P35i Fireplace Insert
B. Avoiding Smoke and Odors
Negative Pressure, Shut-down, and Power Failure:
To reduce the probability of
Heat rises in the house and leaks out at upper levels. This air must be replaced with cold air from outdoors, which flows into lower levels of the house. Vents and chimneys into basements and lower levels of the house can become the conduit for air supply, and reverse under these conditions.
Outside Air:
Harman Home Heating and Hearth & Home Tech- nologies recommend attaching outside air in all installations, especially lower level and main floor locations.
Per national building codes, consideration must be given to combustion air supply to all combustion appli- ances. Failure to supply adequate combustion air for all appliance demands, may lead to
When the appliance is
When the appliance is roof vented: The air intake is best located on the exterior wall oriented towards the prevailing wind direction during the heating season.
The outside air connection will supply the demands of the pellet appliance, but consideration must be given to the total house demand. House demand may consume some air needed for the stove, especially during a power failure. It may be necessary to add additional ventilation to the space in which the pellet appliance is located. Consult with your local HVAC professional to determine the ventilation demands for your house.
The outside air kit consists of a flue stub pipe, fiberglass gasket, silicone gasket, intake box and a section of flex pipe.
An adjustable chimney intake extension, part #
To install outside air, use kit part number
Vent Configurations:
To reduce probability of reverse drafting during
•Installing the pellet vent with a minimum vertical run of five feet, preferably terminating above the roof line.
•Installing the outside air intake at least four feet below the vent termination.
To prevent soot damage to exterior walls of the house and to prevent
•Maintain specified clearances to windows, doors, and air inlets, including air conditioners.
•Vents should not be placed below ventilated soffits. Run the vent above the roof.
•Avoid venting into alcove locations.
•Vents should not terminate under overhangs, decks or onto covered porches.
•Maintain minimum clearance of 12 inches from the vent termination to the exterior wall. If you see deposits developing on the wall, you may need to extend this distance to accommodate your installation conditions.
Hearth & Home Technologies assumes no responsibility for, nor does the warranty extend to, smoke damage caused by reverse drafting of pellet appliances under
Do not connect this unit to a chimney flue servicing another appliance.
NOTE: The restriction of not venting more than one appliance to the same flue applies to the U.S. specifically. While it is not recommended that you use the same chimney for more than one appliance, in Canada certain exceptions may be made. Be sure to contact your building code inspection official to see if this option is allowed in your area, and to find out the specific requirements for such an installation.
Do not connect this unit to any air distribution duct or system.
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