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COMMONWEALTH OF MASSACHUSETTS
9
COMMONWEALTH OF MASSACHUSETTS
9.1
Important instructions for the commonwealth of
Massachusetts
The Commonwealth of Massachusetts requires compliance with
regulation 248 CMR 4.00 and 5.00 for installation of through – the –
wall vented gas appliances as follows:
a)
For all side wall horizontally vented gas fueled equipment in-
stalled 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 ter-
mination 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:
INSTALLATION OF CARBON MONOXIDE DETECTORS
: At the time of in-
stallation of the side wall horizontal vented gas fueled equipment,
the installing plumber or gasfitter 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 in-
stalled. In addition, the installing plumber or gasfitter shall observe
that a battery operated or hard wired carbon monoxide detector
with an alarm is installed on each additional level of the dwell-
ing, 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.
− 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.
− In the event that the requirements of this subdivision cannot
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.
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.
SIGNAGE
: A metal or plastic identification plate shall be perma-
nently 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”.
INSPECTION
: The state or local gas inspector of the side wall hor-
izontally vented gas fueled equipment shall not approve the in-
stallation unless, upon inspections, the inspector observes carbon
monoxide detectors and signage installed in accordance with the
provisions of 248 CRM 5.08(2)(a) 1 through 4.
b)
EXEMPTIONS
: The following equipment is exempt from 248 CRM
5.08(2)(a) 1 through 4:
− The equipment listed in Section 10 entitled “Equipment Not
Required To Be Vented” in the most current edition of NFPA
54 as adopted by the board;
− 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 SYS-
TEM REQUIRED
: When the manufacturer of Product Approved side
wall horizontally mounted gas equipment provides a venting sys-
tem design or venting system components with the equipment, the
instructions provided by the manufacturer for the installation of the
equipment and venting shall include:
− Detailed instructions for the installation of the venting sys-
tem or the venting system components;
− A complete parts list for the venting system design or venting
system.
d)
MANUFACTURERS REQUIREMENTS - GAS EQUIPMENT VENTING SYS-
TEM NOT PROVIDED
: When the manufacturer of Product Approved
side wall horizontally vented gas fueled equipment does not pro-
vide the parts for the venting of flue gases, but identifies “special
venting systems”, the following requirements shall be satisfied by
the manufacturer:
− The referenced “special venting systems” shall be included
with the appliance or equipment installation instructions;
− 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 instructions for all Product Approved side wall hor-
izontally vented gas fueled equipment, all venting instructions, all
parts lists for venting instructions and/or venting design instruc-
tions shall remain with the appliance or equipment at the comple-
tion of the installation.
