Whether you need to heat a single room or an entire home, Empire has direct-vent furnaces to suit your needs. Specifically designed for areas where flues or chimneys are not available or cannot be used. Removable front panels for easy cleaning and servicing. uses outside air to support combustion. inside air is warmed as it recirculates around a sealed chamber. This warm air heats the room cleanly and efficiently. Heat larger areas with Empires DV25 and DV35 direct-vent wall furnaces. delivers room-filling warmth, fits against an outside wall. A push of the button ignites the pilot with a matchless piezo system. Add an optional internal blower for even greater air circulation.