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126754-01B
9
REQUIREMENTS FOR THE COMMONWEALTH OF
MASSACHUSETTS
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 ex
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haust 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:
INSTALLATION OF CARBON
MONOXIDE DETECTORS
At the time of installation of the side wall horizon
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tal 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 car
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bon 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.
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 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.
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
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 1/2" in
size, "GAS VENT DIRECTLY BELOW. KEEP
CLEAR OF ALL OBSTRUCTIONS".
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.
EXEMPTIONS: The following equipment is
exempt from 248 CMR 5.08(2)(a) 1 through 4:
• 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
• Product Approved side wall horizontally
vented gas fueled equipment installed in a
room or structure separate from the dwell
-
ing, building or structure used in whole or
in part for residential purposes.
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:
• Detailed instructions for the installation of
the venting system design or the venting
system components; and
• A complete parts list for the venting system
design or venting system.
Gas Equipment Venting System Not
Provided
When the manufacturer of a Product Ap
-
proved side wall horizontally vented gas fu
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eled 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:
• The referenced "special venting system" in
-
structions shall be included with the appliance
or equipment installation instructions; and
• The "special venting systems" shall be Prod
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uct Approved by the Board, and the instruc
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tions for that system shall include a parts list
and detailed installation instructions.
A copy of all installation instructions for all
Product Approved side wall horizontally
vented gas fueled equipment, all venting in
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structions, all parts lists for venting instruc
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tions, and/or all venting design instructions
shall remain with the appliance or equipment
at the completion of the installation.
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