CarAlarms.com P90-NG1 - Manual (Page 21)

Excalibur ® P90 Zero Clearance Direct Vent Gas Fireplace 21
The P90 is approved for a maximum 40 ft. straight vertical, with rigid pipe
4" x 6-5/8" vent systems for Propane and Natural Gas, as per diagram.
The shaded area in the diagram show all allowable combinations of straight
vertical and offset to vertical terminations with rigid pipe vent systems for
Propane and Natural Gas. Maximum two 45
o elbows allowed.
• Vent must be supported at offsets
• Firestops are required at each fl oor level and whenever passing
through a wall.
• Maintain clearances to combustibles as listed in the "Clearances"
section.
INSTALLATION
Please note that all vertical
measurements are taken from
the base of the unit excluding
risers or bottom stand-offs.