Vent requirements, Vent installation, Nsert – Avalon Firestyles DVS Insert-1996 to 2000 User Manual
Page 9: Nstallation

I
NSERT
I
NSTALLATION
(C
ONT
.)
- For Qualified Installers Only!
P
AGE
9
Vent Requirements
!
The gas appliance and vent system must be vented directly to the outside of the building, and never
be attached to a chimney serving a separate solid fuel or gas-burning appliance. Each direct vent gas
appliance must use it's own separate vent system.
!
Make sure the exhaust pipe on the heater connects to the exhaust portion of the cap. The illustrations
below show how the flex liners should be attached.
¥
The exhaust vent must reline the entire length
of the chimney and terminate above the
chimney top
!
If the heater is installed at an altitude over
3,000' (914 M) the flame quality will need to
be carefully evaluated. See Addendum #1,
"Altitude Considerations"(page 35).
!
Be careful not to crimp or rupture the liner
when bending it into chimney offsets
¥
When installed, the vent must meet all of the
vent manufacturer's requirements
¥
Make sure to order the following:
¥ 3" (75 mm) UL 1777 Gas Liner
¥ Dura-Vent Adapter & Flashing (part #
923GK).
¥ Vertical Termination (part # 991)
Max. 1'
(305
mm)
offset
Max. Ht. 35' (10.7 M)
Min. Ht. 8' (2.4 M)
Inlet
Exhaust
Vent Installation
Inlet
Exhaust
Inlet
Exhaust
Termination
(Simpson
Part # 991)
DV Chimney
Liner Kit
(Simpson Part
# 923GK)
3Ó (75 mm)
UL 1777
Gas Liner
High-Temp.
Silicone
Apply high-temperature
silicone to the liners on
both ends and secure
with 2 screws.
Make sure to route the exhaust liner to the exhaust portion of the cap.
High-Temp.
Silicone