ.
- How do I know it's time to replace my water heater?
- Age and how it's failing are the two things to look at. Every tank has a rated life, and once it's past that age the tank itself can start to rust through, which shows up as water pooling at the base. Lukewarm water, water that runs out fast, or a tank that's making popping or rumbling noises are also signs it's wearing out inside. If yours is showing any of these signs, replacing it before it fails outright means you get to choose the timing instead of dealing with a flooded closet or garage.
- Should I switch to a tankless water heater?
- It depends on what you want from the switch, since tankless units solve a different problem than tank units do. A tankless heater doesn't store hot water, it heats it as it flows through, so you don't run out partway through a long shower or back to back showers. It also takes less space than a tank. What it needs in return is often a gas line and venting sized for it, and sometimes an electrical upgrade, so a contractor should look at your home's setup before you decide. If your household never runs out of hot water now, a tank replacement may serve you just as well.
- What changes when you install a tankless water heater?
- The unit mounts on a wall instead of sitting on the floor, and it needs its own venting run to the outside, separate from what a tank heater used. Gas tankless units usually need a larger gas line than the tank they're replacing, because they draw more gas for a short burst to heat water on demand. Electrical tankless units draw enough power that they often need a dedicated circuit sized for that unit. Because of these changes, the installation is more involved than swapping one tank for another, and a contractor will need to check the gas line, venting path and electrical panel before the job is priced.