High-efficiency Tankless Unit
High-efficiency Tankless Unit | Tankless Water Heater Install | Plumbing | Karns
Imagine endless hot water, lower utility bills, and precious space reclaimed in your Karns home—that’s what HEP delivers with a high-efficiency tankless water heater install. Our licensed plumbers size the perfect unit for your family’s needs, swap out bulky tanks in a single visit, and fine-tune every connection so you enjoy steaming-hot showers the moment you turn the tap. Because the water is heated only when you need it, you’ll see energy savings of up to 40% while slashing standby heat loss to zero.
Backed by rock-solid warranties and 24/7 local support, HEP’s tankless systems are built to run for decades with minimal maintenance. Whether you’re finishing a remodel, replacing a failing tank, or just ready for a smarter way to heat water, our Karns team is ready to schedule, install, and clean up—leaving behind nothing but comfort and confidence.
FAQs
What are the main benefits of switching to a high-efficiency tankless water heater in Karns?
High-efficiency tankless units heat water only when you need it, eliminating standby heat loss from a storage tank. Homeowners in Karns typically see energy-use reductions of 25–40 %, unlimited hot-water capacity, space savings (no bulky tank), longer equipment life (20+ years versus 10–15 for tanks), and possible rebates from TVA or local utilities for ENERGY STAR®-rated models.
How long does a typical tankless water heater installation take?
For most homes in Karns, a straightforward replacement of a tank-type heater with a gas or electric tankless unit takes 4–8 hours. Projects involving gas-line upsizing, venting modifications, or relocating the heater can extend the job to 1–2 days. We perform a site visit first so you’ll know the exact timeline before work begins.
Will my existing gas or electric service support a tankless unit?
Tankless heaters often require larger gas lines (¾ in. or more) or higher-amperage electric circuits (up to 150 A for whole-house electric models). During our free assessment we measure incoming gas pressure, pipe size, and electrical panel capacity. If upgrades are needed, we provide a fixed quote for the necessary plumbing or electrical work so the system delivers full performance and stays code-compliant.
How much can I expect to save on energy bills?
Savings depend on household hot-water demand, fuel costs, and the efficiency of your old unit. In Karns, families replacing a standard 0.60 EF gas tank with a 0.95 UEF condensing tankless model typically save $80–$150 per year on natural-gas bills. Electric tank-to-tankless conversions can save $100–$200 annually. Many customers recoup the price difference in 4–7 years, faster if utility rebates apply.
What maintenance does a tankless water heater require?
Unlike tanks that rust from the inside, tankless heat exchangers stay cleaner but still need periodic care. We recommend an annual 30-minute flush with food-grade vinegar to remove mineral scale, inspection of the condensate drain (for condensing units), and cleaning of the air intake filter. Our maintenance plans include this service and extend the heat-exchanger warranty in many cases.
Do I need permits or inspections in Karns for a tankless installation?
Yes. Knox County requires plumbing and, for gas units, mechanical permits. Electric models may need an electrical permit if new circuits are added. As a licensed, insured contractor we pull all necessary permits, schedule county inspections, and provide you with the final approval paperwork—so your new tankless system is 100 % code-compliant and warranty-protected.