34
VENTING
Element4 Gas Fireplaces
European
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The fireplaces in this manual are direct vent fireplaces that uses a co-axial or “pipe within a pipe” venting system. The outer “pipe”
or vent conducts fresh, outside air into the fireplace and the inner vent carries the exhaust outside. This technology, which can run
either horizontally through a side wall or vertically through the roof, produces an efficient system because conditioned building
air is not used for combustion.
NOTE: The Optica and Bioptica fireplaces use 4”/65⁄8” venting.
Bidore, Lucius, Modore and Trisore models use 5”/8” venting.
All of the following points apply to every installation:
•
Only the direct vent components from M&G DuraVent (listed in Table 5)
are approved for use with these fireplaces. The
installation instructions are in Appendix One. Please read, understand and follow these instructions.
•
Every Element4 fireplace is shipped with a North American venting adapter. It MUST be the first piece of venting installed.
•
All measurements are taken from the center of the vent connector on the top of the fireplace (see
Figure 15
) and all
configurations must fall within the acceptable range of the model-specific diagrams.
•
The maximum allowable rise is 36’/11.0
m
and the maximum allowable run is 16’4”/5.0
m
but
not
in combination; see model-
specific diagrams.
•
Optica/Bioptica
- The minimum vent configuration is a 3’3”/1.0
m
vertical rise to a 90° elbow plus a 19”/500
mm
horizontal run
to a wall termination.
All other models
- The minimum vent configuration is a 19”/500
mm
vertical rise to a 90° elbow plus a 19”/500
mm
horizontal
run to a wall termination.
•
When using wall terminations no more than
two
horizontal 45° or 90° elbows are allowed. See model-specific diagrams.
•
When using vertical terminations no more than
four
90° elbows OR
eight
45° elbows OR a combination totaling no more
than 360° ‘elbow degrees’. For example, a combination of two 90° elbows and two 45° elbows is allowed (90° + 90° + 45°+ 45°
equals 270°) but a combination of three 90° elbows and three 45° elbows is not allowed (the total equals 405°.) These elbows
can be installed either horizontally or vertically.
•
A minimum clearance of 3”/75
mm
must be maintained between combustible materials and the top of any horizontal vent
pipe surface; a minimum clearance of 1”/25
mm
must be maintained between combustible materials and any other vent pipe
surface.
•
The horizontal parts of the venting must be pitched up, away from the fireplace. For every 12”/305
mm
of horizontal run, the
venting must rise ¼”⁄6.5
mm
toward the termination. The venting must never run downward.
•
Whenever venting passes through a wall, a heat shield, or ‘wall thimble’ from the manufacturer listed in Table 5
must be
installed.
CONFIGURING THE VENTING