Kozy Heat Fireplaces Komfort Zone KZK-1510A Mode D'emploi page 9

1.4 Air Duct Run
IMPORTANT: The air duct pipe cannot run horizontally without a vertical rise.
IMPORTANT: The 1/2" clearance around the air duct pipes must be maintained.
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Use #KZK-410-6 UL181 Class 0 Air Duct piping to connect the plenum(s) to the unit.
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Hussong Mfg. Co., Inc. requires pipes to be listed as UL181 Class 0 Air Duct to connect the plenum(s) to the unit.
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Maximum Vent Run: 20' (6m)
Figure 1.8 - Minimum Vent Pipe Run - Only (1) Plenum Shown
KZK-1510A 9 Rev. 10 — May 2023