7
6.
Installation Clearances
Before installing, check for the following:
Install in accordance with relevant building and mechanical codes, as well as any local, state or
national regulations, or in the absence of local and state codes, to the National Fuel Gas Code
ANSI Z223.1/NFPA 54 – latest edition. In Canada, see the Natural Gas and Propane Installation
Code CSA B149.1 - latest edition for detailed requirements.
WARNING
Item
Distance from combustibles
• Maintain the following clearances
from both combustible and
non-combustible materials.
Check
Illustration
• If possible, leave 8" (200mm) or more on
either side of the unit to facilitate inspection.
• If possible, leave 24" (600mm) or more
in front of the unit to facilitate maintenance
and service if necessary.
• If possible, leave 3" (75mm) or more
above and below the vent pipe to facilitate
inspection and repair if necessary.
Securing of space for
repair/inspection
24" (600mm)
or more
8" (200mm)
or more
Distance from
the side
12" (300mm)
or more
2" (50mm)
or more
3" (75mm) or more
3" (75mm) or more
4" (100mm)
or more
8" (200mm)
or more
