Tankless Water Heater Manufacturers Listing. For service in Ontario Call, (647) 931-5211

A list of tankless water heater manufacturer below consists of the more and less popular tankless brands, sold in North America and Europe. Some manufacturers offer only tankless water heaters and combi boilers while other makers also include other types for water and space heating.

We will cover tankless manufacturers whose products are using two of the most popular fuel sources, electric and gas (natural and propane).

If you would like to know who makes the best tankless water heaters use the links on the navigation bar, they are popular and among the best, or see our recommendation of the best models. There is also an article where we compare the best tankless models.

If you find tankless water heater manufacturers that we didn't list here, please let us know. Use the “contact us” form to send us a link.

Tankless water heaters manufacturers


American water heaters company is owned by AO Smith and their tankless models are very similar, if not the same.

Address: 1100 E Fairview Ave, Johnson City, TN, 37601-3504

Phone: (423) 434-1500


AO Smith

AO Smith is one of the largest water heating companies in North America and it produces mainly tank-type water heaters, and also several outdoor and indoor direct-vent models, which use Takagi technology.

Address: 11270 West Park Place, Suite 170. Milwaukee, WI 53224

Phone: (414) 359-4000   



Bosch is a German manufacturer of HVAC equipment, including tankless water heaters. Bosch also offers indoor and outdoor models; atmospheric, direct and power vent; energy efficient and Energy Star. Junkers is a popular European combi boiler brand and is part of Bosch Group.

Bosch US address: 340 Mad River Park, Waitsfield, Vermont 05673

Phone: (800) 503-5028


Bradford White

Bradford White is the water heater manufacturer from the US. Offers outdoor and indoor models; Energy Star qualified.

Address: 725 Talamore Drive, Ambler, PA 19002

Phone: (800) 523-2931


Chronomite Laboratories Inc

Chronomite Laboratories Inc is the manufacturer of electric tankless water heaters.

Address: 17451 Hurley Street, City of Industry, California, USA, 91744

Phone: (800) 447-4962



Eemax Inc. is the North American tankless water heater manufacturer of point-of-use and whole-house electric water heaters. Eemax heaters are designed for residential and commercial applications.

Address: 353 Christian Street, Oxford, CT 06478

Phone: (800) 543-6163



GE gas tankless water heaters are produced by AO Smith.

Phone:(800) 848-7620



Hubbell is the producer of the whole-house electric water heaters

Address: P.O.Box 288, Stratford, CT 06615-0288

Phone: (800) 647-3165



Navien is a Korean manufacturer of tankless water heaters and in the US they sell condensing water heaters, designed for residential and commercial applications. There are also gas combi water heaters for home heating.

Navien US address: 1371 Santa Fe Drive, Tustin, CA 92780

Phone: (800) 519-8794



Noritz is the tankless water heater manufacturer from Japan. Noritz offers indoor and outdoor models; atmospheric, direct and power vent; energy efficient, Energy Star and condensing tankless water heaters. Headquarters is in California, and branches in Dallas, Chicago, Atlanta and New York.

Noritz US address: 11160 Grace Avenue, Fountain Valley, CA 92708

Phone: (714) 433-2905



Japanese water heater manufacturer. Paloma produces indoor and outdoor models; atmospheric, direct and power vent; energy efficient and EnergyStar tankless water heaters. Designed for residential and commercial applications.

Paloma US address: 2151 Eastman Avenue, Oxnard, CA 93030

Phone: (805) 278-5499



North American water heating company owned by Paloma Industries. Rheem manufactures indoor and outdoor models; atmospheric, direct and power vent; energy efficient and Energy Star tankless water heaters. By its design, they are similar to Paloma tankless water heaters.

Address: 101 Bell Road, Montgomery, Alabama 36117

Phone: (334) 260-1500



Rinnai is the Japanese manufacturer of gas tankless water heaters. Rinnai produces both residential and commercial gas appliances, indoor, outdoor, Energy Star, direct, atmospheric and power vent models.

Rinnai US address: 103 International Drive, Peachtree City, GA, 30269

Phone: (800) 621-9419