Rinnai water heater is a subsidiary of Rinnai Corporation which is wholly owned by Rinnai Japan.

Rinnai Corporation has been marketing as well as distributing water heaters and other innovative products in the North America since 1974.

Rinnai was founded in 1920 by Hidejiro Naito and Kanekichi Hayashi and since then they have grown their product line from spa heaters to tankless water heaters, fireplaces, direct vent wall furnaces, portable cook tops, hydronic air handlers, and commercial grade rice cookers.

In 2001, Rinnai relocated to a new state-of-the-art research, training, and distribution facility in Peachtree City, Georgia.


Rinnai® Condensing – The condensing water heating technology by Rinnai offers several lifestyle benefits including continuous hot water. This technology also enables the running of multiple heaters or hot water appliances simultaneously.

The unique condensing design by Rinnai consists of two innovative and state-of-the-art heat exchangers that help it to achieve optimum water heating value per cubic foot of propane or natural gas.

Rinnai’s condensing process is able to deliver approximately 95 percent of thermal efficiency, which can be translated into energy savings. The energy saving is higher in Rinnai water heaters vis-à-vis traditional gas tank water heaters.

Concentric venting system – The concentric venting system in Rinnai has been specifically designed to enhance gas appliance venting. This makes the Rinnai water heaters safer as well as easy-to-install.

The concentric venting design in Rinnai water heaters is safer because of the polypropylene inner pipe that can withstand a varying flue temperature condition experienced through the life of the product.

The concentric venting system created by Rinnai uses only one pipe, which is fitted and locked into its place without using any glue or solvent and to a great degree the risk of gaps is eliminated.

ENERGY STAR® rating – The U.S. Department of Energy’s and Environmental Protection Agency has awarded Rinnai water heaters with the exclusive Energy Star rating.

Rinnai tankless water heaters received the ENERGY STAR rating as they have been able to maintain a minimum Energy Factor (EF) of 0.82 as well as a minimum gallons-per-minute flow of 2.5 at a 77-degree Fahrenheit rise.


Today, Rinnai water heater is considered as one of the most innovative products in the industry. Water heater manufacturing units of Rinnai have been awarded the ISO 9001 and ISO 14001 certification and is also the recipient of Super Nova star award presented by Alliance for energy saving products.

Their product catalogue consists of a variety of tankless water heaters that has more capacity and is highly energy efficient. Some of the things that Rinnai specializes in include:

  1. 40% energy savings as compared to 40-gallon gas tank or 40-gallon electric tank water heaters
  2. Flexible installation and space savings as they can be installed in any wall within your home or outside.
  3. The compact design of Rinnai water heaters helps in saving on water consumption as the waiting time for hot water is greatly reduced. This leads to water conservation.
  4. Each Rinnai water heater is SCAQMD approved. This simply means that Rinnai units produce low NOx (40 PPM or less) and there is less CO2 emissions as well. This contributes to cleaner air within the home.


Rinnai offers an impressive range of water heaters and other heating solutions like boilers, direct vent wall furnace, hydronic air handler, indoor fireplaces etc.

Rinnai has been popular due to their state-of-the-art innovative products that are energy efficient and offer high performance and durability. Here are some of the popular models of Rinnai Tankless Water Heaters:

  1. RC80HPe: 8.0 Gallons per minute
  2. RC98HPe: 9.8 Gallons per minute
  3. R63LSe2: 6.3 Gallons per minute
  4. R75LSi : 7.5 Gallons per minute
  5. R94LSe : 9.4 Gallons per minute
  6. R98LSe : 9.8 Gallons per minute
  7. V53e   : 5.3 Gallons per minute


R94LSe – 9.4 GPM Tankless Water Heater

Price:    $1,196.00
Energy Efficiency: 95%

1.    Qualified for Federal Tax Credit
2.    Sleek, compact, easy to install
3.    ENERGY STAR qualified
4.    Available with MC-91-1 digital controller with error code indicator
5.    Works with propane or natural gas
6.    Temperature range with controllers: 98°– 185° F
7.    12-year limited warranty on heat exchanger for residential installations


If you are searching for an energy efficient, easy to install, tankless water heater then Rinnai offers this and much more.

The Rinnai water heater is available for both residential and commercial uses, and also for indoor as well as outdoor applications. One of the biggest advantages is that you will never run out of hot water!

You can purchase products directly from the RINNAI website, or from other online retailers.

Back from Rinnai to Water Heaters Reviews

Back from Rinnai Water Heater to Hot-Water.com

One Response to “Rinnai Water Heater – Energy Efficient And Easy To Install Heaters”

  1. DO NOT BUY A RINNAI. They break down within three years and then you cannot get parts. Mine has been out of service for two weeks now and we can’t get an answer out of Rinnai as to when we might get the parts. So when (not if) your Rinnai breaks down, you will have no hot water for weeks.

Leave a Reply