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Page 16
Heatilator • Constitution EPA Fireplace • 480-1091H
4/12
Q. Burning Guidelines
For maximum operating efciency with the lowest
emissions, follow these operating procedures:
1. Regardless of desired heat output, when loading the
replace, burn your replace with the Combustion Air
Control wide open (fully to the right) for a minimum
of 5 to 15 minutes.
2. Regulate burn rate (heat output) by using the Com-
bustion Air Control. See Figure 2.5 on page 15.
3. Heat output settings: Follow the burn rate instructions
listed below.
*Combustion Air Control
Slide LEFT to Stop
Stop to 1/8 in. -1/2 in. open
Stop to 1/2 in. - 1-1/2 in. open
All the way to RIGHT
BTU / Hr
Below 10,000
10,000 - 15,000
15,000 - 30,000
Maximum Heat
Burn Rate
Low
Medium
Medium High
High
HIGH - Maximum Heat: Fully open (Combustin Air Control
all the way to the right). It is important to do this when reload-
ing the replace. Failure to do this could result in excessive
emissions (smoke).
MEDIUM HIGH BURN RATE - 15,000 to 30,000 BTU: After
a wood load has been burning on high for 5 to 15 minutes,
close the Combustion Air Control to 1/2 in. - 1-1/2 in. (13
mm-38 mm) distance open. (Move the handle to left to stop
and then to right for the proper setting).
MEDIUM - 10,000 - 15,000 BTU: After a wood load has been
burning on high for 5 to 15 minutes (longer for very large
pieces or wet wood), Combustion Air Control left to 1/8 in.
-1/2 in. (3 mm-13 mm) distance open. (Move the handle to
left to stop and then to right for the proper setting).
LOW - Below 10,000 BTU: After a wood load has been burn-
ing on high for 5 to 15 minutes (longer for very large pieces
or wet wood), gradually slide the Combustion Air Control
left to close down the air, making sure to maintain ames in
the replace. It is very important to maintain ames in your
replace during the rst few hours of a low burn to avoid
excessive air pollution.
R. Burn Rates
T
his is the measure of how cleanly your replace is burning.
Opacity is measured in percent; 100% opacity is when an ob-
ject is totally obscured by the smoke column from a chimney,
and 0% opacity means that no smoke column can be seen.
As you become familiar with your replace, you should peri-
odically check the opacity. This will allow you to know how
to burn your replace as nearly smoke-free as possible (goal
of 0% opacity).
S. Opacity
P. Manual Timer Override
Figure 2.6 Manual Override
If timer is unintentionally engaged, push the Timer Over-
ride Lever to the left. This will disengage the timer and set
the Fireplace back to the low setting. Figure 2.6
Left-Close Right-Open
Manual Override