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BIASI B/40
Locate the boiler to provide sufficient clearance for inspection, servicing and maintenance.
Minimum clearance to construction or combustible materials shouldn't be less than six (6) inches from
the top, sides and rear of unit, and eighteen (18) inches from the flue pipe in any direction. Front
clearance should be at least twenty four (24) inches. When choosing a location for the boiler, take
into consideration the 12” supply manifold on the back of the boiler. Adequate space must be given to
pipe the manifold in and for the smoke pipe to clear the manifold. Greater distances for ease of access
should supersede fire protection clearances. The boiler must be located on a non-combustible floor. A
smooth, level concrete floor is recommended. Locate the boiler as close as possible to the chimney. If
boiler is installed on combustible flooring, consult local authorities for proper method of covering
floor. The boiler must not be installed on carpeting.
Caution: Do not store or use flammable materials, chemicals or flammable liquids,
especially gasoline, in the vicinity of this heating appliance.
The boiler location must provide air for proper combustion and ventilation of the surrounding
area. To burn efficiently, oil requires 30 CFM/GAL. In general, boiler rooms should incorporate two
(2) permanent air supply openings, one commencing within 12 inches of the ceiling, and one
commencing within 12 inches of the floor. These openings
should freely communicate with the
outdoors.
OUTSIDE AIR: When combustion air is supplied directly through an outside door or wall,
each opening shall have a free area of one square inch per 4,000 BTUH input for the total input of all
the appliances in the enclosure.
INSIDE AIR: When combustion air is supplied from inside the building, each opening shall
have a free area of one square inch per 1,000 BTUH input for the total of all appliances in the
enclosure. In no case shall the openings be less than 105 square inches each.
In both cases, check manufacturers ratings for louver net free area, and correct for screen
resistance to net free area.
If the boiler is to be installed where the operation of exhaust fans, attic fans, kitchen
ventilation systems, clothes dryers or fireplaces may create severe negative vent pressures causing
unsatisfactory combustion and venting, special provisions should be made for additional make-up air
to supply the other air requirements. If building is of tight construction, combustion air requirements
may not be met and combustion air ducts from outside may be necessary. Please refer to NFPA No.
31.
Do not install the boiler until the proper combustion air has been arranged
4. Combustion Air Supply:
5. Boiler Location:
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