Tanklevss Water Heater Manufacturer Listing

Tankless water heater manufacturer listing below is consisted of popular and less known tankless brands, sold in North America and Europe. Some manufacturers offer tankless water heaters and combi boilers only while others have a huge list of water heating products.

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

If asking yourself who makes the best tankless water heater, use the links on the navigation bar, these brands are the most popular ones. There is also an article that you can use, where we compare the best tankless models.

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

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

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

Phone: (423) 434-1500

Web: www.americanwaterheater.com


AO Smith Co. is one of the largest water heating companies in North America with the focus on tank type models and with several outdoor and indoor, direct vent tankless models also.

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

Phone: (414) 359-4000

Web: www.hotwater.com


Bosch is German tankless water heater manufacturer that produces gas and electric heaters. Bosch also offers indoor and outdoor models; atmospheric, direct and power vent; energy efficient and EnergyStar. Junkers is 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

Web: www.boschhotwater.com

Read our Bosch tankless water heater review.


Bradford White - gas tankless water heater manufacturer from US. Offers outdoor and indoor models; EnergyStar qualified.

Address: 725 Talamore Drive, Ambler, PA 19002

Phone: (800) 523-2931

Web: www.bradfordwhite.com


Chronomite Laboratories Inc - manufacturer of electric tankless water heaters.

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

Phone: (800) 447-4962

Web: www.chronomite.com


Eemax Inc. is 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

Web: www.eemaxinc.com


GE gas tankless water heaters are produced by AO Smith Co.

Phone:(800) 848-7620

Web: www.geappliances.com


Hubbell water heater - producer of whole house electric water heaters

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

Phone: (800) 647-3165

Web: www.hubbellheaters.com


Navien is Korean manufacturer of tankless water heaters and in US sells 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

Web: www.navienamerica.com


Noritz is tankless water heater manufacturer from Japan. Noritz offers indoor and outdoor models; atmospheric, direct and power vent; energy efficient, EnergyStar and condensing tankless water heaters. Headquarter 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

Web: www.noritz.com

Read our Noritz water heater review.


Paloma - 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

Web: www.palomatankless.com

Read our Paloma water heater review.


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Rheem/Ruud - North American water heating company owned by Paloma Industries. Rheem manufactures indoor and outdoor models; atmospheric, direct and power vent; energy efficient and EnergyStar 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

Web: www.rheem.com.

Read our Rheem tankless water heaters review


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

Web: www.rinnai.us

Read our Rinnai tankless water heaters review.


Seisco - electric on demand water heater manufacturer.

Address: 241 West Airtex, Houston, TX. 77090

Phone: (888) 296-9293

Web: www.seisco.com


State Water Heaters - parent company is AO Smith. The Aurora On-Demand gas water heaters are very similar to the tankless water heaters of its parent company.

Address: 500 Tennessee Waltz Pkwy, Ashland City, TN 37015

Phone: (800) 365-8170

Web: www.statewaterheaters.com


Stiebel Eltron is the largest German water heating company that is well known for its point of use and whole house tankless electric water heaters. Tempra tankless model is one of the most popular models in North America.

Stiebel Eltron US address: 17 West Street, West Hatfield, MA 01088

Phone: (800) 582-8423

Web: www.stiebel-eltron-usa.com


Takagi - Japanese water heater manufacturer. Takagi offers indoor and outdoor models; atmospheric, direct and power vent; energy efficient, EnergyStar and condensing tankless water heaters. Designed for light residential and heavy duty commercial applications.

Takagi US address: 5 Whatney, Irvine, CA 92618

Phone: (888) 882-5244

Web: www.takagi.com


Titan offers electric tankless water heaters.

Address: 14629 SW 104 St#134, Miami, FL 33186

Phone: (888) 697-8456

Web: www.titanheater.com


European Boiler and Tankless Water Heater Manufacturers

Alpha heating solution - UK based combi boiler manufacturer, part of the Italian leading manufacturer of combi boilers, Immergas group.

Address: Nepicar House, London Road, Wrotham Heath, Seven oaks, Kent, United Kingdom, TN15 7RS

Phone: 01732 783 000

Web: www.alpha-boilers.com


Ariston - Italian manufacturer of combi boilers and water heaters.

Address: Viale Aristide Merloni, 45, 60044 Fabriano (AN), Italy

Web: www.aristonthermo.com


Baxi Group - UK based producer of water heaters and combi boilers.

Address: 16 Stanier Way, The Wyvern Business Park, Derby, DE21 6BF, United Kingdom

Web: www.baxigroup.com


Biasi - Italy

Address: via Leopoldo Biasi, 1 - 37135 Verona

Phone: (+39) 045/8090111

Web: www.biasi.it


Ferroli - Italy

Address: Via Ritonda 78/a - 37047 San Bonifacio (VR)

Phone: (+045) 6139411

Web: www.gruppoferroli.com


Immergas - Italian leader in heating industry. Designs and manufactures instantaneous water heaters, condensing boilers, combi boilers.

Address: Via Cisa Ligure 95, 42041 Brescello (RE) Italy

Phone: (+39) 0522/689450

Web: www.immergas.com


Vaillant - probably the most popular boiler and tankless water heater manufacturer in Europe.

Address: Head Office, Nottingham Road, Belper DE56 1JT

Phone: 01773 824141

Web: www.vaillant-group.com


Viessmann - high quality German tankless water heater manufacturer.

Address: Viessmannstra√ÉŸe 1, 35108 Allendorf (Eder)

Phone: (+49) 6452 70-0

Web: www.viessmann.com


Worcester Gas Boilers - UK

Address: Worcester, Bosch Group, Cotswold Way, Warndon, Worcester,

WR4 9SW

Phone: 0844 892 3000

Web: www.worcester-bosch.co.uk


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