78 Appendixes
6.8 Requirements for the State of
Massachusetts
NOTICE BEFORE INSTALLATION
This appliance must be installed by a licensed
plumber or gas fitter in accordance with the
Massachusetts Plumbing and Fuel Gas Code 248
CMR Sections 4.00 and 5.00.
IMPORTANT: In the State of Massachusetts (248 CMR
4.00 & 5.00)
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. No installation or replacement
of a vented gas appliance shall be permitted
unless a battery powered or electrically hard
wired carbon monoxide detector is present on
the same floor as the appliance or on the next
adjacent floor when the appliance is located in
a crawl space unless the appliance is located
in a detached, uninhabitable garage. For all
residential dwellings, a carbon monoxide
detector must also be present on each habitable
level of the dwelling. These requirements
shall not be deemed to waive any additional
requirements imposed by M.G.L. c. 148 §26F1/2.
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. Whenever any through-the-wall
vent is installed less than seven feet above the
finished grade, a metal or plastic identification
plate shall be permanently mounted to the
exterior of the building at a minimum height of
eight feet above grade directly in line with the
exhaust vent terminal. The sign shall read, in
print size no less than 0.5 inches 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 5.09 and 5.12.
