Water Heater Installation in Florence, SC
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What Florence County winters and storms ask of a water heater
Winter nights here average 36°F from December through February, and homes run heat from November through March, five months a year. A new water heater has to keep up with that stretch same as the furnace does.
Power is the bigger question in this county. Across South Carolina, 45% of households lost power for at least 24 hours in 2024, and the area has logged 97 damaging wind events and 3 winter storms over the past ten years. That is worth asking about when choosing between a gas and an electric unit. On the efficiency side, the federal minimum is not one number. It is a formula based on the tank's rated volume, applied separately across four draw patterns, so two tanks of different sizes can face different minimums even when they are the same type.
- 36°F
- the average winter night, and colder incoming water means longer heating
- 5 months
- November through March, the months homes here need heat
- 45%
- of South Carolina 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 $300 a year to run in South Carolina compared with an electric water heater.
Estimates for a typical South Carolina home, from EIA household energy data and South Carolina fuel prices. Your home will differ.
- How do I know it's time to replace my water heater?
- The clearest sign is water around the base of the tank. That means the tank itself is failing, and no repair fixes a leaking tank. Rust-colored water, a tank that's making rumbling or popping noises, or water that won't get hot anymore are also signs the unit is on its way out. If your water heater is over ten years old and giving you any of these problems, replacing it is usually the better move over another repair.
- Should I switch to a tankless water heater?
- It depends on what you want from your water heater, not on your old one failing. A tankless unit heats water only when you run a tap, so it doesn't hold a standing supply that can run out during a long shower or back to back loads of laundry. It also takes up much less space than a tank. Whether it's worth switching for your house is something a contractor can walk through with you, since it changes how the unit connects to your gas or electric supply.
- What changes when you install a tankless water heater?
- The biggest change is that you stop running out of hot water, since the unit heats it on demand instead of storing a limited supply. It also needs different venting and gas or electric connections than a tank did, so the installation involves more than swapping one unit for another. A contractor will need to look at your home's existing setup to size the unit correctly and confirm what the connections require.