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SPECIAL REQUIREMENTS CONTINUED
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 certifi ed.
3. SIGNAGE. A metal or plastic identifi cation 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 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 fl ue gases, but identifi es “special venting systems,” the following requirements shall be satisfi ed by the
manufacturer:
1. The identifi cation of each “special venting system” shall include either the listing of the website, phone number or
manufacturer’s address where the venting system installation instructions can be obtained; and
2. The “special venting systems” shall be Product Approved by the Board, and the instructions provided with that
system shall include a parts list and detailed installation instructions.
(e) A copy of all installation instructions for the Product Approved side wall horizontally vented gas fueled equipment and
all the venting instructions, parts lists, and/or all design instructions for the venting system shall remain with the appli-
ance or equipment at the completion of the installation.