Heatilator BIR42 Owner's Manual page 9

WARNING! Risk of Fire!
WARNING! Risk of Fire and Smoke!
with doors should be operated only with doors fully open
FULLY OPEN
CORRECT
FULLY CLOSED
CORRECT
Fireplaces equipped
PARTLY OPEN
INCORRECT
PARTLY CLOSED
INCORRECT
accessory for operation.
WARNING! Risk of Fire or Asphyxiation!
DO NOT
WARNING! Risk of Fire! DO NOT install and or use any
WARNING! DO NOT
DO NOT
48 in. (121.9 cm)
Clear Space
Front of Fireplace
Sides of Fireplace Opening
24 in. (61.0 cm)
Clear Space