Installation, Flueing arrangements - vertical terminations, Simpson dura-vent direct vent gs system – Regency SEE THRU P121-NG User Manual
Page 17: Lpg & ng)
Regency P121/P121LC/P121RC/P131 Zero Clearance Room Sealed Gas Fireplace
17
INSTALLATION
FLUEING ARRANGEMENTS - VERTICAL TERMINATIONS
SIMPSON DURA-VENT DIRECT VENT GS SYSTEM
(LPG & NG)
Flue must be supported at offsets
Maintain clearances to combustibles as listed on page 9.
Firestops are required at each floor level and whenever passing through a wall.
Must use optional flue adapter when using Simpson Dura-Vent pipe (Part# 510-994).
The P121/P121LC/P121RC/P131 is approved for a maximum 35 ft. (10.7m) straight vertical, with Simpson Dura-Vent Direct Vent GS flue systems
for LPG and NG, as per diagram 7 below.
Diagram 7
Diagram 8
Straight Up Vertical Flueing
Vertical Flueing with One (1) 90
o
Elbow
Option
V
H
A)
1' (305mm) Minimum
2' (610mm) Maximum
B)
2' (610mm) Minimum
4' (1.22m) Maximum
C)
3' (914mm) Minimum
6' (1.86m) Maximum
D)
4' (1.22m) Minimum
8' (2.4m) Maximum
With the above options, maximum total pipe length if 37 feet with
minimum of 4 feet total vertical and maximum 8 feet total horizontal.
Please note minimum 1 foot between 90
o
elbows is required.