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904.2.9 Central Heating Furnaces
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Central heating
furnaces other than those listed in Section 904.2.7 or Section
904.2.8 shall have clearances from the supply ducts
of not less than 18 inches (457 mm) from the furnace
plenum for the first 3 feet (914 mm), then 6 inches (152
mm) for the next 3 feet (914 mm) and 1 inch (25.4 mm)
beyond 6 feet (1829 mm). [NFPA 54:10.3.2.9]
Related Code Sections
904.2.9 Installation of Specific Appliances, Central Heating Furnaces
Central heating
furnaces other than those listed in Section 904.2.7 or Section
904.2.8 shall have clearances from the supply ducts
of not less than ...
California Mechanical Code 2019 > 9 Installation of Specific Appliances > 904.0 Central Heating Boilers and Furnaces > 904.2 Clearance > 904.2.9 Central Heating Furnaces
904.1 Installation of Specific Appliances, Location
Central heating furnace and low-pressure boiler
installations in bedrooms or bathrooms shall comply with one
of the following:
Central heating ...
California Mechanical Code 2016 > 9 Installation of Specific Appliances > 904.0 Central Heating Boilers and Furnaces > 904.1 Location
904.0 Installation of Specific Appliances, Central Heating Boilers and Furnaces
Central heating furnace and low-pressure
boiler installations in bedrooms or bathrooms shall comply
with one of the following:
Central heating ...
California Mechanical Code 2019 > 9 Installation of Specific Appliances > 904.0 Central Heating Boilers and Furnaces