The construction, arrangement and manner of
installation of all oil burners and oil-burner equipment hereafter
installed for use in connection with heating systems, and the alteration
replacement or repair hereafter of all oil burners and oil-burner
equipment used or to be used in connection with heating systems, shall
conform to the provisions of this chapter.
The Inspector may approve any oil burner listed
by the Underwriters Laboratory or any other nationally recognized
inspection board or laboratory. Oil burners not listed by the Underwriters
Laboratory or any other nationally recognized board or laboratory
shall not be approved until they have been inspected and tested by
some recognized laboratory capable of making such a test and inspection
and the certificate showing such inspection and test shall be forwarded
to the Inspector. This inspection and test shall cover arrangement
of parts, suitability of material, strength of parts, electrical control,
thermostatic arrangement, reliability of automatic features, positiveness
of ignition and safeguards against flooding.
Any person licensed to install, alter, repair
or replace oil burners in the Village of New Haven shall install a
used burner for use in connection with a heating system only after
he shall have furnished the Inspector with a statement that said oil
burner has been put in first class operating condition.
The grade of fuel oil used with any burner shall
be one which tests and experience show to be suitable for use with
that burner. The oil shall have a flash point not less than 110°
F. when tested by the Pensky-Martins Closed Cup Testing Method and
shall be free from acid, grit, and fibrous or other foreign matter
likely to clog or injure the burners or valves.
The burner shall be designed to prevent excessive
carbonization and shall be securely attached and supported.
Gravity feed shall be used only with burners
equipped with approved automatic devices to prevent abnormal discharge
of oil in the burner.
Complete instructions in regard to care and
operation of the oil-burning equipment shall be posted near the apparatus
installed. The instruction sheet so posted shall include the specifications
for the gravity and limiting flash point of the oil suitable for use
in the burner. All instruction cards must be posted at the time of
installation.
In single residences, every oil-burner installation
shall have near the entrance to the furnace room, and readily accessible
for convenient use in an emergency, a hand fire extinguisher of at
least a quart capacity approved by the National Board of Fire Underwriters
for extinguishing combustible oil fires; provided, however, that in
installations of oil-burning equipment in multiple dwellings and commercial
establishments of any kind or description where the public congregates
or persons are permitted to be present on invitation or otherwise,
such installation shall have accessible in the furnace room for immediate
and convenient use in emergency a fire extinguisher of at least 2 1/2
gallons' capacity, approved by the National Board of Fire Underwriters,
and which shall be of a foam type or its equivalent; provided further
that in case of great hazard or danger to the public, the Chief of
the Fire Department of the Village of New Haven may, in writing, require
further or additional fire-extinguishing apparatus in order to safeguard
public property and life.
The use of acetylene or any other gas possessing
a wider range of explosiveness in admixture with air than coal gas
or water gas is prohibited for use in the gas pilot of any fuel oil
burner.
A name plate designating the trade name of the
burner, the model, or size number and the name and address of the
burner manufacturer, shall be securely attached to each fuel oil burner
and oil-burning space heater.
No damper shall be permitted in the smoke pipe
or chimney from the device heated that may restrict the passage of
fumes or gases by more than 40%.
Each oil-fired heating unit covered by this
chapter shall be connected to a chimney flue.
B.
Vent pipes.
(1)
The vent pipe shall maintain a pitch or rise of 1/4
inch per foot of the horizontal run from the equipment to the flue
or chimney.
(2)
The vent pipe shall be so installed as to avoid sharp
turns or other constructive features which would create excess resistance
to flow of the gaseous products of combustion.
(3)
Interconnections.
(a)
Vent pipes from one or more oil-fired space
heating appliances may be interconnected, provided that the cross-sectional
area of the manifold shall be equal to the sum of the cross-sectional
areas of the vent collar connections of the appliances.
(b)
No vent from an oil-fired space heating appliance
shall be interconnected with a vent pipe from an appliance burning
other fuels or designed for other uses except with the specific approval
of the Inspector.
(4)
A vent pipe from an oil-fired heating appliance and
vent pipes from other appliances, burning the same or other fuels,
may be connected into the same chimney through separate openings located
at different levels, provided that the operation of any of the equipment
is not adversely affected.
(5)
The material used for vent pipes shall be such as
to resist the corrosive action of flue gases and condensate.
In the case of conversion burners, the fuel
door shall be arranged so as to relieve pressure due to puffs or back-fire
caused by delayed ignition, and shall be provided with an approved
self-enclosing device.
Electric wiring in connection with oil-burning equipment shall be installed in accordance with the regulations of the National Electric Code and local electrical rules as enforced by Chapter 230, Electrical Standards.
A.
The minimum clearance of oil-fired heating units from
combustible partitions and materials shall be as set forth in Table
No. 1,[1] except in the case of equipment especially designed for
burning fuel oil and tested and listed for lesser clearances by a
national recognized testing laboratory.
[1]
Editor's Note: Table No. 1 is included at the end of this chapter.
B.
The clearance to combustible construction may be reduced
as specified in Table No. 2[2] where the combustible construction is protected in accordance
with this table.
[2]
Editor's Note: Table No. 2 is included at the end of this chapter.
A.
Where metal smoke pipes of 12 inches or less in diameter
pass through a wood or plastered stud partition, they shall be surrounded
either by a body of brick, hollow tile, or other incombustible fireproof
material of a thickness of at least four inches around such smoke
pipes; or they shall be surrounded by a sheet metal thimble of two
concentric rings at least two inches apart, with the entire thimble
so constructed that there will be a free circulation of air between
the two rings forming the same. Smoke pipes of a diameter of six inches
or less may have thimbles with one-inch air space.
B.
Where a new smoke pipe is installed, it shall be lock-seamed
or riveted, with all joints lapped not less than 1 1/2 inches
and rigidly secured, and shall have a proper thimble for making tight
connections to the chimney flue.
Oil-fired floor furnaces shall be specifically
approved by the Department for services in direct contact with combustible
floors in which they may be installed.
A.
Combustion air. Fixed ventilation by means of a duct
or grille arranged to supply air from a permanently ventilated attic
or underfloor space shall be provided to any confined space which
encloses the floor furnace. The duct or grille shall be screened and
have a free area at least twice the free area of the vent collar of
the floor furnace or one square inch per 1,000 BTUs per hour of oil
input, whichever is the greater, and shall be installed in such a
manner as to ensure proper combustion.
B.
Placement. The following are requirements that will
serve in properly placing the furnace or furnaces to serve one story:
(1)
No floor furnace shall be installed in the floor of
any aisle or passageway of any auditorium, public hall, or place of
assembly, or in an exitway of any such room or space.
(2)
Walls and corners. With the exception of wall-register
models, a floor furnace shall not be placed closer than six inches
to the nearest wall, and wall-register models shall not be placed
closer than six inches to a corner.
(3)
Draperies. The furnace shall be so placed that a door,
drapery, or similar object cannot be nearer than 12 inches to any
portion of the register of the furnace.
(4)
Central location. Generally speaking, the more central
the location the better, favoring slightly the sides exposed to the
prevailing winter winds.
C.
Bracing. The floor around the furnace shall be braced
and headed with a framework of material not lighter than the joists.
D.
Support. Means shall be provided to support the furnace
when the floor grille is removed.
E.
Clearance. The lowest portion of the floor furnace
shall have at least a six-inch clearance from the general ground level,
except that where the lower six-inch portion of the floor furnace
is sealed by the manufacturer to prevent entrance of water, the clearance
may be reduced to not less than two inches. When these clearances
are not present, the ground below and to the sides shall be excavated
to form a "basin-like" pit under the furnace so that the required
clearance is provided beneath the lowest portion of the furnace. A
twelve-inch clearance shall be provided on all sides except the control
side, which shall have an eighteen-inch clearance.
F.
Access. Provisions shall be made for an access door
to the floor furnace by means of an opening in the foundation wall
of at least 18 inches by 24 inches and a trap door of at least 24
inches by 24 inches, located at some convenient point, and a clear
and unobstructed passageway to the floor furnace at least 18 inches
high by 24 inches wide.
G.
Seepage pan. Whenever the excavation exceeds 12 inches
or water seepage is likely, a pit made of concrete, waterproof, not
less than 3 3/4 inches thick and extending four inches above
grade level, shall be used. The pit shall be not less than six feet
by six feet inside dimension, with at least 2 1/2 feet of clearance
on the control side and clearance on all other sides not less than
six inches.
H.
Wind protection. Floor furnaces shall be protected,
where necessary, against severe wind conditions.
I.
Upper floor installations. Listed oil floor furnaces may be installed in an upper floor, provided the furnace assembly projects below into a utility room, closet, garage, or similar nonhabitable space. In such installations, the floor furnace shall be enclosed completely (entirely separated from the nonhabitable space) with means for air intake to meet the provisions of Subsection A, with access facilities for servicing on the control side, with minimum furnace clearance of six inches to all sides and bottom, and with the enclosure constructed of portland cement plaster on metal lath or material of equal fire resistance.
J.
Registers shall not be covered with combustible materials,
and the floor immediately surrounding the furnace shall be reasonably
level.
K.
All floor furnaces, including those having single
or dual wall register outlets, shall be installed as approved without
alterations, extensions or changes of any kind (in the furnace).
