8
3.4 Boiler Location Considerations
• Ambient room temperature always above 32°F (0°C) to
prevent the potential of freezing.
• Drainage of water (or water/ antifreeze solution) during
boiler service or from safety relief valve discharge.
• Access to system water piping, gas supply, and
electrical service.
•
Boiler shall be installed on flat level surface which is
capable of supporting the weight of the boiler, water,
and equipment.
•
Raise boiler above the floor on blocks if floor may get
wet.
• Water, gas, and electrical may connect to either side of
boiler as desired.
• Horizontal run to chimney shall be as short as possible.
3 - LOCATING THE BOILER
Items to Avoid
Products Which May Contain These
Items
Areas Where These Items May Be
Found
Chlorine, Fluorine, and Compounds
Spray cans containing chlorofluorocarbons
Chlorinated waxes/cleaners
Chlorine-based swimming pool chemicals
Calcium chloride used for thawing
Sodium chloride used for water softening
Swimming pool or spa chemicals
De-icing salts or chemicals
Carbon Tetrachloride
Swimming pools and pool storage areas
Laundry room (Note 2)
Confined storage areas
Airborne Particulates
Drywall dust
Road or gravel dust
Dryer lint
Cat litter
Construction or remodelling areas (Note 1)
Laundry room (Note 2)
Acids, Solvents, etc.
Paint, Varnish, Turpentine, etc.
Cleaning Solvents
Hydrochloric acid/muriatic acid
Cements, adhesives and glues
Photo processing plants
Garages with workshops
Furniture refinishing areas and
establishments
Laundry Chemicals
Laundry detergents, bleaches, fabric
softeners, etc.
Antistatic fabric softeners (dryer sheets)
Dry cleaning/laundry areas and
establishments
Other
Permanent wave solutions
Refrigerants (Freon, etc) (only where
the refrigerant may be leaking from the
appliance)
Beauty shops
Refrigeration repair shops
Notes:
1. It is recommended the boiler be isolated and not operated during construction/
renovation. Excessive particles ingested by the boiler may accumulate in the flueway
passages possibly resulting in unsafe operation. In this case, unit servicing shall include
cleaning of flueway passages and burner ports.
2. If locating boiler in laundry room is unavoidable, it is manufacturer recommended
the room be generously ventilated (well in excess of combustible air requirements), and
homeowner seal laundry supply containers, and minimize room vapors.
3
. Piping allowing fresh air in should also be considered. See Section 5-1.
Table 3-1: CONTAMINANTS
• System piping exposed to freezing conditions: Use
inhibited propylene glycol solutions certified by fluid
manufacturer for use with closed water heating system.
Do not use automotive or ethylene glycol.
Maximum recommended mixture 50% glycol.
PN 240012787 Rev. C [11/15/2020]
