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Tankless Water Heaters service in Asheville, NC

Tankless Water Heater Installation and Service in Asheville, NC

Enjoy endless hot water on demand with a professionally installed tankless water heater from PlumbSmart Plumbing and Drains. We help Asheville and Western North Carolina homeowners choose, install, and maintain the right system for their home.

Tankless Water Heaters in Asheville, NC

Tankless water heaters heat water only when you need it, eliminating the standby energy loss that occurs when a traditional storage-tank unit keeps dozens of gallons hot around the clock. For Asheville homeowners, that means a more energy-efficient home and a water heater that can last significantly longer than a conventional tank model when properly maintained.

Unlike a storage tank that can run cold after heavy use, a properly sized tankless unit delivers a continuous flow of hot water as long as there is demand. That makes them especially practical for households with multiple bathrooms, busy morning routines, or frequent guests, situations where a tank system routinely falls short.

PlumbSmart Plumbing and Drains has been installing and servicing tankless water heaters in Asheville and surrounding Western North Carolina communities since July 2008. As a family-owned, licensed, and insured plumbing company, we carry and service leading brands including Rinnai, Navien, Takagi, and Rheem, and we back every water heater installation with our exclusive 5 to 10 year warranty, the only offer of its kind in the region.

Common problems, symptoms & solutions

Inconsistent water temperature

Symptom: The shower runs warm for a few minutes then goes cold, or the temperature fluctuates unexpectedly during use.

Solution: A plumber checks the flow sensor, thermistor, and heat exchanger for fouling or failure. Cleaning or replacing the affected component restores steady temperature control.

No hot water at all

Symptom: The unit powers on but produces only cold water, or it fails to ignite entirely.

Solution: The technician inspects the gas supply, igniter, and venting system on gas models, or checks the heating elements and circuit board on electric units, then repairs or replaces the faulty part.

Mineral scale buildup in the heat exchanger

Symptom: Hot water output slows noticeably, the unit runs longer to reach temperature, or error codes related to overheating appear on the display.

Solution: A descaling flush using a food-grade solution circulated through the heat exchanger removes mineral deposits, restoring full flow and efficiency. This is especially important in areas with hard well water.

Unit shuts off mid-shower

Symptom: Hot water cuts out suddenly, sometimes accompanied by an error code, then resumes after a short wait.

Solution: The plumber inspects venting for blockages, checks the gas pressure or electrical supply for fluctuations, and tests the flow sensor. Correcting the root cause eliminates nuisance shutdowns.

Leaking connections or pressure relief valve

Symptom: Water pools near the unit, drips from the pressure relief valve discharge line, or wet spots appear on surrounding walls.

Solution: The technician identifies the source, whether it is a loose fitting, corroded connection, or a faulty valve, and replaces the affected component to prevent water damage.

Undersized unit struggling to meet demand

Symptom: Hot water becomes lukewarm when two or more fixtures run simultaneously, such as a shower and dishwasher operating at the same time.

Solution: A plumber evaluates peak demand, groundwater temperature, and fixture count to recommend the correctly sized unit or a parallel installation, then handles the full upgrade from removal to commissioning.

What to Expect from a Tankless Water Heater Installation with PlumbSmart

Proper sizing is the single most important step in a successful tankless installation. A unit that is too small will leave occupants with lukewarm water during periods of high demand, while an oversized unit costs more than necessary upfront. PlumbSmart evaluates your household's peak hot-water demand, the incoming groundwater temperature at your location, and the number and type of fixtures to recommend the right flow rate and fuel type for your specific situation.

Gas-fired tankless heaters require dedicated venting through a concentric flue system, and in many retrofit situations the existing gas line must be upsized to deliver the higher BTU input these units demand. Electric tankless models typically require new dedicated circuits and appropriately rated breaker panels. Our licensed plumbers coordinate all pipe and venting work, and we make sure every installation meets current North Carolina plumbing codes under NC LIC 29593.

Once the unit is mounted and connected, we commission it to factory specifications, verify proper ignition or element operation, confirm accurate temperature settings, and walk you through the controls and maintenance schedule. We also install isolation valves and a service port to make future descaling easy, a simple step that extends the life of the heat exchanger considerably in WNC's varied water conditions.

After installation, PlumbSmart backs the work with the strongest water heater warranty in the region: 5 to 10 years depending on the equipment selected. We also offer Piper Protection Plans starting at just 14 dollars per month so routine maintenance is never an afterthought. Brands we install and service include Rinnai, Navien, Takagi, Rheem, A. O. Smith, and others, giving you genuine options rather than a one-size-fits-all recommendation.

How it works

  1. 1Call 828-974-6147 or use our online scheduler to book a consultation at a time that suits you.
  2. 2A licensed PlumbSmart plumber visits your home, assesses your hot-water demand, inspects existing gas or electrical supply, and measures the installation space.
  3. 3We present multiple equipment options with honest set pricing so you can choose the system that fits your budget and performance goals.
  4. 4Our team removes the old water heater, installs the new tankless unit, upgrades gas lines or venting as required, and tests all connections for leaks and proper function.
  5. 5We commission the system, confirm accurate temperature output, and walk you through operation and basic maintenance including periodic descaling.
  6. 6Your installation is backed by our 5 to 10 year water heater warranty and 100 percent satisfaction guarantee, with ongoing support available through our Piper Protection Plans.

Why Asheville chooses PlumbSmart

Endless Hot Water on Demand

Tankless units heat water as it flows through the heat exchanger, so there is no storage tank to deplete even during consecutive showers or heavy simultaneous use.

Industry-Leading Warranty

PlumbSmart backs every tankless water heater installation with a 5 to 10 year warranty, the only offer of its kind available in the Western North Carolina region.

Space-Saving Wall-Mount Design

A tankless unit mounts on the wall and occupies a fraction of the footprint of a traditional 40 or 50 gallon storage tank, freeing up valuable utility room or closet space.

Energy Efficiency and Potential Savings

Because a tankless heater only activates when hot water is called for, it avoids the continuous standby heat loss of a storage-tank unit, which can reduce water heating energy consumption over time.

Water heater warranty

5 to 10 year warranties on PlumbSmart water heater installations

Protection for one of your home's biggest plumbing investments. Ask about coverage when you request your free estimate.

Tankless Water Heaters FAQ

Asheville and the surrounding Western North Carolina mountain communities present a specific set of conditions that make tankless water heater sizing and installation more involved than in flatter, more temperate regions. Groundwater temperatures here run colder than in much of the South, which means the heat exchanger must work harder to reach a comfortable output temperature, making accurate BTU and flow-rate calculations essential. Many homes in the area rely on private wells that carry dissolved minerals capable of accelerating scale buildup inside a heat exchanger if the unit is not flushed on a regular schedule. Older homes in Asheville's historic neighborhoods often have undersized gas lines or dated electrical panels that need attention before a tankless unit can be properly supported. And because WNC winters can bring sustained freezing temperatures, outdoor or garage-mounted units require freeze-protection features and correct venting to operate safely year-round. PlumbSmart's familiarity with these local conditions informs every installation recommendation we make.

How does a tankless water heater actually work?

When you open a hot-water tap, cold water flows through a pipe into the tankless unit and across a heat exchanger warmed by a gas burner or electric elements. The water reaches your set temperature almost instantly and continues flowing for as long as the tap is open. There is no stored volume to exhaust, so the hot water does not run out the way it can with a storage-tank system.

Is my home's gas line or electrical panel ready for a tankless unit?

Many older homes in the Asheville area require upgrades before a tankless installation. High-efficiency gas tankless heaters typically draw more BTUs than the line serving an old tank heater, so the gas supply pipe may need to be upsized. Electric models often require one or more new dedicated circuits. A PlumbSmart plumber assesses your existing infrastructure during the consultation and includes any necessary upgrades in your written options.

What brands of tankless water heaters does PlumbSmart install?

We install and service Rinnai, Navien, Takagi, Rheem, A. O. Smith, and several other leading brands. During your consultation we present multiple options so you can select the brand and model that best matches your performance needs and budget rather than being limited to a single product line.

What warranty comes with a PlumbSmart tankless water heater installation?

PlumbSmart provides a 5 to 10 year water heater warranty on installations, which we believe is the only warranty of its length offered by a plumbing company in the Western North Carolina region. The specific term depends on the equipment selected. This is separate from any manufacturer warranty on the unit itself.

How do I maintain a tankless water heater in Western North Carolina?

The most important maintenance task is periodic descaling of the heat exchanger, especially if your home is served by a well or hard municipal water. Mineral deposits restrict flow and reduce efficiency over time. Most manufacturers recommend flushing the unit annually or every two years depending on water hardness. PlumbSmart's Piper Protection Plans include ongoing maintenance support to keep your system running at peak performance.

Can a tankless water heater handle my whole house, or do I need multiple units?

A single properly sized tankless unit handles most residential households. The key variable is flow rate in gallons per minute at your desired temperature rise from incoming groundwater. In larger homes with simultaneous high-demand use, two units plumbed in parallel may be the right solution. PlumbSmart sizes every installation individually rather than applying a one-size-fits-all approach.

Does PlumbSmart offer financing for tankless water heater installations?

Yes. PlumbSmart offers financing through GoodLeap with 5, 7, and 10 year financing plans, making it easier to move forward with a higher-efficiency system without paying the full cost upfront. Ask about current options when you schedule your consultation.

What is the Piper Protection Plan and how does it apply to tankless water heaters?

The Piper Protection Plan is PlumbSmart's ongoing service membership available at a Comprehensive level for 14 dollars per month or a Premium level for 35 dollars per month. Members receive priority service and support that helps ensure routine maintenance, including tankless descaling, is performed on schedule rather than deferred until a problem develops.

Areas we serve

Asheville and surrounding Western North Carolina

PlumbSmart has served homes and businesses across Asheville since 2008, along with the surrounding Western North Carolina communities. Not sure if we cover your address? Give us a call and we'll let you know.

Headquartered in Asheville, NC

1 Sunny Ridge Dr., Asheville, NC 28804

Serving Asheville & nearby WNC communities

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