Omni Group Step Top Wood Stove 57ST-ACC Manuel D’Utilisation

Page  26

7038-159D

November 28, 2011

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Before installing, determine the following:

•  Type of chimney connector to be used

 

-  Single wall, vertical or horizontal

 

-  Double wall, vertical or horizontal

•  Consult page 30 for clearances to combustibles
•  Power outlet located close by for optional blower

Draft is the pressure difference needed to vent appliances 
successfully.  When  a  appliance  is  drafting  successfully,  all 
combustion  byproducts  are  exiting  the  home  through  the 
chimney.

Considerations for successful draft include:

•  Preventing negative pressure

•  Location of appliance and chimney

To be sure that your appliance burns properly:

•  During a low burn, the chimney draft (static pressure) should 

be approximately -.04 inch water column (W.C.) 

•  During a high burn the chimney draft should be approximately 

-.10 inch (W.C.) 

•  Measure the W.C at 6 inches (152mm) above the top of the 

appliance after one hour of operation at each burn setting.

•  Installation MUST comply with local, regional, state and 

national codes and regulations.

•  Consult  insurance  carrier,  local  building  inspector,  fi re 

offi cials or authorities having jurisdiction over restrictions, 
installation inspection and permits.

Negative pressure results from the imbalance of air avail-
able for the fi replace to operate properly. It can be stron-
gest in lower levels of the house.

Causes 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 conditioning
•  Imbalances of the HVAC air handling system
•  Upper level air leaks such as: 
 

-  Recessed lighting

 

-  Attic hatch

 

-  Duct leaks

To minimize the effects of negative air pressure:

•  Install the outside air kit with the intake facing prevailing 

winds during the heating season

•  Ensure adequate outdoor air for all combustion appliances 

and exhaust equipment

•  Ensure furnace and air conditioning return vents are not 

located in the immediate vicinity of the fi replace

•  Avoid installing the fi replace near doors, walkways or small 

isolated spaces

•  Recessed lighting should be a “sealed can” design
•  Attic hatches weather stripped or sealed
•  Attic mounted duct work and air handler joints and seams 

taped or sealed

•  Basement installations should be avoided