3.5
HOT AIR DUCTING INSTALLATION
Different hot air ducting systems can be installed with the OSBURN
STRATFORD
:
−
Gravity kit
−
Forced air kit
3.5.1 Gravity Kit
The kit includes:
−
2 x hot air outlets (grilles and frames);
−
2 x 90
o
elbows with brackets;
−
1 deflector.
The gravity kit allows you to block the upper fireplace louver. To do so, follow the steps
below:
a) Remove the upper louver from the fireplace;
b) Install the deflector as shown on figure 12;
c) Put the upper louver back into place.
Figure 12
Figure 13
DEFLECTOR
UPPER
LOUVER
GRILLE
FRAME
The safety rules for hot air ducting gravity kit installations are the following:
Minimum height*
68" (1.7 m)
Maximum length
10' (3m) (see figure 14)
*The minimum height of the hot air ducting must be measured from the floor
to the top of the
hot air grilles.
The hot air grilles can be installed in the same room as the fireplace, or one or both of the
grilles can be installed in adjacent or upper rooms. Installing the ducts at different elevations
will tend to exhaust more heat out of the higher grilles (figure 15).
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