Installation Guide



The air that leaks around doors and windows may provide
enough fresh air for combustion and ventilation. However, in
buildings of unusually tight construction, you must provide
additional fresh air.
     

       
    







 weather stripping has been added on openable
windows and doors
  
      
 

  
 

  
   

 
 

  





 


This fresh air would come from an adjoining
space. When ventilating to an adjoining space,
you must provide two permanent openings: one within 12"
of the ceiling and one within 12" of the on the wall
connecting the two spaces (see Figure 1). You can also
remove door into adjoining room (see Figure 1). Follow
the National Fuel Gas Code ANSI Z223.1/NFPA 54, Sec-
tion 5.3, Air for Combustion and Ventilation for required
size of ventilation grills or ducts.



  
  


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 Connect
these items directly to the outdoors or spaces open to the
.secaps lwarc dna scitta edulcni secaps esehT .sroodtuo
Follow the National Fuel Gas Code ANSI Z223.1/NFPA
54, Section 5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
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.


































Exhaust fans, replaces, clothes dryers, and fuel burning ap-
p
liance
s
draw air from the house to operate. You must provide
adequate fresh air for these appliances. This will ensu
r
e proper
venting of vented fuel-burning appliances.


The following are excerpts from National Fuel Gas Code
ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion
and Ventilation.
All spaces in homes fall into one of the following
1. Unusually Tight Construction
2.
The information on pages 5 and 6 will help you classify
your space and provide adequate ventilation.



and
and