Vermont Castings 2460 Instruction Manual

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19
Dutchwest
7001135
Use the Air Control Settings 
that Work Best for You
No single combination of control settings will fit every 
situation.  Each installation will differ depending on the 
quality of the fuel, the amount of heat desired, and how 
long you wish the fire to burn.  
Control settings also depend on your particular instal-
lation’s “draft,” or the force that moves air from the 
stove up through the chimney.  Draft is affected by such 
things as the height, type, and location of the chimney, 
local geography, nearby obstructions, and other factors.
Too much draft may cause excessive temperatures in 
the stove. On the other hand, too little draft can cause 
backpuffing into the room and/or the “plugging” of the 
chimney and catalytic burner.
How do you know if your draft is excessively high or 
low?  Symptoms of too much draft include an uncontrol-
lable burn or a glowing-red part of the stove or chimney 
connector.  A sign of inadequate draft is smoke leaking 
into the room through the stove or chimney connector 
joints.
When first using the stove, keep a record of the results 
you achieve from different control settings. You will 
find that specific control settings will give you a fixed 
amount of heat. It may take a week or two to determine 
the amount of heat and the length of burn you should 
expect from various control settings.
Notice that the probe thermometer on the stove top tells 
you the temperature of the catalytic burner only; it does 
not tell you how hot the firebox is. Normal range for the 
catalyst is 600 to 1400˚ F (315 to 760˚C ). The catalyst 
temperatures are very intense (far more intense than 
any other part of the stove) but they are also very local-
ized. 
You should put a magnetic surface thermometer on the 
side door. This is the only single-thickness area of the 
firebox, and it’s a handy location since you’ll use the 
side door more than any other. 
The normal range of firebox temperatures is 400 to 
650˚ F (190 to 330˚ C). Temperatures below this range 
can encourage creosote formation in the stovepipe and 
chimney; higher temperatures can cause stove parts to 
burn out prematurely.  Always operate the stove accord-
ing to firebox temperatures. Besides the air control, you 
can manage the stove’s heat output and burn time by 
how much wood you load at at a time. 
Notice that changes in the weather have a strong effect 
on chimney draft. Higher outdoor temperatures and 
lower air pressure both weaken draft; lower tempera-
tures and higher air pressure encourage a stronger 
draft. An exception to this is in installations with outdoor 
chimneys; since these lose heat to the outdoors, it 
takes longer to warm them up initally, and it takes more 
heat to keep them warm, especially during very low 
temperatures outdoors. 
Most installations do not require a large amount of 
combustion air, especially if adequate draft is available.  
Do not attempt to increase the firing rate of your heater 
by altering the air control adjustment range outlined in 
these directions.
In some newer homes that are well insulated and 
weather-tight, poor draft may result from insufficient 
air in the house.  In such instances, an open window 
near the stove on the windward side of the house (side 
against which the wind is blowing) will provide the fresh 
air needed.
Use the air control settings indicated in Figure 24 as 
a starting point to help determine the best settings for 
your installation.
DO NOT OPERATE THE STOVE WITH THE ASH 
DOOR OPEN.  OPERATION WITH THE ASH DOOR 
OPEN CAN CAUSE AN OVERFIRING CONDITION 
TO OCCUR. OVERFIRING THE STOVE IS DANGER-
OUS AND CAN RESULT IN PROPERTY DAMAGE, 
INJURY, OR LOSS OF LIFE.
Primary Air
Catalyst Air
Position of primary air control 
lever for different burn rates.
Low 
1/2 turn open
Medium  1¹⁄₂ turn open
High 
1¹⁄₂ to 2 turns open
Number of turns the air control 
is open for different burn rates.
Fig. 25  Primary and Catalyst air settings.
High
Med.
Low
Closed