Draft Requirements; Chemney Installation - SCAN DSA 4 Instructions For Use Manual

4.9 Draft Requirements:

The SCAN DSA fireplace is only one component of the total system. The venting system is
equally important for achieving the required flow of combustion air to the fire chamber and for
safely removing unwanted combustion by products from the appliance. If the venting system's
design does not promote these ends, the system may not function properly. Poorly functioning
venting systems may create performance problems as well as be a safety hazard (i.e. an
oversized chimney may result in less than optimum performance. Installations into a large,
masonry chimney may require a liner to improve performance). A draft test should read greater
than .04" W.C. (Inches Water Column) and less than .08" W.C Minimum chimney height are 15
feet. The table below shows dimension of connection piece and data for draft requirements for
the SCAN DSA fireplace under normal operation conditions:
Fireplace Connection piece
SCAN DSA 4
The chimney draught depends on the weather conditions. In stormy weather, you may reduce
the chimney draught by closing the damper in the smoke pipe (if a damper has been installed).
If the chimney draught is strong, the combustion air supply must be reduced additionally.

4.10 Chemney Installation:

The SCAN DSA fireplace should not be connected to a chimney of which the inside diameter is
smaller than that of the flue collar.
4.10.1 Top Discharge with Direct Connection to Steel Chimney:
Chimney must be UL 103 HT or UL 1777 liner
If the steel chimney is installed directly on top of the fireplace, we recommend the use of a
connection piece/adaptor fitting into the inside of the fireplace's smoke collar to lead
condensation and rain into the fireplace, instead of on the top plate.
Mounting the flue collar:
1. Turn the flue collar around and fix the brackets under the top plate
2. Tighten the two screws with the delivered hexagon spanner (tighten well)
With Closed Doors
Douglas Fir Lumber 18% Moisture Content
Chimney draught
Ø mm/inch
150 mm / 6 inch 18 Pa. / 0.06 W.C.
Efficiency
Pa/W.C. in %
63%
BTU
10,500 – 27,900
Page 12