Tankless Unit
Tankless Unit | Tankless Water Heater Install | Plumbing
Enjoy endless hot water, lower utility bills, and reclaimed closet space when you choose HEP’s expert team for your tankless water heater install. Our licensed plumbers swap out bulky, outdated tanks with sleek, high-performance units that heat water on demand, so you only pay for what you use. From evaluating gas lines and venting to fine-tuning digital controls, we handle every detail with precision—leaving you with a whisper-quiet system that delivers steamy showers even during back-to-back mornings.
Whether you’re upgrading a single-family home in Knoxville or retrofitting multiple units for a rental property, HEP backs every installation with clear upfront pricing and a rock-solid satisfaction guarantee. Call today or book online, and discover how fast professional service can transform your daily routine while slashing energy costs for years to come.
FAQs
How does a tankless water heater work?
A tankless, or on-demand, water heater senses the flow of water when you open a hot-water tap. A high-powered heat exchanger (either gas-fired or electric) instantly heats the water as it passes through the unit, delivering a continuous supply of hot water without storing it in a tank. Once the tap closes, the burner or heating element shuts off, eliminating standby heat loss.
What are the advantages of installing a tankless unit compared to a traditional tank?
• Endless hot water: Because water is heated on demand, you’re not limited by a storage tank’s capacity. • Energy savings: Eliminating standby heat loss can reduce energy consumption by 20–40 %. • Space saving: Wall-mounted units free up floor space in closets, garages, or basements. • Longer lifespan: Tankless models typically last 20+ years—about twice that of most tank heaters. • Reduced risk of leaks and floods: No large tank of water means less potential for catastrophic tank failure.
How long does a professional tankless water heater installation take?
In most retrofit situations, a standard residential installation takes 4–8 hours. Factors that can add time include upgrading gas or electrical service, rerouting venting, relocating the unit, or adding water treatment. Our technicians begin with a pre-installation inspection so you know the expected time frame before any work starts.
What size tankless water heater do I need for my home?
Sizing is based on two factors: 1) the maximum flow rate (gallons per minute) you’ll need when multiple fixtures run simultaneously, and 2) the required temperature rise (the difference between incoming cold-water temperature and your desired hot-water setpoint). We calculate these numbers during an on-site evaluation and recommend a unit with enough BTU or kW capacity to handle your peak demand without temperature drop.
Are tankless water heaters energy efficient and can they lower my utility bills?
Yes. Because they heat water only when you need it, tankless units eliminate standby losses experienced by storage tanks. Gas models often achieve 93–98 % thermal efficiency, while electric units can approach 99 %. Homeowners typically see energy-bill reductions of 10–40 %, with higher savings in households that previously kept a large tank of hot water on standby.
What kind of maintenance does a tankless water heater require after installation?
Annual maintenance keeps your warranty valid and extends the unit’s life. A technician will: 1) flush the heat exchanger with a descaling solution to remove mineral buildup, 2) inspect and clean the inlet filter, 3) check venting and gas-pressure settings, and 4) update firmware on smart models. In areas with very hard water, descaling every 6 months—or adding a water softener—may be recommended.