Water Heater Installation in Parkville, MO
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What a water heater in Parkville has to handle
Winter nights average 22°F here from December through February, and homes here run their heat from October through April, seven months of the year. That's most of the year a new water heater is working alongside a furnace, not on its own.
Power is part of the picture too. Missouri saw 19% of households lose power for 24 hours or more in 2024, and Platte County has logged 10 winter storms and 68 damaging wind events over the past ten years. A gas water heater with a standing pilot keeps working through an outage. One with electronic ignition or an electric tank will not come back on until the power does, though most will restart on their own once it's back. New units also have to meet the federal efficiency minimum, which is set by a formula based on the tank's size rather than one number for every heater.
- 22°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?
- Water pooling at the base of the tank is the clearest sign, since that usually means the tank itself has failed and repair is not an option. Rusty water from the hot side, an aging tank, or a unit that can not keep up with the household anymore are also reasons to plan a replacement. If the tank is still fairly new and it is dry underneath, a repair may be enough. A contractor can check the tank and the anode rod and tell you which situation you are in.
- Should I switch to a tankless water heater?
- It depends on what you want out of a water heater, not on one being better than the other in every home. Tankless units heat water as it flows through rather than storing it, so they do not run out of hot water the way a tank can during heavy use. They also take up less space and tend to last longer than a storage tank. Against that, they cost more to install and need a contractor to check that the gas line and venting can support one. If your current tank is failing and you are deciding what to put in its place, a contractor can look at your home's setup and tell you whether tankless makes sense there.
- What changes when you install a tankless water heater?
- The biggest change is that you get hot water on demand instead of drawing from a stored tank, so there is no waiting for a tank to refill after heavy use. The unit itself is much smaller and usually goes on a wall, which frees up the floor space a storage tank used to take. Gas tankless units often need a larger gas line than the old tank did, and the venting is different too, so this is not always a straight swap. A contractor will need to check your home's gas supply and venting before installing one to confirm what has to change.