【Electric Tankless Water Heater】The V7B-180 is compact design for point of use anywhere, in the meanwhile it is able to provide luxury & endless hot water up to 2.8GPM with its powerful 18kW ...

Rheem’s RTEX-18 electric tankless water heater delivers impressive performance ... Bob Vila gives high marks to this 18kW powerhouse, which boasts an impressive 99.8 percent efficiency rating ...

Our best overall pick is the Stiebel Eltron Tempra 36 Trend Tankless Water Heater for its 7.5-GPM flow rate, 99 percent efficiency rating, and auto-modulation function.