Never wait for hot water again

Tankless Water Heaters

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Tankless Water Heaters in Knoxville, TN

Tired of running out of hot water right when you need it most? Tankless water heaters offer the perfect solution for Knoxville homes that demand endless hot water and energy efficiency. Unlike traditional tank water heaters that store and constantly reheat water, tankless systems heat water on demand, providing unlimited hot water while saving space and energy.

At The Plumbing Authority, we’re the tankless water heater experts in Knoxville. Whether you’re interested in installing your first tankless system or need repair service for an existing unit, our experienced team has the knowledge and skills to keep your hot water flowing. Let us help you discover the convenience and efficiency of tankless technology.

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Our Water Heater Services

A Tankless Water Heater Is Perfect for Your Knoxville Home If…

  • You hate running out of hot water. Whether it’s back-to-back showers or running the dishwasher and laundry at the same time, tankless systems heat water on demand so you never run out.
  • You’re looking to cut energy waste (and your utility bill). Unlike traditional tanks that constantly reheat water, tankless units only fire up when you need hot water, helping reduce energy usage in your Knoxville home.
  • You’re short on space. About the size of a carry-on suitcase, tankless water heaters mount neatly on the wall, freeing up floor space in closets, garages, and utility rooms.
  • You plan to stay put—or boost your home’s value. Tankless models can last 20+ years with proper maintenance, and their energy efficiency makes them an attractive feature for future buyers.
  • You want modern convenience. From faster access to hot water to advanced controls and temperature customization, tankless systems are built to fit a streamlined, tech-savvy lifestyle.

Knoxville Tankless Water Heater Replacement & Installation

Do you need a brand new tankless water heater in Knoxville, or are you wondering if you should install one for the first time? Our plumbers can make all the necessary changes to your plumbing system so that it will work with your new water heater. We can also install the new tankless water heater, testing it to make sure it works the way it should.

Our team of experts will help you find the very best tankless water heater for your needs, as well. We’ll ensure that you and your family have plenty of hot water, no matter what your Knoxville home demands.

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Knoxville Tankless Water Heater Repair

Tankless water heater repair in Knoxville doesn’t have to give you a headache. When you call our professional plumbers, you’ll be getting the very best service you could possibly receive. We know tankless water heaters inside and out, and we are certain that we can help you fix yours.

We’ll find the issue and repair it fast so you won’t have to feel anxious about your hot water anymore! Our technicians are trained on all major tankless brands and can quickly diagnose problems.

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Knoxville Tankless Water Heater Maintenance

Tankless water heaters require maintenance, just like conventional ones, though the maintenance process is different. Our plumbers will come to you and test each part of your tankless water heater in Knoxville, so you won’t have to worry about it.

If we discover any issues, we’ll repair them or arrange to do so ASAP so you won’t have to live with a tankless water heater that’s not working. Regular maintenance helps prevent scale buildup and ensures optimal performance in Knoxville’s water conditions.

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Upgrade to Endless Hot Water

Stop scheduling showers around your water heater. Tankless means hot water whenever you need it. Let’s install the unlimited hot water solution your Knoxville home deserves.

Call (865) 245-5251

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Knoxville Tankless Water Heater FAQ’s

How does a tankless water heater work?

Tankless water heaters heat your hot water as you need it. They heat it very quickly, so there’s usually not much of a wait for the water to get to you. This separates them from conventional heaters, which heat and store water.

Are tankless water heaters worth it?

The right water heater for you depends on your specific situation, including how much hot water you need, usage patterns, and your plumbing setup. Many Knoxville homeowners find that tankless water heaters are well worth the investment.

What are the most common signs of a malfunctioning tankless water heater?

Common signs include insufficient hot water, leaks, inconsistent water temperatures, unusual noises, error codes on the display, or a complete lack of hot water. Our Knoxville technicians can diagnose any of these issues.

Can you run out of hot water with a tankless water heater?

If your tankless water heater cannot heat water as fast as you need it, then you may run out. In these situations, we usually recommend installing multiple units for high-demand Knoxville homes.

How long do tankless water heaters last in Knoxville?

With proper maintenance, tankless water heaters typically last 15-20 years in Knoxville, significantly longer than traditional tank units. Regular maintenance is key to maximizing lifespan in our local water conditions.

What size tankless water heater do I need?

Sizing depends on your peak hot water demand and incoming water temperature. Our Knoxville tankless water heater installation experts will calculate the right size based on your specific usage patterns and home requirements.

Do tankless water heaters work well in Knoxville's climate?

Yes, tankless water heaters work excellent in Knoxville. They’re less affected by ambient temperature than tank units and provide consistent performance year-round, adapting well to our seasonal temperature variations.