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Tankless Water Heater

You may be getting ready to remodel or start construction on a new home and would like to explore the latest technology. Maybe your traditional tank water heater is unable to keep up with your family’s hot water needs. Perhaps you’d like a more energy efficient solution. After all, water heating amounts to nearly 20% of a home’s energy costs. Of course, many of our customers choose tankless because they value the freedom and convenience of having an endless supply of water for their family.

The smart choice is the #1 choice

When choosing the right model, be sure to work with a Rinnai installer to determine select the right tankless water heater to suit your needs and meet your expectations. Ask questions such as:

  • Do I run out of hot water?
  • Do I want to run multiple showers or do the laundry and wash dishes at the same time?
  • Do I want to fill my garden tub with hot water (garden tub = 2 shower heads)?
  • Do I make the decision to do chores that require hot water strategically during different times of the day?
  • Do I want a recirculation solution to get hot water faster?

Things to Consider When Purchasing a Rinnai Tankless Water Heater

Proper Installation

Rinnai recommends that the tankless water heater installation should be performed by a licensed contractor who is trained to handle the plumbing, gas, electrical and venting aspects of a tankless water heater and is aware of all local and national gas fuel codes. Having a non-licensed professional perform the installation can cause operational and performance issues.

Location of Installation

The clean, modern and space-saving design of Rinnai Tankless Water Heaters gives you the flexibility to install on virtually any wall inside your home—not just in the utility room. And to save even more space, you can even mount a Rinnai Tankless Water Heater on the outside wall of your home.


Depending on placement within the home, interior models of Rinnai Tankless Water Heaters can vent vertically through the roof or horizontally through an exterior wall. Rinnai offers multiple venting options for the super high-efficiency models that offer optimum safety and performance. Not to mention convenience and ease of installation for your installer.

Gas Line Sizes and Fuel Types

The Rinnai product line of tankless models are available for natural gas or liquid propane fuel types, which contributes to increased efficiency and lower carbon emissions. These units are designed to provide maximum performance and operating efficiency using either a 1/2″ or 3/4″ gas line.

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