Air for combustion and ventilation – Desa CGP26D User Manual

Page 8

Advertising
background image

8

101827

AIR FOR

COMBUSTION

AND

VENTILATION

Continued

VENTILATION AIR

(Continued)

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills or ducts. You must provide
two permanent openings: one within 12" of the ceiling and one within 12" of
the floor. Connect these items directly to the outdoors or spaces open to the
outdoors. These spaces include attics and crawl spaces. Follow the National
Fuel Gas Code NFPA 54/ANSI Z223.1, Section 5.3, Air for Combustion and
Ventilation
for required size of ventilation grills or ducts.

IMPORTANT:

Do not provide openings for inlet or outlet air into attic if attic

has a thermostat-controlled power vent. Heated air entering the attic will
activate the power vent.

Figure 3 - Ventilation Air from Outdoors

Outlet
Air

Ventilated
Attic

Outlet
Air

Inlet
Air

Inlet Air

Ventilated

Crawl Space

To

Crawl

Space

To Attic

Advertising
This manual is related to the following products: