RTEX-27 240-Volt 3-Chamber 27kW Electric Tankless Water Heater -Ranein Electric Tankless Water Heater, 27kW 240V on Demand Instant Endless Water Heater with LED Temperature Display for Residential Whole House Shower, Space Saving 0 galEcoSmart ECO27 240V 27 kW Electric Tankless Water Hea...