Furnace; NT Series; LP; Model Number NT-16SEQ; 16,000 BTU; 1 Stage; Direct Discharge; 2.8 Amp Draw; 9-3/8 Inch Width x 9-1/2 Inch Height x 22-1/2 Inch Depth; 45 Pounds; With Energy-Saving Solid State Electronic Ignition The "Q" stands for "QUIET." Suburban Q Series furnaces have been redesigned to be significantly quieter. Increasing the efficiency of the furnace blower to deliver more CFM, allowed Suburban Design Engineers to lower the motor RPM to deliver the same amount of air but at a substantially lower sound level. Why "talk over" the furnace when you don't have to with the Suburban Q Series furnace. Depth (IN) : 22-1/2 Inch Type : LP Gas BTU Level : 16000 BTU Stage : Single Discharge Type : Direct Discharge Ignition Type : Energy-Saving Solid State Electronic Ignition Width (IN) : 9-3/8 Inch Height (IN) : 9-1/2 Inch With Vent Assembly : Yes Features Incredibly Compact, Lightweight And Efficient Direct Discharge With Attractive Grilles For Zone Heating Of Smaller Interiors Limited 2 Year Warranty ; With Gasket-Sealed Vent Assembly.