Tjernlund PAI-7 Combustion Air In-Forcer

Combustion Air In-Forcer; Capacity 2100000 BTU/Hour (Gas Draft Hood), 3700000 BTU/Hour (Fan Assisted/Power Burner), 3700000 BTU/Hour (Oil Fired Flame Retention); Air Flow Rate 1175 CFM; Size 32 Inch Length x 16-5/8 Inch Width x 18 Inch Height; Mounting Integral Bracket, Wall/Roof; Application Commercial; Includes Fan Proving Pressure Switch, Outdoor Air Pre-Filter