XG0799 - 081319
8
General
ALLOWABLE EXHAUST VENT RUNS
MIN VENT RUN
MAX VENT RUN
ELBOWS
3'
80’ (Including 7
elbows)
7 @ 90°
ALLOWABLE INTAKE VENT RUNS (B OR C VENT)
MIN VENT RUN
MAX VENT RUN
ELBOWS
3'
40’ (Including 3
elbows)
3 @ 90°
Section 2: Power vents
Roof or Wall Mount Power Vent
Installation
Inline Power Vent Installation
Installing the Power Vent Termination
•
Prodigy series fireplaces are certified for use with any UL listed
type B venting components (B-Vent required for flue gas only).
Use of other non certified parts will void the Montigo warranty,
and may impede the operation of the fireplace.
• The vent run should not exceed distances described in allowable
exhaust table. If your vent run does not meet these requirements
please contact your local Montigo representative.
•
Install components and fittings using the clearances specified
by the B-Vent manufacturer.
• All joints must be secured as per the instructions provided by
the B-Vent manufacturer.
• The exhaust portion of a vent termination must not be recessed
in a wall cavity.
•
Horizontal runs must be supported by a minimum of three
supports per 10 feet of venting.
• It is important that the location of the power vent motor is not
exposed to a downfall of water in excess of the standard rain fall.
• Before installing the termination or venting, check to ensure
the planned termination location is acceptable.
Installation from fireplace to PV (negative pressure system)
•
Prodigy series fireplaces are certified for use with any approved
UL certified type B venting components. Use of other non-
certified parts will void the Montigo warranty, and may impede
the operation of the fireplace.
• The vent run should not exceed distances described in Table. If
your vent run does not meet these requirements please contact
your local Montigo representative.
•
Install components and fittings using the clearances specified
by the B-Vent manufacturer.
• All joints must be secured as per the instructions provided by
the B-Vent manufacturer.
•
Horizontal runs must be supported by a minimum of three
supports per 10 feet of venting.
• Select a location for the power vent that will permit an access
panel for future maintenance work.
• Ensure access panel is large enough for the motor to be accessed
in case it ever must be removed.
• The power vent can be mounted to any solid non-combustible
surface.
• Anchoring bolts for the power vent should be rated for a
minimum of 300 lbs each and be 1/4” diameter minimum.
• If suspending the power vent, some bracing mechanism should
be designed to prevent any lateral movement of the equipment.
Installation from the PV to building exterior (positive pressure
system):
• Beyond the inline power vent, venting must be positive pressure
rated with all joints sealed.
• For runs up to 30’, use Montigo VPIF piping. For runs over 30’
use a UL listed sealed venting system.
• The exhaust portion of a vent termination must not be recessed
in a wall cavity.
•
Horizontal runs must be supported by a minimum of three
supports per 10 feet of venting.
•
The flue gas outlet should be a louver box or termination that
has equivalent free air in square inches as that of the flue collar
•
Clearance to combustibles around Montigo VPIF vent is 1".
• Frame the chase for the Power Vent Termination to the
dimensions shown in the power vent section.
• Secure the termination and its frame using appropriately rated
fasteners.
• If more than 7 elbows are required, the maximum allowable
vent run must be decreased by 20’ for each additional elbow.
For example, a vent run with 9x 90° elbows has a maximum
vent run distance of 40 feet.
• Should your vent run fall outside of the parameters shown,
please contact a Montigo representative to discuss other options.
