- HEP Plumbing
- Tankless Water Heater Install

Tankless Water Heater Install
Tankless Water Heater Install | Plumbing | Fountain City
Enjoy endless, on-demand hot water in Fountain City with a professionally installed tankless system from HEP Plumbing. Our factory-trained technicians remove bulky, outdated tanks and replace them with sleek, energy-efficient units that heat water only when you need it—cutting utility costs by up to 40 % while freeing up valuable closet or garage space. Whether you’re finishing a basement, upgrading for a growing family, or simply tired of cold-water surprises, we size and set up the perfect model for your home, handle all gas or electrical hookups, and haul away the old heater the same day.
Because we live and work right here in Fountain City, you’ll get fast scheduling, transparent pricing, and the peace of mind that comes with a 100 % satisfaction guarantee. Every install includes registered manufacturer warranties, optional annual maintenance plans, and 24/7 emergency support from the HEP team you already trust for plumbing, HVAC, and electrical. Ready to step into a limitless hot shower? Give HEP a holler today and discover how effortless hot-water comfort can be.
What our customers say
Why Fountain City Homeowners Are Embracing Tankless Water Heater Installation
Tank–style water heaters have served households in Fountain City for decades, yet more residents are upgrading to tankless models every month. An installation performed by HEP transforms the way hot water is delivered, replacing forty- or fifty-gallon reservoirs with a sleek, wall-mounted appliance that heats water only when a fixture is opened. The shift is driven by several factors that resonate with the needs of local property owners—efficiency, reliability, and space savings all rank high on the list.
Fountain City’s mix of mature homes and new construction creates an ideal landscape for tankless retrofits. Neighborhoods filled with charming Craftsman bungalows often struggle with tight mechanical rooms where gaining square footage matters. Modern subdivisions focus on energy-smart design from day one, making a high-efficiency water heater a cornerstone upgrade. Whether the house sits on an established street lined with maple trees or in a newer development overlooking the ridge, switching to tankless aligns with the goal of using resources wisely while enjoying continuous hot water.
Everyday Advantages That Make Tankless a Logical Choice
- Endless hot water for back-to-back showers, large families, and soaking tubs
- Up to double the lifespan of traditional tank units when maintained properly
- Wall-mounting frees valuable floor space in basements, closets, and garages
- Lower standby energy losses because water is heated only on demand
- Optional remote controls and recirculation systems for instant hot water at distant fixtures
Climate Considerations in Fountain City
Located in the Tennessee Valley, Fountain City experiences mild winters compared to northern regions, yet incoming groundwater can still drop below 50°F in the coldest months. A properly sized tankless water heater handles that temperature delta easily, raising water to comfortable levels in real time. Summer groundwater temperatures run higher, allowing the unit to operate with even less energy input. HEP’s technicians account for these seasonal fluctuations when recommending BTU ratings and flow capacities, ensuring consistent performance regardless of outside conditions.
The Role of Professional Plumbing in Tankless Installation
Installing a tankless water heater is a multi-disciplinary project that combines plumbing, gas fitting or high-amp electrical work, venting, and digital calibration. Fountain City homeowners often underestimate the complexity until they see the detailed steps HEP follows. From the first pipe fitting to final commissioning, every phase must meet building codes and manufacturer specifications.
Specialized Knowledge for Gas and Electric Units
- Gas tankless models require correct sizing of natural gas or propane lines to prevent pressure drop at peak demand
- Electric models demand upgraded circuits, breakers, and wire gauges to handle high amperage draw during operation
- Condensing gas units call for dedicated PVC venting and neutralization of acidic condensate to protect drainage systems
- Digital control boards need firmware updates and calibration for local water chemistry and altitude
HEP’s plumbing team stays current with evolving code requirements across Knox County. Their familiarity with local permitting offices streamlines approval, preventing delays that can occur when DIY attempts fall short of inspection standards.
HEP’s Step-by-Step Tankless Water Heater Install Process
Every property differs in age, layout, and utility infrastructure. HEP approaches each project as a custom solution rather than a one-size-fits-all job. Below is an in-depth look at how the team transforms a home’s hot-water system.
Assessment and Sizing
An accurate load calculation begins with fixture count—showers, tubs, dishwashers, laundry machines, utility sinks. HEP measures simultaneous flow expectations and determines the temperature rise needed from the coldest incoming water to the hottest desired output. With those numbers, the team selects a unit that maintains flow without dropping temperature, eliminating the “cold sandwich” phenomenon.
Preparing the Installation Area
Before the old tank is drained, HEP protects floors and nearby finishes. Water and gas supplies are shut off, and electrical disconnects verified. Tank removal often reveals rust, sediment, or scale; technicians clean and sanitize the platform or wall studs to ensure a sound mounting surface.
Gas Line or Electrical Upgrades
- For gas models, HEP runs black iron or CSST piping sized for BTU demand, using proper regulators and shut-off valves
- For electric models, certified electricians install new breakers and heavy-gauge copper conductors, often 6 AWG or larger, to dedicated double-pole breakers
- Pressure testing and voltage checks verify system readiness before connecting the unit
Mounting the Unit
Tankless water heaters weigh less than tanks but still require secure bracketing. HEP anchors penetrating screws into wall studs, sometimes adding a plywood backer panel for earthquake resistance in accordance with regional guidelines. Clearance around the unit ensures serviceability and proper airflow.
Venting and Condensate Management
Condensing gas units exhaust cooler flue gases, allowing use of PVC vent piping routed through an exterior wall or roof. HEP calculates vent length, slope, and termination clearances from soffits and windows. A condensate drain line with a neutralizer kit prevents acidic runoff from damaging plumbing or landscaping. Electric tankless units do not require venting, but HEP still ensures adequate room temperature so electronics remain within operating range.
Final Commissioning and Testing
Once utilities are connected, HEP purges air from water lines, then fires the burner or powers the heating elements. A digital manometer checks gas pressure under load, while multimeters confirm amperage draw for electric units. Temperature stabilizes within seconds, and technicians run multiple fixtures simultaneously to verify sustained flow. The homeowner receives a demonstration of control panel functions, error code interpretation, and simple filter service.
Code Compliance and Permitting in Fountain City
Knox County codes reference the International Residential Code (IRC) for plumbing and the National Fuel Gas Code for gas appliances. Fountain City building inspectors pay close attention to:
- Vent termination distances from windows, doors, and property lines
- Proper expansion tanks on closed water systems
- Backflow prevention for recirculation loops
- Electrical bonding and grounding of gas piping
- Isolation valves for descaling access
HEP submits permit applications, schedules inspections, and documents every step, giving homeowners confidence the installation is fully compliant from day one.
Comparing Tankless Technology Options
HEP offers unbiased guidance on selecting the configuration that best serves household routines and infrastructure.
Gas Condensing Tankless Units
- Highest efficiency, often over 95% thermal efficiency due to second-stage heat exchanger
- Ideal when natural gas or propane lines already service the property
- Requires venting and condensate drainage
Electric Tankless Units
- Compact footprint with no flue gas concerns
- Simplified installation where gas is unavailable, though electrical panel capacity is critical
- Suits smaller households with moderate simultaneous demand
Outdoor vs. Indoor Units
- Outdoor units eliminate venting but need freeze protection features for winter nights in Fountain City
- Indoor units stay protected from weather, with venting routed outside; perfect for garages, basements, or utility closets
By presenting these choices, HEP helps residents achieve the right balance between upfront modifications and long-term energy savings.
Addressing Homeowner Considerations Before Making the Leap
While tankless systems carry compelling advantages, Fountain City homeowners weigh several practical points before green-lighting the upgrade.
Water Quality and Scale Potential
East Tennessee’s water tends to be moderately hard, introducing mineral buildup risk. HEP often installs inline sediment filters and recommends annual descaling. For well water users north of Broadway, additional filtration may be advised to combat higher iron content.
Flow Rate Expectations
Large jacuzzis or walk-in rainfall showers present high flow requirements. HEP may recommend either a larger single unit or a cascading setup where two heaters operate in tandem, automatically staging on when demand spikes.
Existing Gas Meter or Electrical Service Capacity
Older homes sometimes feature undersized gas meters or 100-amp electrical panels. HEP evaluates the utility feed and coordinates meter upgrades or panel replacements as needed. The consultation prevents unpleasant surprises and ensures the new heater runs at peak output from the start.
Maintenance After a Tankless Water Heater Installation
The longevity of a tankless system hinges on periodic maintenance. HEP provides tailored service plans, but homeowners also play a role in day-to-day care.
Periodic Descaling
Mineral deposits on heat exchanger fins reduce efficiency and can trigger error codes. Technicians flush the unit with a vinegar or citric acid solution using a circulation pump, typically once per year in Fountain City’s water conditions.
Filter Cleaning
Many tankless heaters include a cold-water inlet screen. HEP shows homeowners how to remove, rinse, and reinstall this mesh filter to protect the heat exchanger from debris.
Annual Inspection by HEP
During a yearly visit, HEP checks combustion ratios, gasket integrity, fan operation, and venting. Software diagnostics reveal fault histories, and firmware updates are applied if available.
Environmental and Energy Advantages of Going Tankless
Shifting away from standby heating delivers tangible ecological benefits for Fountain City residents.
Lower Carbon Footprint
A tankless heater’s efficiency means less natural gas or electricity usage. Over the life of the unit, the reduction translates into thousands of pounds of avoided carbon emissions, supporting regional sustainability initiatives.
Reduced Water Waste
Recirculation pumps paired with smart timers recirculate cooled water back to the heater, cutting down on gallons that would otherwise go down the drain while waiting for hot water to arrive at far-flung bathrooms or kitchen sinks.
Material Conservation
Traditional tanks corrode from the inside and end up in landfills every 8–12 years. A tankless water heater can double that lifespan, trimming the number of discarded steel shells over time.
Preparing Your Home for a Tankless Upgrade
Although HEP handles every technical detail, homeowners can take proactive steps to streamline the installation day.
- Clear a path to the existing water heater for safe removal
- Move storage items from the walls or floor area where the new unit will mount
- Note any hidden shut-off valves behind cabinetry so technicians can access them easily
- Identify preferred locations for remote control panels if the model includes wireless or wired remotes
- Consider scheduling installation when household hot-water needs are low, such as mid-morning after morning routines
Integrating Recirculation Systems for Instant Hot Water
One common misconception is that tankless water heaters automatically deliver instant hot water at every faucet. The reality is they eliminate recovery time but still require hot water to travel through plumbing lines. HEP addresses this with dedicated recirculation loops or crossover valves that leverage the unit’s built-in pump.
Dedicated Return Loop
A return pipe connects the furthest fixture back to the heater, creating a continuous circuit. The pump runs on a timer, aquastat, or motion sensor, ensuring pipes remain warm during key usage windows—early morning and evening—without wasting energy all day.
Crossover Valve Systems
In homes without a return line, a crossover valve installs under the sink at the furthest fixture. The valve opens when water temperature drops, allowing the pump to push cooled water into the cold line until hot water reaches the valve. Installation requires minimal plumbing alterations, making it a popular retrofit when walls are finished or cost control is important.
Smart Controls and Connectivity Features
Modern tankless units integrate Wi-Fi modules that pair with mobile apps. Fountain City residents appreciate the convenience of adjusting temperature settings, monitoring consumption statistics, and receiving maintenance alerts from their phones. HEP configures secure connectivity, updates firmware, and instructs homeowners on interpreting usage graphs to identify patterns that inform lifestyle tweaks for even greater efficiency.
Safety Measures Embedded in Tankless Water Heaters
Safety extends beyond code compliance; tankless water heaters bring several built-in protections that older tank models lack.
- Automatic flame failure detection shuts off gas supply if ignition is lost
- Over-temperature limits prevent scalding and protect the heat exchanger
- Freeze protection activates internal heaters when ambient temperatures near freezing, safeguarding outdoor units during Fountain City’s occasional cold snaps
- Exhaust fan speed modulation maintains proper combustion regardless of vent backpressure or wind gusts
HEP verifies each safeguard during commissioning, creating peace of mind that the system reacts instantly to abnormal conditions.
Energy Rebates and Local Incentives for Tankless Adoption
Utility providers in the Knoxville area periodically offer rebate programs for energy-efficient appliances. Although program availability changes, HEP tracks current incentives and guides homeowners through paperwork and inspection checkpoints to maximize savings. This support covers rebate forms, proof of purchase, and follow-up efficiency testing if required by the utility.
The Aesthetic Upgrade That Comes With Wall-Mounted Units
Beyond performance, tankless heaters improve the visual appeal of storage areas. Removing a bulky 50-gallon tank often reveals additional square footage perfect for shelving, workout equipment, or hobby supplies. In garages, the clean installation opens floor space for bicycles and yard tools. Some homeowners even finish the area with fresh paint or organizational systems once the tank is gone, turning a once crowded corner into a functional zone.
Regional Water Heater Regulations and Future Trends
The Department of Energy periodically tightens efficiency standards for residential water heaters. Tank models respond with thicker insulation, making them even larger. Tankless technology, already exceeding many of these standards, remains poised to meet forthcoming regulations without swelling in size. Fountain City residents who adopt tankless now effectively future-proof their hot-water system against stricter rules, sidestepping potential retrofit headaches later.
Emerging trends include integrated combi-boilers that provide both domestic hot water and hydronic heating through radiant flooring or air handlers. HEP monitors these innovations and will recommend them when they match a homeowner’s goals. For the majority seeking a straightforward domestic hot water solution, standalone tankless units remain the best fit.
Sustainable Plumbing Materials and Techniques Used by HEP
Sustainability is woven into every job HEP completes. The company recycles scrap copper and steel from removed tanks, reducing landfill impact. When running new water lines, technicians often choose PEX piping for its lower embodied energy compared to copper production. Lead-free solder and brass fittings comply with the Reduction of Lead in Drinking Water Act, ensuring clean water quality.
Final Thoughts on Tankless Water Heater Installation in Fountain City by HEP
A tankless water heater marks a decisive move toward comfort, efficiency, and sustainability for any Fountain City residence. HEP’s meticulous approach—from precise sizing and code-compliant installation to ongoing maintenance—assures homeowners the investment performs at its peak year after year. As neighborhood after neighborhood discovers the difference of truly endless hot water, HEP remains ready with the skills, tools, and local expertise that make the transition seamless.