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6.14 Furnace may be installed in the attic 6.16 Vent Termination. Indicate that <br /> provided an opening and Type B or BW gas vents with listed <br /> passageway as large as the largest vent caps 12 inches in size or <br /> piece of the furnace is provided smaller shall be permitted to be <br /> within 20 feet of the furnace. The terminated in accordance with Table <br /> passageway shall have a 24" width 8-A, provided they are located at <br /> floor and not less than 30" in depth least 8 feet from a vertical wall or <br /> in front of the firebox side. Provide similar obstruction. All other Type <br /> a permanent electric outlet and light B gas vents shall terminate not less <br /> fixture at furnace area, switched at than 2 feet above the highest point <br /> access opening. UMC, Section where they pass through the roof <br /> 908.0. and at least 2 feet higher than any <br /> portion of a building within 10 feet. <br /> 6.15 Furnace in a closet or alcove shall <br /> not be less than 12"wider than the TABLE 8-1 <br /> furnace and shall have a min.clear VENT TERMINATION ABOVE ROOF <br /> working space not less than 3" <br /> along the sides,back and top of the Minimum Height <br /> furnace. UMC,Section 904.1 from Roof to <br /> Lowest <br /> Roof Slope Discharge <br /> Opening <br /> Flat to 6/12 1-0 <br /> Over 6112 to 7112 1-3 <br /> Over 7/12 to 8/12 1-6 <br /> Over 8112 to 9112 2-0 <br /> Over 9112 to 10112 2-6 <br /> Over 10112 to 11/12 3-3 <br /> Over 11112 to 12/12 4-0 <br /> 15 <br />