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Appendix
XG0146 - 180405
(1) Revise NFPA-54 section 10.5.4.2 by adding a second exception as
follows:
Existing chimneys shall be permitted to have their use continued
when a gas conversion burner is installed, and shall be equipped
with a manually reset device that will automatically shut off the
gas to the burner in the event of a sustained back-draft.
(2) Revise 10.8.3 by adding the following additional requirements:
(a) 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
finished grade in the area of the venting, including but not
limited to decks and porches, the following requirements shall
be satisfied:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time
of installation of the side wall horizontal vented gas fueled
equipment, the installing plumber or gas fitter shall observe
that a hard wired carbon monoxide detector with an alarm and
battery back-up 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 horizontal 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 gas fueled
equipment is installed in a crawl space or an attic, the hard
wired carbon monoxide detector with alarm and battery back-
up may be installed on the next adjacent floor level.
b. In the event that the requirements of this subdivision can
not be met 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 2042 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”.
Appendix C: Amendment
(Gas Fireplace / Equipment sold in the State of Massachusetts) 5.08:
Modifications to NFPA-54, Chapter 10
4. INSPECTION. The state or local gas inspector of the 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.
(b) EXEMPTIONS: The following equipment is exempt from 248
CMR 5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10 entitled “Equipment Not
Required To Be Vented” in the most current edition of NFPA 54 as
adopted by the Board; and
2. Product Approved side wall horizontally vented 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.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING
SYSTEM PROVIDED. When the manufacturer of Product
Approved side wall horizontally vented gas 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 system
design or the venting system components; and
2. A complete parts list for the venting system design or venting
system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING
SYSTEM NOT PROVIDED. When the manufacturer of a
Product Approved side wall 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 shall
be included with the appliance or equipment installation
instructions; and
2. The “special venting systems” shall be Product Approved by
the Board, and the instructions for that system shall include a
parts list and detailed installation instructions.
(e) 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.
(3) After NFPA-54 section 10.10.4.2 add a new section 10.10.4.3 as
follows:
When more than four gas appliances are to be vented through a
common gas vent or common horizontal vent manifold, a plan of
the proposed vent installation shall be submitted to the Inspector
and the serving gas supplier for review and approval.
Extraction from: Massachusetts Rules and Regulations
5.00: Amendments To 2002 Edition Of ANSI Z223.1-NFPA-54
