Water Heater Repair in Clarksville, TN
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What Clarksville winters do to a water heater
Groundwater coming into your house is coldest from December through February, when nights here average 30°F. Your water heater has to work harder through that stretch to get the same hot shower, and the burner or heating element runs longer to do it. That extra runtime wears on the thermostat and the heating element in an electric unit, or the burner assembly in a gas one.
Montgomery County has seen 13 winter storms and 103 damaging wind events over the past ten years, and statewide, 20% of households lost power for 24 hours or more in 2024. A gas water heater with a standing pilot will keep making hot water through an outage. One with electric ignition will not light again until the power is back. Either way, when the power drops during a cold snap, you find out fast whether the water coming out of the tap is still hot.
- 30°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, the months homes here need heat
- 20%
- of Tennessee 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 new water heater would cut about $280 a year off hot water for a typical Tennessee home.
Estimates for a typical Tennessee home, compared with an older unit built to the federal minimum, from EIA household energy data and Tennessee fuel prices. Your home will differ.
Repair makes sense when an element, thermostat or gas valve has failed.
Replacement makes sense when the tank itself is leaking.
- Why is my water heater leaking from the bottom?
- The tank itself has likely rusted through and is starting to fail. Water heaters corrode from the inside over years, and once the tank shell is breached, it will not seal itself or stop with a tightened fitting. It could also be a loose drain valve or a fitting at the bottom, which a contractor can check before assuming the tank is done. If it is the tank, replacement is the only real fix, since a leaking tank only gets worse.
- Why won't the pilot light on my water heater stay lit?
- A few things can cause this, and most of them trace back to the thermocouple. That's the small sensor that sits in the pilot flame and tells the gas valve it is safe to stay open. When it wears out or sits slightly out of position, the flame lights but the valve shuts the gas back off within seconds. A dirty pilot orifice or a draft pulling the flame around can do the same thing. A standing pilot doesn't run on electricity, so a power outage isn't the cause here.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless unit are repairable. Mineral buildup on the heat exchanger, a failed igniter, a clogged inlet filter, or a bad flow sensor are all things a contractor can replace or clean out. The exchanger itself is the most expensive part to replace, so a contractor will check that first if the unit is heating water inconsistently. A contractor can look at the specific unit and say whether it makes more sense to repair or replace.


