Water Heater Installation in Warrensburg, MO
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Your water heater works through a long, cold season here
Warrensburg winter nights average 24°F from December through February, and homes here need heat October through April, seven months a year. Cold water coming into the tank makes the burner or the heating element work harder to bring it up to temperature.
Power is worth planning around too. Nineteen percent of Missouri households went at least 24 hours without power in 2024, and the county has logged 10 winter storms and 61 damaging wind events over the past ten years. A gas water heater with a standing pilot keeps making hot water when the power goes out. One with electronic ignition will not, until the power comes back. Whatever you install, the federal minimum efficiency it has to meet is not one number. It is set separately depending on the tank's size and how the household draws hot water.
- 24°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, the months homes here need heat
- 19%
- of Missouri 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 Missouri compared with an electric water heater.
Estimates for a typical Missouri home, from EIA household energy data and Missouri fuel prices. Your home will differ.
- How do I know it's time to replace my water heater?
- The clearest sign is age, along with how the tank is holding up. Once a tank water heater gets old, the tank itself starts to weaken from the inside. Look for rust-colored water, a tank that's damp or wet around the base, or water that takes longer to heat than it used to. If you're calling for a repair on the same unit more than once, replacing it usually makes more sense than fixing it again. With winter nights here averaging 24°F, a failing water heater is worth replacing before it fails outright rather than after.
- Should I switch to a tankless water heater?
- It depends on what you want out of it, not on whether one is better than the other in every case. A tankless unit heats water only when you're using it, so you don't run out of hot water partway through a shower or a load of dishes. It also takes up much less space than a tank. But it costs more upfront, and it needs a strong enough gas line or electrical circuit to work, which not every home already has. A contractor can look at your home and tell you what switching would actually involve.
- What changes when you install a tankless water heater?
- The biggest change is that you stop storing hot water and start heating it on demand. There's no tank sitting full of water waiting to be used, so you also free up the space it used to take. Because it heats water as it flows through, a tankless unit needs enough gas supply or electrical capacity to bring the water up to temperature fast, which sometimes means upgrading the gas line, venting, or wiring depending on what's already there. It also means no standing pilot or tank losing heat overnight, so it isn't drawing energy when nobody's using hot water. A contractor can tell you what your specific home would need to make the switch.


