There are several manufacturers which produce outstanding tankless water heaters. The only problem is that some brands are build high-quality, premium units that may be outside of the average household budget. Other brands build excellent mid-range units, while others provide entry-level items that are designed more to support an existing tank-based system.
Here are the best tankless water heater manufacturers and what to expect from them.
This brand is a continual favorite for online shoppers. It offers a variety of affordably priced tankless water heaters that offer between 2-5 gallons of hot water support per minute. Their models are about 50% lower in price than comparable brands and there are several options from which to choose.
EcoSmart tankless systems are ETL Certified to UL 499. Local product support is available through many major retailers, including Amazon, The Home Depot, and Ace Hardware Stores.
This brand was founded in 1925 as a family company. The Rheem brothers, Donald and Richard, began by building steel shipping containers and home appliances. They have built everything from musical instruments to semi-conductors. Today, this brand is the largest manufacturer of water heating products in North America.
EcoSmart is within the family of brands that falls under the Rheem name. Other brands include Eemax, Richmond, Ruud, and HTPG.
Rinnai has provided nearly 100 years of innovation in U.S. manufacturing. There are one of the only tankless water heater manufacturers that uses its own state-of-the-art testing laboratory in Canada, employing more than 600 accredited lab technicians, research engineers, and development engineers. All products meet or exceed CSA ad ANSI standards.
The brand is headquartered in Japan, with 20 subsidiaries and 85+ sales offices in 13 countries to provide a complete level of customer support, from purchase to installation. That level of support has led this brand to become the world’s leader in providing tankless water heater systems to homes.
What makes this tankless hot water system manufacturer unique is that it is only sold by licensed contractors. That means there are trained professionals assigned to your region to help you with your new system.
That also means one must be careful when purchasing a system from this brand online. Purchases from non-licensed entities may not be covered under the published warranty.
Takagi also provides an extensive series of online help options for owners, from plumbing diagrams to troubleshooting guides. There is also a complete set of instructions for professionals licensed by this brand to sell and install tankless systems.
This brand may be one of the newcomers to the hot water system industry, though they still have more than 60 years of manufacturing experience. Noritz offers a total of three different systems to provide homes with hot water through a customized approach. Their systems have more flexibility than other systems, including outdoor or indoor placement, without compromising the quality of the manufacturing process.
Noritz is also one of the few brands that owns every aspect of the manufacturing process. Every unit comes with a 12-year, non-prorated warranty.
Navien was founded in 2006 to focus on the condensing technology sector within the tankless industry. Since then, this brand has become one of the fastest growing companies in its industry within the North American Market. It is a wholly-owned subsidiary of KD Navien, which has 35+ years of industry experience with water heating and advanced boiler technologies.
This brand operates three training centers to maintain the consistency of its brand. Products are sold by and installed by professional contractors to ensure that every home receives the hot water they want and when they want it.
Bosch offers one of the best warranties in the industry today, offering replacement parts protection for up to 15 years. When your tankless water heater is installed by a professional Bosch-certified contractor, you receive an additional year on that warranty as well.
This brand also offers an exclusive design that is intended to prevent scale buildup from occurring. They use heat exchangers with a fully modulating vertical burner that allows for more evenness in the heating experience. When added to the turbulators, scale levels are much easier to control.
This brand is the only option for 2-degree precision control across the entire hot water temperature spectrum as well.
The best tankless hot water heater reviews can help you to determine which brand and model will best suit your needs. Find the model which fits within your budget and make the decision to upgrade today. We have comprehensive reviews and a buying guide here.