R
Castile Pellet Insert
E. Avoiding Smoke and Odors
Negative Pressure, Shut-Down and Electrical Power Failure
To reduce the probability of
Negative pressure in the house will resist this natural draft if not accounted for in the pellet appliance installation.
Heat rises in the house and leaks out at upper levels. This air must be replaced with cold air from outdoors which fl ows into lower levels of the house.
Vent Configurations
To reduce probability of reverse drafting during
•Installing the pellet vent with a minimum vertical run of 5 feet (1.52m). Preferably terminating above the roof line.
•Installing the outside air kit at least 4 feet (1.22m) below the vent termination.
To prevent soot damage to exterior walls of the house and to prevent
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
An outside air kit is recommended in all installations. The Outside Air Kit must be ordered seperately.
Per national building codes, consideration must be given to combustion air supply to all combustion appliances. Failure to supply adequate combustion air for all appliance demands may lead to backdrafting of those and other appliances.
When the appliance is roof vented (strongly recommended):
The air intake is best located on the exterior wall ori- ented towards the prevailing wind direction during the heating season.
When the appliance is
The air intake is best located on the same exterior wall as the exhaust vent outlet and located lower on the wall than the exhaust vent outlet.
The outside air supply kit can supply most of the demands of the pellet appliance, but consideration must be given to the total house demand.
House demand may consume the air needed for the appli- ance. 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.
•Maintain specifi ed clearances to windows, doors and air inlets, including air conditioners.
•Vents should not be placed below ventilated soffi ts. 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 6 inches (152mm) 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.
January 19, 2011 | Page 7 |