Wall-mounted Units
Wall-mounted Units | Tankless Water Heater Install | Plumbing | Rockwood
Swap the bulky tank for endless comfort with HEP’s wall-mounted units. Our certified plumbers specialize in tankless water heater install services that fit perfectly into Rockwood homes, delivering hot water on demand while freeing up floorspace and slashing energy costs. From choosing the right high-efficiency model to precision mounting and venting, we handle every detail so you can enjoy a quieter, cleaner utility area and lower monthly bills.
Backed by decades of local experience, HEP guarantees punctual arrivals, transparent pricing, and workmanship that stands the test of time. Whether you’re upgrading a dated system or building new, we streamline the process with convenient financing options and 24/7 emergency support. Reach out today and discover why Rockwood homeowners trust HEP to turn routine plumbing into a smart, space-saving upgrade.
FAQs
What size wall-mounted tankless water heater do I need for my Rockwood home?
Sizing is based on two factors: (1) the total flow rate you want to supply at one time and (2) the temperature rise between incoming cold water and your desired hot-water setting. We determine flow rate by adding up the gallons per minute (GPM) of the fixtures you expect to run simultaneously—shower, kitchen sink, washing machine, etc. In Rockwood, winter groundwater temperatures average about 50 °F, so achieving 120 °F hot water requires a 70 °F temperature rise. As a rule of thumb, a three-bathroom household that often runs two showers and the dishwasher at once will need a unit capable of at least 8 GPM at a 70 °F rise. During our free on-site assessment we measure your actual demand and recommend the properly sized gas or electric model so you never run out of hot water.
How long does installation take and will my water be shut off?
A straightforward replacement of a tank heater with a wall-mounted tankless unit usually takes 6–8 hours. More complex jobs that require upsizing the gas line or adding a new 240-V circuit can take a full day. Your water is typically turned off for 1–2 hours while we tie into the plumbing. We schedule the shut-off window with you in advance to minimize inconvenience, and we always restore water service before we leave for the day.
What are the main benefits of switching to a wall-mounted tankless water heater?
• Endless hot water: Because water is heated on demand, you can run consecutive showers without running out. • Energy savings: Eliminating standby heat loss saves 20–40 % on water-heating energy bills, especially important with Rockwood’s variable electricity and natural-gas rates. • Space savings: The compact wall-mounted design frees up several square feet of floor space. • Longer life span: Tankless units last 18–20 years on average—roughly twice the life of a storage tank. • Cleaner water: No large tank means no sediment build-up, so your water stays cleaner and the unit remains more efficient over time.
Will my existing gas line or electrical panel support a tankless unit?
Natural-gas models generally need a ¾-inch gas line capable of delivering 150–200 k BTU/h, which is larger than the ½-inch line feeding most tank heaters. During our estimate we perform a gas-load calculation to see if upsizing is required. Electric tankless units call for one or more 240-V circuits rated up to 120 A, so homes with 100-A service may need a panel upgrade. We provide the exact electrical and gas requirements for the model you choose and can complete any necessary upgrades in-house, ensuring your installation meets Rockwood utility standards.
What routine maintenance does a tankless water heater need?
1. Annual descaling: Hard-water minerals can form inside the heat exchanger. We flush the unit with a food-grade vinegar solution to keep it efficient and under warranty. 2. Filter cleaning: Most wall-mounted models have an inlet screen that should be rinsed every 6–12 months. 3. Vent and intake inspection: We verify that combustion air pathways are clear and the condensate drain is unobstructed. A maintenance visit takes about one hour and dramatically extends the service life of your heater.
Are permits and inspections required in Rockwood, and do you handle them?
Yes. The City of Rockwood and Roane County require mechanical and, when applicable, electrical and gas permits for any water-heater replacement. A final inspection ensures the installation meets ICC, UPC, and local energy-code requirements. Our licensed plumbers and HVAC technicians pull all necessary permits on your behalf, schedule the inspection, and provide you with the signed-off paperwork for your records.