Description Manuals and Guides Williams Furnace Vent Extension for Direct Vent Furnaces. It is for use with walls that are 9 - 15 inches thick. 15" Extension for a 22,000 BTU Direct Vent Furnaces, model 22038 and 30,000 BTU Direct Vent Furnaces, model 3003
GE AZ45E15DAB 15,000 BTU Class Zoneline PTAC Air Conditioner with Electric Heat - Power Cord Included $925.00 $859.00