Suburban Mfg 2558A Furnace; SF-FQ Series; LP Gas; Model Number SF-30FQ; 30000 BTU; Two Stage; Side Ducted; 8.5 Amp; 7-1/2 Inch Height x 17 Inch Width x 20 Inch Depth Attributes BTU Level: 30000 BTU Discharge Type: Side Type: LP Gas Stage: Dual Ignition Type: Direct Spark Ignition Width: 17 Inch Height: 7-1/2 Inch Depth: 20 Inch With Vent Assembly: No With Access Door: No   Product Description SF-FQ Models are designed for interior serviceability with a front (inside) gas connection and only a small vent terminal on the coach exterior, permitting installation up to 9 inches from the wall. Since no exterior access door is required, the SF-FQ is aesthetically appealing and a more economical installation choice. For design flexibility, all SF-Q Models feature identical cabinet dimensions and feature quiet, multi-ported stainless steel burners, sealed forced-draft combustion, automatic direct spark ignition and low amp draw. Features & Benefits Direct Discharge Furnaces With Attractive Grilles For Zone Heating Of Smaller RVs, Trailers, Truck Campers And Even Pop-Ups Maximum Heating Performance In A Low-Profile Design At Only 7-1/2 Inches High, They Can Be Easily Installed In Areas That Might Otherwise Be Left Unused Provides Maximum Heating Performance In A Ducted Unit, With Capacities From 20,000 To 40,000 BTUH Limited 2 Year Warranty