NAPOLEON BGD42N-D DIRECT VENT GAS FIREPLACE (ZERO CLEARANCE TOP OR REAR/45 degree VENT) Napoleon's Direct Vent Gas Fireplaces do not require a chimney and can be vented directly through a wall or roof. The direct vent draws its combustion air from outside while venting to the same outside atmosphere - thereby not consuming warm house air, nor competing with other appliances and furnaces for combustion air. Direct venting also eliminates drafts and heat loss associated with other fireplaces. Unit Includes: Millivolt remote control natural gas valve with built-in adjustable flame/heat control, special builder deluxe model includes porcelain reflective panels and 12" stainless steel gas flex connector with shut off installed on the unit, 20 ft wire pre-attached to the valve, firestop, dual receptacle junction box, pivoted heat resistant glass door, piezo ignitor, multi-level pan style burner, exclusive PHAZER glowing log set and charcoal embers, hardware. Bathroom/bedroom/bedsitting room approved. Suitable for mobile homes. 28,500 BTU's. TESTED AS A HEATER TO ANSI Z21.88 & 2.33