That typically translates into less maintenance, fewer floods, and no more running out of hot water mid-shower. We’ve chosen the Rinnai RU199iN Tankless Water Heater as our best overall pick for ...
though – you’ll need a 240-volt connection and a 40-amp circuit breaker to power its 9,600-watt heating element. Rheem’s RTEX-18 electric tankless water heater delivers impressive ...