Desa RN30B, CGN18B Fresh Air For Combustion And Ventilation, Continued, Ventilation Air

FRESH AIR FOR COMBUSTION AND VENTILATION

Continued

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 2). You can also remove door into adjoining room (see option 3, Figure 2).

WARNING

WARNING ICON G 001

Rework worksheet, adding the space of the adjoining unconfined space. The combined spaces must have enough fresh air to supply all appliances in both spaces.

Ventilation
Grills	Or
into Adjoining	Remove
Room,	Door into
Option 1	Adjoining
	Room,
	Option 3

12"

Ventilation Grills

Into Adjoining Room,

Option 2

12"

Figure 2 - Ventilation Air from Inside Building

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