The combination of fan-forced efficiency, counterflow heat delivery and sealed combustion makes COZY Direct-Vent Counterblow Wall Furnaces the perfect heater for multi-story units, room additions, garage apartments, vacation homes, and more. COZY Top-Vent Counterblow Wall Furnaces can be mounted on any inside o outside wall, allowing maximum installation flexibility. The powerful, thermostatically controlled blower draws cool air into the upper grill and delivers warm air at floor level, distributing heat uniformly throughout the room.