Water Heater Installation in Hartsville, SC
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What a new water heater needs to handle here
Winter nights in Hartsville average 35°F from December through February, and homes here need heat from November through March, five months a year. A water heater works through all of it, warming ground water that runs colder in those months than the rest of the year.
Power is the bigger risk. Nearly half of South Carolina households lost power for 24 hours or more in 2024, and the county has logged 129 damaging wind events and 3 winter storms over the past ten years. A gas water heater with a standing pilot keeps making hot water through an outage. One with electronic ignition needs power to light, and most electric water heaters just pick up again once power returns. Whatever size and type you choose, it has to meet the federal minimum efficiency set for that tank size, since the standard is not one number but a formula that changes with volume.
- 35°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?
- Most tanks last a decade or so, and age is the first thing to check. Look at the water around the base of the tank. Rust colored water, a tank that's damp or wet at the bottom, or water that takes noticeably longer to heat all point the same way. A leak at the tank itself, not a fitting or valve, means it needs to be replaced rather than repaired. If the unit is old and starting to act up, a contractor can tell you whether it's worth fixing or worth swapping out.
- Should I switch to a tankless water heater?
- It depends on what you want out of it, not on any rule that says tankless beats tank. A tankless unit heats water as it flows through, so you don't run out partway through a shower with two loads going. It also takes up less space than a tank. Against that, it costs more upfront and may need changes to your gas line or venting to install. A contractor can look at your house 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, which means no more running out, but also no reserve if the unit itself has a problem. Installing one usually means new venting, since tankless units vent differently than a tank. Gas fired tankless units often need a larger gas line to supply enough fuel for the higher output burner. Electrical requirements can change too, depending on the model. None of this makes tankless a bad choice, but it does mean the installation is more involved than swapping one tank for another, and a contractor needs to check your gas line, venting and electrical setup before quoting the job.