Get the #1 Selling Tankless Water Heater

Our  Plumbing Express mascot explains the problems solved by tankless water heaters.Call one of the best tankless installers in Atlanta to discuss a Rinnai Water Heater for your home.

Talk Tankless with us. Call(678) 439-9540

At Plumbing Express we supply and install the best performing Tankless Water Heaters. Give us a call with your general tankless questions and set up an appointment for your free estimate. Your family will thank you when you let Plumbing Express bring unlimited hotwater to your home.

Some Rewards of Rinnai Tankless Ownership:

Unlimited hot water
Energy Rebates
Longer unit life
Exact temperature delivery

How a Rinnai Tankless Water Heater Works

How a Rinnai Tankless Water Heater WorksWhen the need for hot water arises by turning on a shower, washing machine, dishwasher or faucet, cold water enters the Rinnai Tankless Water Heater from the inlet pipe at the bottom of the model. The PC board is then signaled to activate the flame igniter or ignition.

A combustion fan turns on to allow oxygen into the burner to ignite the flame as the gas control valve opens at a low frequency.Once an adequate flame is present the igniter stops sparking —beginning the next sequence of operation in a matter of seconds.

Water is heated as it passes through the coils of the copper heat exchanger, and exits from the hot water outlet pipe to travel through the pipes of the home or business to the water fixture where hot water is needed. For Condensing models, the water is preheated as it passes through a secondary stainless steel (latent) heat exchanger, capturing any extra heat (or latent heat) before it escapes into the vent system.

The gas valve and blower automatically adjust the incoming gas and oxygen to meet the water heating demands. If the demand is small, the Rinnai Tankless Water Heater can use a smaller flame and less gas. If the demand is greater, the flame can expand across the width of the entire burner to heat more water. The tankless water heater adjusts as needed to ensure the temperature set point is maintained. A digital controller allows the user to choose the desired temperature.

As the hot water fixture shuts off, cold water stops entering the tankless water heater and the flame diminishes. The combustion fan continues to operate at a low speed for a short period of time. This allows the exhaust of any leftover combustion gases in the system.

To learn more about Rinnai tankless water heaters, call Plumbing Express at (770) 599-5985.

Tankless technology that saves you time.

Never think about your hot water needs again: Innovative technology provides an endless supply of hot water whenever and wherever it’s needed – even for simultaneous uses at multiple fixtures. Showers and baths? Absolutely. Laundry and dishes? No problem. Prioritizing activities and scheduling hot water use is a thing of the past.

Save money, splurge on performance.

Designed for efficiency: Rinnai’s tankless technology features copper heat exchangers to provide maximum efficiency and uses up to 40 percent less energy* than a traditional tank.

Save energy: By operating only when hot water is needed, and no storage tank to heat and reheat water, our tankless technology helps save on energy and utility costs. The use of an electronic ignition means no standing pilot light that constantly uses energy.

A smart investment: Increase your home’s value with premium technology, increased energy efficiency, an improved Home Energy Rating System (HERS) Index Score and optimized LEED certification. Available energy efficiency rebates and tax credits offer the opportunity to help make your purchases more affordable.

Multiple sizes: Rinnai gives you options to right-size your installation and customize your efficiency.

Replace parts, not systems: Every part of a Rinnai Tankless Water Heater is replaceable. Components can be easily exchanged, if needed, versus replacing the entire system.

Tankless Water Heater FAQs

  • What is a tankless water heater?

    Tankless water heaters produce hot water on demand rather than maintaining a store of hot water in a tank. When a faucet or fixture is turned on, the Rinnai tankless unit senses the water flow and heads water to the pre-programmed temperature.

  • Why Rinnai?

    Rinnai is the market leading tankless water heater. Plumbing Express exclusively installs Rinnai because we believe they are the best.

  • Can a tankless water heater produce enough hot water for my home?

    Yes. No matter how large your home, we can configure a tankless system to meet your needs. Rinnai systems can meet the needs of every thing from a tiny house to a mansion.

  • Can I change the hot water temperature on my Rinnai?

    Yes. Rinnai tankless units can be controlled on the unit or by using a wifi mobile application.

  • Why choose Plumbing Express?

    Plumbing Express has the highest level of Rinnai dealer status and receives training at the Rinnai Headquarters in Peachtree City, GA. We provide quality service at a fair price.

  • How do I get a quote?

    Call us anytime for a quote. Our office staff can answer the basic tankless questions and schedule a quote.

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What People Have to Say

“Overall, our interactions with Plumbing Express were professional, courteous and timely. Will definitely use again!”

Patrick R., Decatur, GA

I had all of the old pipes in my 18-year-old home removed and replaced. Plumbing Express did an exceptional job on the interior work. They matched all of the tile and grout, cleaned the site, and made it impossible to tell they had even been there…

Testimonial 2

We had just moved here and needed all of our piping changed to PVC, so we took their advice and recommendations. After hearing from our neighbors, we figured they would do a good job. They ended up doing an excellent job!

Testimonial 3

Plumbing Express was punctual, got the work done in a very tight time frame, and the quality was good. The employees were very courteous, on time, and very professional.

Testimonial 4

This team is professional, thorough, and friendly. The interior of our home looks great. There is no trace of work being done… I actually think it looks better than it did before the job! The patching and paint work are impeccable.

Testimonial 5