Rinnai High-Efficiency Water Heaters

Goodbye cold showers, hello hot water on demand!

You might have heard a lot about what a tankless water heater is and why a tankless hot water heater is a smart purchase. For a good reason: the market is growing annually by nearly 6% and is expected to do so over several years.

Efficiency and space-saving are two main reasons for increasing interest in a tankless water heater. If you’ve been considering hopping on the propane tankless water heater bandwagon, you might take a close look at Rinnai tankless water heater options for your home.

Why wait for your water heater to heat more water? With a Rinnai tankless water heater, you get as much hot water as you need when you need it. A tankless water heater makes life easier for families taking a lot of showers or washing many dishes and clothes and who need a constant flow of hot water.

In addition to efficiency and saving space, other terms used to describe Rinnai propane tankless hot water heater products are “reliable” and “durable.” Rinnai has been producing various models of their tankless hot water heater since 1999.

Rinnai Tankless Hot Water Heaters

Currently, Rinnai offers a series of natural gas or propane tankless water heater models: four condensing, three non-condensing, and a hybrid condensing. The difference is that a condensing tankless hot water heater uses a dual heat exchanger, and a non-condensing tankless water heater utilizes a single heat exchanger. It’s a different way of venting and making the most of the unit’s heat.

With Rinnai, you can choose from tankless hot water heaters that allow for multiple shower use, or you might select a smaller unit for a smaller home or when hot water is less in-demand than it would be for a larger household.

Some benefits of a Rinnai water heater are: 

tankless water heater
  • Size: tankless water heaters can fit inside crawlspaces, closets, and cabinets
  • Durability: tankless water heaters last twice as long as standard water heaters
  • Convenience: you can push a button for hot water on-demand
  • Maintenance: no replacement costs; tankless water heaters are easier to repair
  • Low operating cost: it can cost as little as $220/year to run a tankless water heater, depending on the model


Condensing models are a bit more efficient since they reuse the exhaust heat, making them 98% efficient. The condensing Rinnai tankless water heater series, considered super-high efficiency models, are as follows:

  • RUR: eight models, four outdoor only, four indoor only; delivers hot water to up to six places around the home
  • RU: 16 models, eight outdoor, eight indoor only; provides hot water to up to four locations around the home
  • RUCS: four models, indoor only; has the highest output of all condensing models
  • RUS: four outdoor only models; compact design

The three models comprising the non-condensing HE+ series are the RL (four indoor, four outdoor), RLX (one indoor), and V (15 models varying from 3-5 fixtures, seven indoor, eight outdoor). The RL and RLX models feature WiFi monitoring and recirculation technology, while the V-series are compact and ideal for small- to medium-sized homes.

Some accessories you can add, depending on the model, include room motion sensors and voice-controlled technology for scheduling and monitoring.

Diversified Energy

When it’s time to bring hot water on-demand into your life, you can turn to Diversified Energy for purchase, installation, maintenance, and propane supply.

Serving all of North Carolina and parts of South Carolina and Virginia from eight service centers, as well as Mount Joy, PA, and surrounding areas, Diversified Energy delivers propane to 25,000+ customers through its automatic “watchdog” delivery system. Without monitoring or making a single call, you get the propane you need to be delivered when you need it.

Diversified Energy also lays out gas lines for new and existing homes, makes a repair to propane products, installs above and underground propane storage tanks, and responds 24/7 to emergency gas leaks. They also sell, install, and maintain other propane gas products, such as stoves, grills, and fireplaces.

Welcome a Rinnai tankless water heater and Diversified Energy into your home and bring the gift of perpetual hot water and a highly-rated, customer service-oriented propane company to your family. Together, Rinnai and Diversified will keep you in hot water in the best way possible.