Water Heater Installation in Duncan, OK
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What a Duncan water heater has to handle
Winter nights in Stephens County average 31°F from December through February, and homes here run heat six months of the year, November through April. Cold groundwater feeding the tank makes it work harder to reach a set temperature, and it does that work every day, all winter.
The county has seen 67 damaging wind events and 6 winter storms over the past ten years, and a quarter of Oklahoma households lost power for 24 hours or more in 2024. A gas water heater with a standing pilot will keep working through an outage. One with electric ignition will not light until power is back. Whatever gets installed, it has to meet the federal minimum efficiency for its size, since the standard is set separately for each tank volume.
- 31°F
- the average winter night, and colder incoming water means longer heating
- 6 months
- November through April, the months homes here need heat
- 25%
- of Oklahoma 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
- How do I know it's time to replace my water heater?
- Once a tank water heater is over ten years old and starts showing rust in the water or around the tank base, replacing it is usually the right call rather than repairing it. Other signs are a tank that makes rumbling or popping noises, water that takes longer to heat than it used to, or any water pooling under the unit. A leaking tank will not stop leaking, and it can fail completely without warning, so that one sign alone is reason enough to plan a replacement now instead of waiting.
- Should I switch to a tankless water heater?
- It depends on what you want from your hot water and what your home can support, not on any one rule that fits everyone. A tankless unit heats water only when you turn on a tap, so it does not run out the way a tank can during heavy use like back to back showers. Switching usually means changes to the gas line, venting, or electrical supply, since tankless units have different requirements than the tank they replace. A contractor can look at your home and tell you what that switch would actually involve.
- What changes when you install a tankless water heater?
- The biggest change is that you get hot water on demand instead of drawing down a stored tank, so there is no waiting for a tank to refill after heavy use. To make that work, the unit usually needs a larger gas line or a dedicated electrical circuit, and venting built for its higher heat output. Tankless units also mount on a wall instead of sitting on the floor, which frees up the space the old tank used. A contractor will check your home's gas, electrical, and venting setup to see what needs to change for the install.