30 gallon, gas, sealed combustion direct vent mobile home water heater, 30,000 btu, for installation in non-occupied area, natural gas or lp gas electronic convertible fuel control valve, glass lined, factory installed temperature & relief valve, 5,400' elevation, .63 energy factor, premium grade anode rod, 2" insulation, for manufactured mobile housing use only, unit dimensions: 58"h x 18"d, outside air required for proper & safe operation, roof jack vent kit, not included, no other roof jack or air inlet assemblies are approved for installation with heater, 6 year tank & parts limited warranty.