Flame Characteristics; Restricting Vertical Vents - Napoleon BGD42N Installation And Operating Instructions Manual

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9.2

FLAME CHARACTERISTICS

It's important to periodically perform a visual check of the pilot and
burner fl ames. Compare them to the illustrations provided. If any fl ames
appear abnormal call a service person.
9.3

RESTRICTING VERTICAL VENTS

Vertical terminations may display a very active fl ame. As this
appearance is not desirable, the vent exit must be restricted
using restrictor plate, W500-0205. This reduces the veloc-
ity of the exhaust gases, slowing down the fl ame pattern and
creating a more traditional appearance.
Remove the two screws on either side of the exhaust col-
lar inside the fi rebox. Install the plate as shown. Replace the
screws.
W415-0777 / A / 04.27.10
3/8" - 1/2"
FLAME MUST
ENVELOPE UPPER
3/8" TO 1/2" OF
THERMOCOUPLE &
THERMOPILE
54.2
TOP OF THE FIREBOX
RESTRICTOR PLATE