OWNER’S MANUAL
VENTING INSTALLATION
Continued
TYPE B-VENT INSTALLATION (Listed B-0 or Greater)
Before beginning installation be sure that the overall height and gas vent size conform to building code requirements. Gas vents ex- tending through pitched roofs can extend a minimum height of at least 600 mm (2') higher than any obstruction within 3m (10'). Gas vents extending through flat roofs are required to extend at least 600 mm (2') above the roof and at least 600 mm (2') higher than any portion of the building or adjoining build- ing within 3m (10') of the gas vent.
• Venting instruction contained in this |
manual may or may not appy to your |
area. Consult your local authority for re- |
quirement in your area. |
• Where the gas vent extends through ac- |
cessible spaces, it should be enclosed to |
avoid personal contact and damage. En- |
closure walls should have a fire rating |
equal to or greater than the floors through |
Round Top
Storm Collar
Flashing
Firestop
Spacer
Enclosure 
Wall
Gas Vent Length 
Support
Plate
Adjustable
Length
Roof Suport
25mm (1") Clearance to Combustible Material
Keep Electrical Wires and Building Insulation Away from Gas Vent and Out of the Required Air Space
25mm (1") Clearance to Combustibles
Figure 19 - Vertical Venting Through Ceiling Using Two 90º Elbows
which the gas vent passes except in single |
or |
• Situate the gas vent in the structure so |
that it can be installed without cutting |
joists, sills, plates, or major load bearing |
partitions or members. It is also impor- |
tant to locate the base of the gas vent as |
near as possible to the heating appliance. |
• This heater must be properly connected to |
a venting system. This heater is equipped |
with a vent safety shutoff system. |
• Use only vents labeled "FOR EXTE- |
RIOR USE" above the roofline. |
• Consult the authority having jurisdiction to |
select the correct gas vent diameter. Avoid |
using a larger than necessary diameter. |
Figure 18 - Typical
INSTALLATION OF LISTED B-1 VENT
WARNING: Installation should only be made by qualified per- sons who are familiar with the safety procedures required for the installation of the product, who are equipped with the proper tools and testing instruments, and who have achieved proper certification of licensing. Instal- lations made by unqualified per- sons can result in the risk of in- jury or electrical shock which can be serious or even fatal.
Figure 19, 20 and 21 show other options for the gas vent. When venting through a side wall your vent pipe must have the proper temperature rating (see Figure 21). Manufacturer's clearances must also be maintained. Consult the authority having jurisdiction in your area regarding venting through side wall.
Figure 20 - Vertical Venting Configuration Through Chimbey
Figure 21 - Venting Through a Side Wall
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