MiniMax® NT Series - H2Oco.com

Section III.Installation17INDOOR INSTALLATIONSMINIMAX NT VENTING GUIDELINES4'Vent Hood4'1' min.1' min.vent terminated at least 24"above any object within 10 ft.More Than10 ft.Ridge2 ft. min.Vent Cap3 ft. min.RoofJackRoofThimbleChimney/Gas VentVent for roof penetration installations:must extend at least 3 ft. higher than thepoint at which it passes through the roof,or as permitted by local code.must use a roof thimble through theroof penetration.must terminate with an approved (listed)roof jack, storm collar, and vent/weather cap.Vent pipe extension:must be the same diameter as thevent connector.must be suitable for use with category IIIappliances with flue gas temperature ratingsless than 400 deg. F.may use a single wall vent pipe withpermanently sealed seams, joints andproper insulating materials.Vent Hood3'7'Force Air Inlet4'Vent Hood1' min.above gradeWalkwayVent termination for side wall installations:Recommended sources forside wall Vent Hood;see "Section Venting".must be not less than 7 ft. above public walkways.must be at least 3 ft. above any outside air intake located within a 10 ft. radius.must NOT be within 3 ft. of an inside corner of the structure.must be at least 1 ft. above grade.must be located the following distances away from any door, window, or gravity air inlet:4 ft. below4 ft. horizontally1 ft. aboveAir SupplyClearances indicated are for non-mechanical air supply inlet to the building.For mechanical air supply inlet, a minimum horizontal clearance of 10 feetshould be maintained away from the vent termination.Figure 12.Rev. D 12-22-04 P/N 472235