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Attention residents of the Commonwealth of Massachusetts:
In the Commonwealth of Massachusetts the following
regulation went into effect on 12/30/2005:
(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 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".
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
C 950/C 1050 (Pro TL 175 C/199 C) – 6 720 805 440 (2019/10)
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) MANUFACTURERS REQUIREMENTS - GAS EQUIPMENT
VENTING SYSTEM REQUIRED. When the manufacturer of
Product Approved side wall horizontally mounted gas
equipment provides a venting system design or venting system
components with the equipment, the instructions provided by
the manufacturer for the installation of the equipment and the
venting shall include:
1. Detailed instructions for the installation of the venting
system 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 the
venting of 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 products
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.
Installation instructions
37
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