Does a replacement furnace in a manufactured home have to be listed for installation in manufactured homes?
No. Refer to the State of Oregon Manufactured Dwelling and Park Specialty Code. Chapter 6, Section 6-3.5 states in part; (b) Furnaces installed in a manufactured dwelling after the completion of the initial sales contract shall be listed but do not have to be listed for manufactured home or mobile home use; (c) Fuel-burning furnaces shall be installed to provide for the complete separation of the combustion system from the interior atmosphere of the manufactured dwelling by: The installation of a listed direct vent (sealed combustion system) appliance; or The installation of the appliance within an enclosure accessible only from outside the manufactured dwelling so as to separate the appliance combustion and venting systems from the interior atmosphere of the manufactured dwelling. There shall not be any door, removable access panel, or other opening into the enclosure from the inside of the manufactured dwelling. Any openings or penetrations for ducts return air inlets, piping or wiri
