The ProLine® Mobile Home gas water heater is convertible for propane and natural gas and is designed and to meet a wide range of needs of Manufactured Housing installations. Featuring a 30 gal (nominal) tank and a 35500 Btu gas burner, the GS6-30-MHG Atmospheric Vent delivers a first hour rating of 63 gal and a recovery rate of 36 gph. With an 0.61 Uniform Energy Factor, this water heater is not ENERGY STAR® qualified. It carries a 6-year limited tank warranty, and meets Low NOx emission requirements.