Instruction manual

*Minimum dimensions of 3‐in. (76mm)

NOTE: Use any of the following combinations of openings:

A & B, C & D, D & E, F & G

L12F012

Fig. 6 -- Air for Combustion, Ventilation, and Dilution for

Outdoors

* Minimum opening size is 100 sq in. (64516 sq. mm) with

minimum dimensions of 3‐in. (76mm)

{ Minimum of 3‐in. (76mm) when type‐B1 vent is used.

L12F013

Fig. 7 -- Air for Combustion, Ventilation, and Dilution from

Indoors

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