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REQUIREMENTS for COMMONWEALTH of MASSACHUSETTS
Modifications to NFPA-54, Chapter 10
Revise NFPA-54 section 10.8.3 to add the following
requirements:
For all side wall, horizontally vented, gas-fueled equipment
installed in every dwelling, building or structure used in whole
or in part for residential purposes, including those owned
or operated by the Commonwealth and where the side wall
exhaust vent termination is less than seven (7) feet above
the finished grade in the area of the venting, including but
not limited to decks and porches, the following requirements
shall be satisfied:
1. I N S TA L L AT I O N O F C A R B O N M O N O X I D E
DETECTORS. At the time of installation of the side wall,
horizontally vented, gas-fueled equipment, the installing
plumber or gas fitter shall observe that a hard-wired
carbon monoxide detector with an alarm and battery
backup is installed on the floor level where the gas
equipment is to be installed. In addition, the installing
plumber or gas fitter shall observe that a battery-
operated or hard-wired carbon monoxide detector with
an alarm is installed on each additional level of the
dwelling, building or structure served by the side wall,
horizontally vented, gas-fueled equipment. It shall
be the responsibility of the property owner to secure
the services of qualified licensed professionals for the
installation of hard-wired carbon monoxide detectors.
a. In the event that the side wall, horizontally
vented,
equipment is installed in a crawl space
or an attic, the hard-wired carbon monoxide
detector with alarm and battery backup may be
installed on the next adjacent floor level.
b. In the event that the requirements of this
subdivision
at the time of completion of
installation, the owner shall have a period of thirty
(30) days to comply with the above requirements;
provided, however, that during said thirty (30) day
period, a battery-operated carbon monoxide
detector with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS.
Each carbon monoxide detector as required in
accordance with the above provisions shall comply with
NFPA 720 and be ANSI/UL 2034 listed and IAS certified.
3. SIGNAGE. A metal or plastic identification plate shall
be permanently mounted to the exterior of the building at
a minimum height of eight (8) feet above grade directly
in line with the exhaust vent terminal for the horizontally
vented, gas-fueled heating appliance or equipment. The
sign shall read, in print size no less than one-half (1/2)
inch in size, "GAS VENT DIRECTLY BELOW. KEEP
CLEAR OF ALL OBSTRUCTIONS."
Page 58 of 59
4. INSPECTION. The state or local gas inspector of the
EXEMPTIONS: The following equipment is exempt from
24 CMR 5.08(2)(a) 1 through 4:
1. The equipment listed in Chapter 10 entitled "Equipment
2. Product Approved side wall, horizontally vented,
MANUFACTURER REQUIREMENTS -
GAS EQUIPMENT VENTING SYSTEM PROVIDED.
When the manufacturer of Product Approved side wall,
horizontally vented, gas-fueled equipment provides a
venting system design or venting system components with
the equipment, the instructions provided by the manufacturer
for installation of the equipment and the venting system
shall include:
1. Detailed instructions for the installation of the venting
g a s - f u e l e d
2. A complete parts list for the venting system design or
MANUFACTURER REQUIREMENTS -
GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED.
cannot be met
When the manufacturer of Product Approved sidewall,
horizontally vented, gas-fueled equipment does not provide
the parts for venting the flue gases, but identifies "special
venting systems," the following requirements shall be
satisfied by the manufacturer:
1. The referenced "special venting system" instructions
2. The "special venting systems" shall be Product Approved
A copy of all installation instructions for all Product
Approved side wall, horizontally vented, gas-fueled
equipment, all venting instructions, all parts lists
for venting instructions, and/or all venting design
instructions shall remain with the appliance or
equipment at the completion of the installation.
Issue 1621
side wall, horizontally vented, gas-fueled equipment
shall not approve the installation unless, upon
inspection, the inspector observes carbon monoxide
detectors and signage installed in accordance with the
provisions of 248 CMR 5.08(2)(a) 1 through 4.
Not Required to Be Vented" in the most current edition
of NFPA 54 as adopted by the Board; and
gas-fueled equipment installed in a room or structure
separate from the dwelling, building or structure used
in whole or in part for residential purposes.
system design or the venting system components: and
venting system.
shall be included with the appliance or equipment
installation instructions; and
by the Board, and the instructions for that system shall
include a parts list and detailed installation instructions.
507582-02
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