Designed for most manufactured housing applications, and space heating, garages, and hunting cabins. Ideal for tight replacement applications;Multi-speed blower and multi-fired burner for efficiency and long-life;Titanium treated aluminized steel process technology provides strength and durability to the heat exchanger for long life;Appliance finish protects against rust and corrosion;All units and each component are tested on the manufacturing line to ensure quality and safety;Beckett gas burners are standard