Quadra-Fire 31ST-ACC 用户手册

Page  6

7033-277C

March 2, 2007

R

Recommended 

Location

Marginal
Location

Location

Not

Recommended

 

Recommended

Location

 

Location NOT 

Recommended

Multi-level Roofs

Windward

Leeward

Outside Termination Cap

Draft is the pressure difference needed to vent appliances 
successfully.  Considerations for successful draft include:

 

•  Preventing negative pressure

 

•  Location of appliance and chimney

Negative pressure results from the imbalance of air avail-
able for the stove to operate properly.  Causes for this imbal-
ance include:

 

•  Exhaust fans (kitchen, bath) etc.)

 • 

Range 

hoods

 

•  Combustion air requirements for furnaces, water 

heaters and other combustion appliances

 • 

Clothes 

dryers

 

•  Location of return-air vents to furnace or air condi-

tioning

 

•  Imbalances of HVAC air handling system

 

•  Upper level air leaks

  

• 

Recessed 

lighting

 

 

•  Attic hatch opening

  

• 

Duct 

leaks

To minimize the affects of negative air pressure the following 
must be considered:

 

•  Install the outside air kit.  Install the intake on the 

side of the house towards prevailing winds during the 
heating season.

 

•  Ensure adequate outdoor air is supplied for combus-

tion appliances and exhaust equipment.

 

•  Ensure furnace and air conditioning return vents are 

not located in the immediate vicinity of the appli-
ance,

 

•  Avoid installing the appliance near doors, walkways 

or small isolated spaces.

 

•  Recessed lighting should be of “sealed can” design; 

attic hatches weather stripped or sealed; and attic 
mounted duckwork and air handler joints and seams 
taped or sealed.

•  Negative pressure can cause spillage of com-

bustion fumes, soot and carbon monoxide.

•  Appliance needs to draft properly for safety.