Today only get the Ecosmart ECO 27 Electric Tankless Water Heater for only $348 (regularly $569)! That’s the lowest recorded price ever for this model! This is a highly rated water heater with 4.5 stars and 548 customer reviews. Required Breaker Quantity: Three 40 Amp Double Pole Recommended Electrical Panel: 200 Amps NEVER run out of hot water with an ECOSMART tankless water heater. Save