Table of Contents
Advertisement
3.5 Maintaining The Fire
Your Osburn insert will work best if a thick bed of hot embers is maintained in the bottom of the
firebox, and a minimum of two large pieces of seasoned fuel are added. Combustion efficiency is
largely related to establishing a hot ember bed, and hot firebox temperatures. The quicker the insert
and fuel get up to operating temperature, the better. A small intense fire is preferred to a large
smoldering fire, both to improve combustion efficiency and to reduce the amount of creosote emitted.
The best performance will be achieved by adding relatively small amounts of fuel to a well established
ember bed, and then operating with the air inlet control open long enough to achieve a hot fire.
Cordwood should be placed with air in between individual pieces. Use a poker to make an air channel
in the embers below the wood, this will allow air to flow under the wood for a more efficient burn.
Extended burn times can be accomplished by first operating the insert on a full load with the air inlet
controls wide open. Once the fire is well established, and the moisture has been driven out of the
wood, reduce the air control to a lower setting. The unit should then burn cleanly without smoldering.
If the fire smolders without flame, re-establish a hotter fire before moving the air control to the lower
setting. A yellow flame burning in the top of the firebox is a good indication of a clean efficiently
burning fire.
Refueling technique is important for good performance. The best efficiency and performance from
your insert can be achieved by adding partial loads of fuel and allowing them to get up to operating
temperature before adding additional fuel. Adding a large amount of fuel at one time will increase the
time required to get the fuel up to its ignition temperature, and an extended time to reach optimal
performance. When refueling, open the air control or hold the door partially open 1" (25 mm) or less,
long enough (less than 5 minutes) so that the fire has well established flames. When refueling, care is
required to ensure that fuel or embers do not fall out of the door opening.
3.6 Fan Operation
1. The fan in your wood insert is heat-activated. The insert needs to be hot before the fan
starts working. This may take up to one hour, depending on how hot the fire is.
N
:
OTE
P
E
REVENT
2. You may shut the fan OFF using the variable speed control knob located on the left side of
the fan assembly.
E
T
F
C
NSURE
HE
AN
ORD
S
O
LECTRICAL
HOCK
R
I
N
I
C
S
OT
N
ONTACT
F
D
. D
N
IRE
AMAGE
O
OT
24
W
A
S
O
ITH
NY
URFACE
R
C
B
T
UN
ORD
ENEATH
T
I
T
F
HE
NSERT
O
.
I
HE
NSERT
Advertisement
Table of Contents
