Mobile home water heater is specifically made for easy installation in mobile home applications and is designed to maximize your hot water output. With a 40 gal (nominal) tank capacity the EN6-40-DMHSW (240) delivers a first hour rating of 40 gal at an Uniform ENERGY FACTOR® of 0.91. This heater has dual 3500 W elements 240 VAC. The CoreGard™ sacrificial anode helps protect the tank from the corrosive effects of water and is accompanied by a 6 years limited tank warranty.