Optal 4 Glass 2 burners, Installation & Operation Manual

Page: 60 / 166

60
INSTALL VENT SYSTEM
Refer to the guidelines below and the instructions in appendix A.
Fireplace Restrictors & Vent Arrangement
The following drawing and tables show the options allowed for both vertical and horizontal
positioning of the vents and the required restrictor.
With this information it is possible to find the allowable horizontal or vertical path of the vent.
•
Where the symbol “x” appears the path is not allowed.
•
When the symbol is “0” there is no restriction
•
When there is a number, the number represents the width required for the size of
restrictor that has to be assembled. All these dimensions are shown in inches.
When using the restrictor tables:
•
Each table has two sections:
o
Top: Metric scale, V/H shown in meters and restrictor in mm.
o
Bottom: V/H shown in feet and restrictor size in inches.
•
Any venting pathway that does not appear in this table will require approval from the
manufacturer.
•
The tables apply to both Natural Gas and Propane.
•
The tables represent the manufacturer’s guideline. Environment gas type (NG vs. LPG
and the source of the gas) and other factors may affect the best restrictor choice.
o
If flame appears to be not typical, please contact ORTAL USA for alternate
restrictor size recommendations.