Hot Water
Hot Water | Tankless Water Heater Install | Plumbing | Decherd
Never wait on a lukewarm shower again. HEP’s seasoned plumbers bring Decherd families the comfort of endless, on-demand hot water with a professional tankless water heater install. We remove the bulky tank, upgrade your gas or electric lines if needed, and calibrate the system so you enjoy instant heat, lower utility bills, and reclaimed storage space—all in a single visit.
From your first call to the final system check, our local techs handle every detail with the courtesy and transparency Tennessee homeowners expect. Whether you’re replacing a failing tank or building your dream bath suite, trust HEP to deliver a clean, code-compliant installation backed by industry-leading warranties and 24/7 support. Reach out today and feel the difference of truly limitless hot water.
FAQs
What advantages does a tankless water heater offer over a traditional storage tank in Decherd?
Tankless units heat water on demand, eliminating standby heat loss and saving 24–40 % on energy bills compared with storage tanks. They deliver endless hot water, take up far less space, and typically last 20 years or more—about twice the life of a tank. In Decherd, where utility costs trend above the national average, those savings add up quickly. A tankless heater is also less prone to leaks because it holds no stored water, reducing the risk of water damage in your home.
How do I determine the right size (flow rate and temperature rise) for my Decherd home?
Sizing is based on two factors: (1) total flow rate for the fixtures you might use at one time (showers, washing machine, etc.) and (2) the required temperature rise, which in Decherd averages 75 °F because our groundwater is about 55 °F. We calculate gallons per minute (GPM) for each fixture, add them together, and select a unit that can meet that GPM at the 75 °F rise. During an on-site visit we measure your existing fixtures and usage patterns to ensure the unit you purchase never runs out of hot water, even on the coldest winter morning.
Can my existing gas or electrical service handle a tankless unit, or will upgrades be needed?
Most gas-fired tankless heaters require a ¾-inch gas line and up to 200,000 BTU input—higher than many storage tanks. If your current gas line is undersized, we can upgrade it during installation. Electric models often need 120–150 amps dedicated capacity; many homes need a panel upgrade before installation. Our technicians perform a load calculation during the estimate so you know exactly what, if any, modifications are necessary before we begin work.
What does the installation process involve and how long does it take?
A typical residential installation in Decherd takes 4–8 hours. We (1) shut off water, gas, and power to the old heater; (2) drain and remove the tank; (3) mount the new tankless unit on a wall—often freeing up floor space; (4) run new venting per 2021 International Fuel Gas Code, adopted by Tennessee, ensuring termination 3 ft from windows and property lines; (5) upsize gas or electrical service if required; (6) connect water lines with isolation valves for future maintenance; and (7) commission the unit, checking flow, temperature, and combustion. You get hot water the same day, and we haul away and recycle your old tank.
Are there rebates or tax incentives for installing a tankless water heater in Decherd or Tennessee?
Yes. Tennessee Valley Authority (TVA) occasionally offers rebates for ENERGY STAR certified gas tankless models—typically $200–$300. Federal tax credits under the Inflation Reduction Act cover 30 % of the cost, up to $600, for gas units rated at least 0.95 UEF and 30 % up to $2,000 for qualifying electric heat-pump water heaters. We provide the model numbers and documentation you need, and our office staff can help you file the paperwork so you don’t miss out on available savings.
What maintenance does a tankless water heater need, and do you service what you install?
Annual service is recommended: flushing the heat exchanger with a vinegar solution to remove mineral scale, cleaning the inlet filter, and checking the vent and combustion settings. Decherd’s water hardness averages 6–7 grains per gallon, so descaling once a year keeps efficiency high and preserves the warranty. We offer one-time service or affordable maintenance plans that include priority scheduling, discounted parts, and full system health checks. All units we install come with a manufacturer’s warranty (usually 15 years on the heat exchanger) and our own one-year labor warranty.