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6.7 Provide a raised platform for any furnace, water heater or other 6.11 Note on plan: Gas vents and device in the garage which may noncombustible piping,in walls, develop a spark or flame so that the passing through three floors or less spark or flame will be at least 18" shall be effectively draft-stopped at above the garage floor. UMC, each floor or ceiling with Section 308.0. noncombustible material. UBC Section 711.3. 6.8 Show the source of combustion air to furnace in compliance with Where a water heater and furnace Chapter 7,Table No.7-1, UMC. The are shown side by side, indicate minimum free area of both the that they will be separately vented upper and lower combustion air or detail the combined vent openings when taken from inside or connector on the plans, sized in outside of building shall not be less accordance with the GAMA Venting than 100 square inch each and Tables. located within 12" of floor and ceiling,with a maximum input rating 6.13 Provide dryer vent to exterior. of 100,000 BTU/HR. Unless otherwise permitted or required by the dryer 6.9 When all combustion air is taken manufacturers installation from the outdoors one opening is instructions and approved by the permitted. The opening shall equal building official,domestic dryer 1 sq.in.per 3,000 BTU/HR input,but moisture exhaust ducts shall not no smaller than vent flow area. exceed a total combined horizontal and vertical length of 14 feet(4267 6.10 Furnace shall not be installed in any mm),including two 90-degree bedroom,bathroom or In a closet or elbows. Two feet(610 mm)shall be confined space with access only deducted for each 90-degree elbow through such room, unless in excess of two. UMC,Section specified as direct vent appliance, 504.3.1. enclosed furnace or electric heating appliance. UMC,Section 904.5. 14