Osburn OB02401 - Manual (Page 13)

13
The more extended the insert, the greater the heat transfer to the room. When installed as an
extended insert, the front edge of the air jacket will be installed flush with the fireplace facing.
Otherwise the unit can be moved back as much as 3 3/4" (95 mm) or any position in between.
The position chosen will depend on your own preference for most installations, your current
configuration, the compliance with the preceding installation instructions and compliance with the
building code requirements. To determine the minimum and maximum protrusion of the insert,
refer to table Data for floor protection calculation.
Data for floor protection calculation
MAXIMUM
EXTENDED
A
B
(Note 1)
C E AIR JACKET
Smaller
than 6 ft 2 *
Bigger or
= to 6 ft 2 *
INCHES 16" 20"
CAN: 18"
USA: 16"
7" 8 1/2" Flush with
fireplace
facing
MILLIMETRES 406 mm
508
mm CAN: 457 mm
USA: 406 mm
178 mm 216 mm
MINIMUM
EXTENDED
A
B
(Note 1)
C E AIR JACKET
Smaller
than 6 ft 2 *
Bigger or
= to 6 ft 2 *
INCHES 16" 20"
CAN: 18"
USA: 16"
3 1/4" 12 1/4" Back from
fireplace
facing 3 3/4"
MILLIMETRES 406 mm
508
mm CAN: 457 mm
USA: 406 mm
83 mm 311 mm
*Refers to masonry fireplace opening.