Follow all local codes. In the absence of local codes, follow the National Fuel Gas Code
ANSI Z221.23.
Install the water heater in an open, uncovered area, and maintain the following minimum
clearances. The MOBIUS water heater must be installed hanging from a wall.
Do not install this water heater under an overhang without a 3 feet clearance between the
MOBIUS water heater and eaves or any obstacles. The area under an overhang must be
open to three sides. In case install two or more unit manifold, side clearance will be 0.5".
WARNING: Do not have the flue terminal pointing toward any opening into a building. Do not
locate your heater in a pit or location where gas and water can accumulate.
OUTDOOR INSTALLATION
Piping side (Bottom)
Front (Maintenance space)
Back of heater
Top of heater
12"
Open
1"
36"