5Vent Information
A.Venting Components
In order to comply with applicable codes and product warranties, use only following venting components:
•Hearth & Home Technologies (HHT)
•Simpson
•Selkirk
•AmeriVent
•Security Secure Vent
DO NOT USE FIELD-FABRICATED VENTING
COMPONENTS. Refer to the venting manufacturer’s instructions.
This product is approved to be vented either horizontally, through the side wall or vertically through the roof. You may vent through a Class A or masonry chimney if an approved adapter is used.
This appliance is a direct vent heater. All combustion air must come directly from the outside of the building. The vent pipe for this unit consists of an inner and an outer pipe. The inner pipe carries the appliance exhaust out of the system, and the outer pipe brings fresh combustion air into the appliance.
•A round support box/wall thimble or heat shield is required when the venting passes through a combus- tible wall.
•A support box or ceiling firestop is required when the venting passes through a ceiling.
•Roof flashing and a storm collar are required when vent- ing passes through the roof.
•Follow instructions provided with the venting for instal- lation of these items.
B. Use of Elbows
CAUTION
ALL vent configuration specifications MUST be followed.
•This product is tested and listed to these specifications.
•Appliance performance will suffer if specifications are not followed.
Diagonal runs have both vertical and horizontal vent aspects when calculating the effects. Use the rise for the vertical aspect and the run for the horizontal aspect. (See Figure
5.1.)
Two 45° elbows may be used in place of one 90° elbow. On 45° runs, one foot of diagonal is equal to
5.1.)
Vertical
|
| . |
|
| in |
| . | 1/2 |
12 | in | |
| 8 | |
|
| - |
Horizontal 
Figure 5.1
WARNING
Fire Hazard.
Explosion Risk.
Asphyxiation Risk.
Do NOT connect this gas appliance to a chimney flue serving a separate
•Vent this appliance directly outside.
•Use separate vent system for this appliance.
May impair safe operation of this appliance or other appliances connected to the flue.
C. Measuring Standards
Vertical and horizontal measurements were made using the following standards.
•Pipe measurements are from center line to center line.
•Horizontal terminations are measured to the outside of the mounting surface (flange of termination cap). See Figure 4.1 on page 8.
•Vertical terminations are measured to the top of the last pipe before termination cap.
•Horizontal pipe installed level with 1/4 in. rise.
Page 10 | September 1, 2008 |