- HEP Plumbing
- Lower Energy Bills

Lower Energy Bills
Lower Energy Bills | Tankless Water Heater Install | Plumbing | Maryville
Picture stepping into a morning shower in Maryville and feeling an endless stream of perfectly heated water—without the worry of skyrocketing utility costs. That’s the everyday comfort HEP Plumbing brings with our expert tankless water heater install service, engineered to slash standby energy loss and cut monthly bills. By heating water on-demand instead of storing it, a modern tankless unit can save the average household up to 40% on water-heating expenses while taking up a fraction of the space of a bulky tank.
HEP’s certified technicians handle everything from sizing and venting to code-compliant hookups, so your new system delivers reliable performance for years to come. We’ll even haul away your old tank, tidy the workspace, and walk you through routine maintenance tips before we leave. Ready for lower bills, limitless hot water, and local service you can trust? Call HEP Plumbing today and let Maryville’s most dependable pros put smart savings on tap.
FAQs
How will installing a tankless water heater lower my energy bills in Maryville?
Traditional storage heaters keep 40-50 gallons of water hot 24/7, so you pay for heat that you never use (called standby losses). A tankless unit produces hot water only when a tap is opened. U.S. DOE studies show most Maryville homeowners save 24–34 % on water-heating costs, and our field data in Blount County confirms year-one utility-bill reductions of $90-$150, depending on usage. Because the burner or heating element runs only on demand, you also avoid reheating water that cooled during the night, further trimming TVA electricity or natural-gas charges.
What size and fuel type of tankless water heater do I need for my Maryville home?
Sizing is based on simultaneous demand (gallons per minute, or GPM) and the temperature rise between incoming cold water and the 120 °F set point. In Maryville, winter groundwater averages 52 °F, so we design for a 68 °F rise. A family of four that may run two showers and a dishwasher at once needs about 6.5 GPM. That equates to a 160,000–190,000 BTU natural-gas unit or a 27 kW electric model. During your free in-home assessment we count fixtures, measure water pressure, and check gas/electric service size to recommend the exact model that prevents “cold-water sandwiches” without oversizing your investment.
What is involved in the installation and how long does it take?
Most change-outs are completed in one day. We start by safely disconnecting and hauling away your old tank. Next, we upsize gas lines or install a dedicated 240-V breaker (electric models), mount the compact tankless unit on the wall, run Category III or IV stainless-steel venting through an exterior wall or the roof, and set the digital temperature controller. Our licensed plumbers obtain the required Maryville/Blount County permits and schedule final inspection, so you stay code-compliant. Hot water is usually flowing again within 4–6 hours, and we tidy the work area before leaving.
Are there rebates or incentives for tankless installations in Maryville or Tennessee?
Yes. TVA’s EnergyRight program currently offers up to $200 back on qualifying electric units installed by a Quality Contractor Network member. For natural-gas systems, Atmos Energy provides a $150 bill credit. In addition, the federal Inflation Reduction Act allows a 30 % tax credit (up to $600) on ENERGY STAR-certified equipment and another $150 for a professional home energy audit. We supply all paperwork, serial numbers, and load calculations so you can claim every dollar available.
How much maintenance does a tankless water heater need, and can I do it myself?
To maintain peak efficiency and protect the heat exchanger from Maryville’s moderately hard (7–9 GPG) water, we recommend an annual 45-minute service: flush the unit with 4 gallons of white vinegar or manufacturer-approved descaling solution, clean the in-line filter, and check the combustion or heating elements. Homeowners comfortable with basic DIY tasks can perform the flush, but professional service keeps the warranty valid and lets us update firmware, inspect venting, and verify gas-pressure or amp-draw readings. We offer economical maintenance plans starting at $99 per year.
Will a tankless water heater keep up during Maryville’s colder months?
Absolutely—when the unit is sized correctly. The colder the incoming water, the lower the flow rate a tankless can supply at a set temperature. That’s why we use the region’s 52 °F winter inlet temperature when sizing instead of the 60 °F Tennessee average. A properly selected unit will still deliver 2 simultaneous showers at 2.5 GPM each or one shower plus a washing machine without a drop in temperature. Many clients even report endless back-to-back showers on game-day weekends because the heater never runs out of stored hot water—it makes it on demand.