RSF Woodburning Fireplaces OPEL AP Owner's Manual View and Download RSF Woodburning Fireplaces OPEL AP owner's manual online. Residential Factory Built Fireplace. OPEL AP Indoor Fireplace pdf manual download. Opel 2 | RSF Fireplaces Available in Canada, the Opel 2 is part of our non-catalytic line of fireplaces. For areas where EPA certification is required (e.g. USA.), refer to the Opel 2C. The Opel is our most popular fireplace. Behind the elegantly shaped double doors of the Opel 2 burns a fire that reflects the traditions of our ancestors. Yet this is no ordinary fire.