

The clean-lined way to let an Osburn Stratford II's heat rise into the room or upstairs. The Modern gravity kit takes the hot air from the two 8-inch openings on top of the fireplace up adjustable telescoping sections into a single heat distribution box behind one slim decorative plate — no blower and no wiring. The kit is the plate, adjustable frame, distribution box, telescoping sections, two anchor plates and the screws; 8-inch rigid galvanized duct is needed only if your outlet sits higher than the sections reach. Keep the outlet 12 inches from a combustible ceiling, wall or mantel. $660.