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...Gas inserts e insert model ng lp fuel type natural propane minimum supply pressure w c kpa manifold high low orifice size altitude ft dms input btu h m kw maximum vent sizing co linear approved venting systems flex fpi astrocap alternate caps dva vc vertical termination cap vch wind gk adapter with flashing in areas of consistently winds we recommend using the simpson dura system and air intake pipe must be attached to inlet collar unit dimensions mm optional spacer fireplace from side walls a for regency are shown following diagrams ceiling b min mantel height max depth d alcove width f hearth g i wall have clearance on one opening profile faceplate is prole because extreme heat this emits clearances critical combustible mantels note non may installed at lower if framing made metal studs covered board top can anywhere shaded area or hi...