Rheem Tankless Water Heaters

In 1925, the Rheem Manufacturing Company was founded in Emeryville, California by two brothers. Donald Rheem and Richard Rheem shared a mutual vision of building a brand that consumers could trust in – for generations.

In Rheem’s nearly 100 year history, the brand has developed and produced a wide variety of products, which range from steel shipping containers to musical instruments to gas ranges. Today, the company has evolved to focus solely on the design and production of products for cooling, heating, water heating, spa/pool heating, and commercial refrigeration. It is the only company in the world to do so. Rheem is the single largest producer of water heating products across North America.

My 2018 Rheem Tankless Water Heater Reviews:











6.4 GPM



Rheem RTGH-95XLN


9.5 GPM


In 1980, the brand opened a new facility in Montgomery, Alabama that is primarily focused on producing water heating products. The facility is still there today and has become one of Rheem’s most profitable manufacturing centers. It was from this facility in 2010 that Rheem introduced the world’s first condensing tankless water heater with an integrated heating and water system. It was the first of its kind to be produced by one manufacturer and have one warranty. Rheem is also the parent company of EcoSmart – another popular line of tankless water heaters.

From its humble beginnings, the Rheem brand has grown exponentially. Currently, the company has manufacturing centers in North Carolina, California, Alabama, Texas, Arkansas, Indiana, and Georgia, as well as other locations in Mexico and Canada. Its products are marketed across the world.

Rheem tankless water heaters are crafted with the goal of providing the convenience and comfort that comes with having an endless supply of hot water. Their electric tankless water heaters provide solutions for single faucet or shower applications, while their gas powered tankless heaters offer the perfect hot water solution for large homes with busy families. Their Performance line of tankless water heaters is designed to fit any budget, lifestyle, and home. It is sold only in the United States. Rheem’s other line is their Professional Series, which is designed for commercial applications, and is available exclusively through Rheem’s contractor partners.

We have rated the Rheem products as some of the highest in the industry.  To see where Rheem compares with out top brands read our buying guide here: https://www.householdwatersystems.com/tankless-water-heater-reviews/.