Energy Costs
Energy Costs | Tankless Water Heater Install | Plumbing | Decherd
Imagine stepping into a Decherd home where hot water never runs out, your utility bills start shrinking, and bulky tanks no longer hog closet space. HEP’s certified pros make that possible with a swift tankless water heater install that’s tailored to your family’s usage and the unique demands of Tennessee’s changing seasons. From the first phone call to the final system test, we handle sizing, venting, gas or electric hookups, and permit paperwork—so all you have to do is enjoy the endless comfort.
Our high-efficiency units heat water on demand, slashing standby energy loss and typically cutting water-heating costs by up to 40%. Add HEP’s upfront pricing, industry-leading warranties, and 24/7 emergency support, and you’ll see why neighbors across Decherd choose us to future-proof their plumbing and pocket long-term savings. Ready for a smarter way to heat water? Let’s get started today.
FAQs
How much can a tankless water heater reduce my energy bills in Decherd?
On average, homeowners in Decherd who switch from a standard electric storage-tank unit to a properly sized electric tankless model see energy-use reductions of 25-40 %. If you are replacing a gas storage heater with a high-efficiency gas tankless unit, savings typically fall in the 15-30 % range. Exact savings depend on your household’s hot-water demand, the unit’s efficiency rating (UEF), and local electricity or natural-gas rates from Duck River Electric or Middle Tennessee Natural Gas.
Is my home’s plumbing compatible with a tankless water heater?
Most Decherd homes can accommodate a tankless system, but three factors must be checked: (1) gas line or electrical service size—gas units need a ¾-inch gas line and up to 200 k Btu/h, while whole-home electric units may require 150-200 amp service; (2) venting—gas models need stainless-steel or PVC venting that terminates outdoors; and (3) water hardness—city water here averages 6–8 grains per gallon; installing a scale-reduction filter is recommended if hardness exceeds 7 GPG.
How long does installation usually take?
A straightforward replacement of a garage-mounted storage tank with a same-fuel tankless unit typically takes 4-6 hours. If upgrades are needed—such as upsizing gas lines, adding electrical circuits, or rerouting venting—plan on 6-10 hours. We handle permits with Franklin County and schedule any required inspections so downtime is minimal.
Do tankless water heaters provide endless hot water?
Yes, within the unit’s flow-rate capacity. A properly sized heater will continue to heat water as it flows, so you won’t run out the way you can with a 40- or 50-gallon tank. However, if multiple fixtures demand more gallons per minute (GPM) than the unit can produce—say, two showers and the washing machine at once—you may experience a temperature drop. During your estimate we calculate peak GPM for your household and recommend the right model or a dual-unit cascade if needed.
What maintenance is required and how much does it cost?
Tankless heaters should be flushed annually (every 6 months if water hardness exceeds 10 GPG) to remove mineral scale. The service involves circulating a vinegar or citric-acid solution for 45 minutes and checking the inline screen filter. Our current maintenance special for Decherd residents is $149 per visit, which protects the heat exchanger warranty and maintains efficiency.
How long do tankless water heaters last compared to traditional tanks?
A quality tankless unit typically lasts 18-25 years—about double the 8-12-year life expectancy of a conventional tank. The extended life is due to stainless heat exchangers and the absence of standing water inside a steel tank, which eliminates most corrosion. Regular maintenance and installing a scale filter or softener can push the service life toward the upper end of that range.