High-efficiency Tankless
High-efficiency Tankless | Tankless Water Heater Install | Plumbing | Chattanooga
Enjoy endless hot water, lower utility bills, and valuable space savings with HEP’s high-efficiency tankless plumbing solutions in Chattanooga. Our licensed technicians arrive with fully stocked trucks, precision-sizing your system and completing a tankless water heater install that fits your home’s exact demand, so you only heat the water you actually use. The result is up to 40% energy savings, a longer appliance lifespan, and the peace of mind that comes from industry-leading warranties backed by a locally trusted team.
From historic Riverview homes to modern builds on Signal Mountain, we’ve perfected a streamlined process: free on-site evaluation, upfront flat-rate pricing, same-day installation whenever possible, and thorough clean-up before we leave. HEP is available 24/7 for emergency service, and our workmanship guarantee means you can schedule your upgrade with total confidence.
Ready to ditch the bulky tank and step into the future of hot water? Call or book online today and discover why Chattanooga homeowners turn to HEP when performance, efficiency, and comfort matter most.
FAQs
What are the main benefits of installing a high-efficiency tankless water heater in Chattanooga?
A high-efficiency tankless unit delivers hot water only when you open a tap, so it eliminates the standby heat loss of traditional storage tanks and can cut water-heating energy use by 25-40 %. You also get endless hot water, a compact wall-mounted design that frees up floor space, and a service life of 20+ years—about twice that of a tank heater. Because Chattanooga’s incoming groundwater temperature averages 55-60 °F, modern condensing tankless models can easily reach comfortable shower temperatures while still operating at 0.90–0.97 UEF (Uniform Energy Factor), reducing both your utility bills and carbon footprint.
How does a tankless water heater work compared with a conventional tank system?
When you open a hot-water fixture, flow sensors inside the tankless unit trigger a gas burner or electric element. A high-efficiency heat exchanger instantly raises the water temperature to your set point, and the system modulates the burner to maintain that temperature until you close the tap. Because no water is stored, there is virtually no standby loss, and you never "run out" of hot water. By contrast, a storage tank keeps 40–50 gallons hot all day, cycling on and off even when no one is using hot water—wasting energy and taking up space.
Will a single tankless unit provide enough hot water for my whole household?
Yes—when it is properly sized. Modern gas tankless models deliver 7–11 GPM (gallons per minute) in our climate, enough for 2–4 simultaneous fixtures. We calculate peak demand (showers, dishwasher, laundry) and the required temperature rise (groundwater to 120 °F). In Chattanooga winters, you may need a 70 °F rise; a 9 GPM unit will comfortably run two showers and a washing machine at that rise. Large homes can use multiple units in parallel or dedicated point-of-use units for remote bathrooms to ensure unlimited, consistent hot water throughout the house.
What size tankless water heater do I need for my Chattanooga home?
Sizing is based on (1) peak flow rate and (2) temperature rise. Add the GPM of fixtures you typically use at once—e.g., 2 showers (2.5 GPM each) + dishwasher (1.5 GPM) = 6.5 GPM. Incoming water in Chattanooga averages 55 °F in winter and 65 °F in summer; to reach 120 °F you need a 55–65 °F rise. A condensing gas unit rated at 180,000 BTU/h (≈9 GPM at a 60 °F rise) would meet that demand. Our technicians perform a free in-home load analysis, verify gas line capacity and venting routes, and recommend the right model so you never feel a hot-water pinch.
Are rebates or incentives available for high-efficiency tankless installations in Chattanooga?
Yes. Chattanooga Gas currently offers up to $300 for replacing a standard gas tank with a qualifying ENERGY STAR® tankless model. Through TVA’s EnergyRight® program you may qualify for an additional $200 rebate when the unit is installed by a Quality Contractor Network (QCN) member. The federal ENERGY STAR tax credit (IRC 25C) covers 30 % of the installed cost, up to $600, for units with ≥0.95 UEF. These programs change periodically, so we’ll file the paperwork and confirm eligibility before installation.
What does installation cost, how long does it take, and what maintenance is required?
A typical high-efficiency gas tankless installation in Chattanooga runs $3,500–$5,000 all-in. The job usually takes one day (4–8 hours), including removal of the old tank, mounting the new unit, upgrading gas line capacity if needed, routing stainless or PVC venting, and adding a condensate drain. After installation, annual maintenance is simple: flush the heat exchanger with a vinegar solution to remove mineral scale (our city water is moderately hard at 6–8 grains per gallon) and clean the inlet filter. We offer low-cost service plans that include this flush, a full safety inspection, and firmware updates to keep your system running at peak efficiency.