Tankless Water Heater
Tankless Water Heater | Plumbing | Maynardville
Imagine stepping into a shower that never runs cold and watching your energy bills shrink month after month—HEP makes that a reality for Maynardville homeowners with high-efficiency tankless water heaters. Our certified technicians swap out bulky tanks for sleek, on-demand units that deliver endless hot water, free up storage space, and last nearly twice as long as traditional systems. From the first consultation to the final test run, we treat your home with the care it deserves, laying protective mats, cleaning as we go, and double-checking every connection so you can start enjoying instant comfort the same day.
Behind every flawless installation is our 24/7 support crew, ready to troubleshoot by phone or roll a fully stocked truck to your door at a moment’s notice. Whether you’re replacing an aging heater or building a new home, we tailor sizing, venting, and water line upgrades to your family’s exact needs, all backed by transparent pricing and a no-surprises guarantee. It’s reliable, efficient, and expertly crafted—everything great Maynardville plumbing should be.
FAQs
How does a tankless water heater work and what are the benefits for homeowners in Maynardville?
Unlike a storage-tank heater that keeps 40-80 gallons of water hot all day, a tankless (or on-demand) unit senses flow when you open a tap and instantly heats water as it passes over a high-efficiency heat exchanger. Because no standby tank is kept hot, homes in Maynardville typically see energy savings of 20-35 %. You also gain unlimited hot-water capacity—ideal for large families or back-to-back showers—and free up roughly 10–15 sq ft of floor space. Modern units have replaceable parts, so their average life span is 18–20 years, nearly double that of a conventional heater.
What size tankless unit do I need for my Maynardville home, and how is it determined?
Proper sizing is based on two factors: (1) total flow rate you expect to use at one time (gallons per minute), and (2) temperature rise—how much the unit must heat incoming water to reach 120 °F. In Maynardville groundwater averages 55–60 °F, so the heater must raise the temperature about 60 °F. Most households here need a 7–9 GPM gas unit or a 5–7 GPM electric model to run two showers and a washing machine simultaneously. During our in-home estimate we count fixtures, measure incoming water temperature, check gas or electric service capacity, and recommend the exact BTU or kW rating that meets your peak demand without overspending on an oversized appliance.
Are tankless water heaters compatible with the well water and hard water commonly found in Union County?
Yes, but you must address mineral content. Well and municipal water around Union County often tests at 10–15 grains per gallon—a level considered moderately hard. Calcium deposits can coat the heat exchanger and reduce efficiency within a year. We recommend installing a sediment pre-filter and, for hard-water homes, either a traditional softener or a scale-inhibiting filter. Annual descaling with a white-vinegar or citric-acid solution (a 45-minute service we provide) keeps the warranty valid and restores peak performance.
What is involved in converting from a traditional tank to a tankless water heater, including permitting in Maynardville?
1. Site evaluation: We verify venting path, gas line size (if using natural gas or propane), or electrical amperage (for electric units). 2. Permit: Union County Building & Zoning requires a mechanical/plumbing permit and, for gas models, a pressure test inspection. We pull these permits on your behalf. 3. Utility upgrades: Older homes may need a ¾-inch gas line or a dedicated 240-V, 120-A circuit. We coordinate with Powell-Clinch Utility District or Knoxville Utilities Board when service upgrades are required. 4. Installation: The old tank is drained and removed, new mounting brackets are set on the wall, stainless-steel venting is routed through an exterior wall or roof, and water/gas/electrical connections are made. 5. Commissioning: We calibrate temperature, check for leaks, flush the unit, and register the manufacturer warranty. Most conversions are completed in one business day.
How much can I expect to pay for a tankless water heater installation in Maynardville, and are there any local rebates or tax incentives?
Installed prices in the Maynardville area run $3,000–$4,500 for a mid-range gas unit and $2,200–$3,200 for an electric model, including permits and removal of the old tank. Factors such as gas line upsizing, long vent runs, or the need for a water softener can add $300–$900. Powell-Clinch Utility District periodically offers a $150 bill credit for ENERGY STAR® gas units, and TVA’s EnergyRight program provides low-interest financing for qualifying electric conversions. In addition, the 25C Federal Tax Credit allows you to deduct 30 % of the equipment and labor cost (up to $600) for units with ≥0.95 UEF purchased through 2032.
What maintenance does a tankless water heater require, and do you offer service plans in the Maynardville area?
Manufacturers call for an annual maintenance visit that includes: (1) flushing the heat exchanger with a vinegar or citric-acid solution to remove scale, (2) inspecting the combustion chamber or heating elements, (3) cleaning the inlet water filter, and (4) verifying gas pressure or electrical connections. Skipping these steps can void the 10- to 15-year heat-exchanger warranty. Our ‘Maynardville Comfort Plan’ costs $139 per year for gas units and $109 for electric models and covers the full maintenance visit, priority scheduling, no-trip fees, and a 10 % discount on any repairs. Most homeowners recover the plan cost through energy savings and extended equipment life.