Serving Charlotte, Huntersville, Concord and Surrounding Areas

“If You Want The Tankless Water Heater Experts in the Charlotte Area, Call Three Way Plumbing”

We appreciate referrals like that from our customers! After years of experience, Three Way Plumbing in Charlotte knows which tankless water heaters, instant or hybrid, provide reliable hot water solution and how to maintain them to keep them trouble-free. We are not only certified installers and but authorized service reps for all the major manufacturers such as Noritz, Rheem, Rinnai and Navien tankless water heaters.  Our Charlotte tankless water heater experts can install the make and model that is right for your home and individual circumstances, but we can also give you piece of mind that we are also here to help maintain your unit for a longer lifespan and service it if the need arises in the Greater Charlotte area including Lake Norman, Mooresville, Concord, Huntersville, and the Weddington areas.


Top 6 Reasons to Choose a Tankless Water Heater:
  1. ENDLESS HOT WATER…Even when everyone in the whole family is taking a shower while the dishwasher and washing maching are running too. Tankless water heaters heat water on demand and that means you never have to worry about running out of hot water.
  2. HIGHER VOLUME...Hot Water For Any Size Home. There are multi-system set-ups that can even link up to 24 units, which translates to 317 gallons per minute - enough for over 126 showers at one time!
  3. CLEAN WATER…No Dirty Tanks. With a tankless water heater, water is heated as it passes through the unit so you will always be using a fresh supply of water.  As they age, traditional tank water heaters can start to rust and build-up scale inside the tank, which is where your hot water is being stored for use. Check below to see what the inside of a tank can look like after years of use.
  4. SPACE SAVINGS…Flexible Installation Options. Compact in design, tankless water heaters can be installed virtually anywhere. Our tankless water heaters mount on the wall, inside or outside. If you want faster hot water delivery, you can even relocate the tankless heater closer to the fixtures you use most often to also save water.
  5. ENERGY SAVINGS…Lower Water Heating Bills and Be Eco-Friendly Too. On-demand tankless water heater systems require no pilot light and can save about half the cost of your current water heating bill since there is no re-heating of water as with traditional water heaters. Tankless water heaters operate at an eco-friendly  83%-94% energy efficiency.
  6. LASTS LONGER…Durability & Low Maintenance. Professional quality hybrid or tankless water heaters from Charlotte-based Three Way Plumbing are extremely durable, lasting ups to 2.5x longer than traditional tank-type water heaters, and requiring little maintenance over their lifetime. They are also extremely well designed. If it ever needs to be serviced, any single part of the heater can be replaced and fixed… a huge advantage over a tank water heater!

View our video: Why Tankless Water Heaters


How much does it cost to operate a gas water heater? According to the Department of Energy testing critera based on a cost of $1.22 per therm used for gas, a standard 50-gallon tank averages about 258 therms or $315 per year to operate.  A standard tankless uses about 185 therems or costs approximately $225 per year to operate.  The Navien tankless high efficiency model uses about 154 therms and costs approximately $188 per year to operate. That's a savings of at least $127 per year based on the cost of $1.22 per therm and average family of 4. 
Tank Water Heater and Tankless Water Heater Comparison Chart:


How a Tankless Water Heater Works


Tankless water heaters from Charlotte-based Three Way Plumbing provide on-demand hot water without wasting any energy. When you don’t need hot water, you’re not paying to heat it.




At Three Way Plumbing, we are certified installers and certified service reps for Noritz , Rheem, Rinnai and Navien tankless water heaters and have worked on virtually all other brands. When companies are only certified as installers and are not also trained to service the units, they may not have the in-depth understanding of how Tankless Water Heaters operate to be able to provide you with the level of expertise you deserve when selecting the right unit for your home.


Rather than using the standard number on the chart, factors need to be specifically calculated for each home’s size, seasonal temperature variation and projected usage to select the size and model that will provide the best performance in that home. The majority of the times we go on a call for a problem with a hybrid or tankless water heater in the Charlotte area that we did not install, we find that the issue is that it was not the right model and size for the home. Another common issue is that there was an installation error such as not properly installing the proper venting that is needed due to the high heat production. When a tankless water heater is purchased at a box store, the venting and other parts and materials needed to complete the job are not included.


Before and after photos showing a tankless water heater replacing (and taking up much less space) than a traditional tank water heater:


Tankless Water Heaters Charlotte NC | Concord NC | Water Treatment
Tankless Water Heaters Charlotte NC | Concord NC | Three Way Plumbing Services

Contact Three Way Plumbing in Charlotte to learn if a tankless water heater is right for you.

Save an extra 10% when you have Three-Way Plumbing replace your water heater by becoming part of our Maintenance Agreement Partnership.
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Why choose 3-Way Plumbing?
  •   Highly Skilled Team
  •   Fully Stocked Trucks
  •   Precise Appointment Windows
  •   100% Satisfaction Guarantee
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