Empire Boulevard 36″ Vent-Free Linear Intermittent Pilot Fireplace with Remote Control - Propane GasBeautiful, elegant, and efficient. Your Empire Boulevard VFLB36FP90 36 fireplace will add value, ambiance, and warmth to your home. The Boulevard 36 single sided with 28,000 BTUs and 99. 9 % efficiency can add elegance to any home. All systems are available in Propane and Natural Gas. Designed to add drama and ambiance to any room, the vent free Boulevard 36 can serve as an effective zone heater when needed, and uses room air for combustion and