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GAS-FIRED HEATER Installation Manual
Location of exit terminals of mechanical draft and direct-vent venting systems.
(Reference: National Fuel Gas Code ANSI Z223.1/NFPA 54 2002).
Fig. 7-2 Multiple Vent Spacing*
*Note: Exhaust must extend out 1 foot
Figure 7-4: Multiple Heater Installations
Fig. 7-3 Multiple Stainless Steel Horizontal Vent Kit Installation – Front View
Fig. 7-1