The Best Tankless Water Heater - August 2021

Based on the analysis of 7,207 reviews.



Top Choice Best Value
Ecosmart ECO 36 Electric Tankless product image


Rinnai V65IN Indoor Tankless Natural product image


Bosch 2 5 Gallon Electric Mini Tank Heater product image


Rinnai V65EN Outdoor Tankless Natural product image


Rinnai RL75iN Natural Tankless Gallons product image


Best Seller
Rinkmo Electric Tankless Water Heater 18KW 240V Instant Hot On Demand Residential Electric Water product image


Camplux Tankless Water Heater Electric with LED Display 120V Instant Water Heaters Under Sink product image


Tankless PROPANE Hydronic heating Compare product image


Hydro Master Isolator Tankless Pressure product image


Eccotemp I12 LP Indoor tankless heater product image

Top Tankless Water Heater Brands

Bosch Thermotechnology

BOSCH is a major worldwide supplier of technology and services including merchandise for domestic hot water generation.   Our operations cover Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology.

BOSCH improves quality of life globally with products and services which are innovative and spark enthusiasm. In short, BOSCH creates technology that is "Invented for life." When designing our programs, we pay careful attention to combining efficient use of natural resources, system flexibility, and consumer friendliness. By continuously developing new products and technology we work to provide you real value in functionality, comfort, and efficiency. We think that continuous innovation supports a cleaner, more healthy environment, and creates greater benefits for you. Whether you are replacing a secondhand tank water heater, then renovating a master bath, kitchen, cellar or building a new home, you can trust BOSCH for a premium excellent water heating option that's a perfect fit for your needs. With over 125 decades of engineering expertise, BOSCH products are made to work together seamlessly to permit professional contractors the ability to set up the most effective, customized system for your needs.  

See all Bosch Thermotechnology products