Owner`s manual
29843-5-1012 Page 5
REQUIREMENTS FOR MASSACHUSETTS
Forallsidewallhorizontallyventedgasfueledequipmentinstalled
ineverydwelling,buildingorstructureusedinwholeorinpartfor
residential purposes, including those owned or operated by the
Commonwealthandwherethesidewallexhaustventtermination
is less than seven (7) feet above nished grade in the area of
the venting, including but not limited to decks and porches, the
followingrequirementsshallbesatised:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS.
At the time of installation of the side wall horizontal vented
gasfueledequipment,theinstallingplumberorgasttershall
observethatahardwiredcarbonmonoxidedetectorwithan
alarmandbatteryback-upisinstalledontheoorlevelwhere
thegasequipmentistobeinstalled.Inaddition,theinstalling
plumber or gastter shall observe that a battery operated
or hard wired carbon monoxide detector with an alarm is
installedoneachadditionallevelofthedwelling,buildingor
structureservedbythesidewallhorizontalventedgasfueled
equipment.Itshallbetheresponsibilityofthepropertyowner
tosecuretheservicesofqualiedlicensedprofessionalsfor
theinstallationofhardwiredcarbonmonoxidedetectors
a. In the event that the side wall horizontally vented gas
fueledequipmentisinstalledinacrawlspaceoranattic,
thehardwiredcarbonmonoxidedetectorwithalarmand
battery back-up may be installed on the next adjacent
oorlevel.
b. Intheeventthattherequirementsofthissubdivisioncan
notbemetat the time of completion of installation,the
ownershallhaveaperiodofthirty(30)daystocomplywith
theaboverequirements;provided,however,thatduring
said thirty (30) day period, a battery operated carbon
monoxidedetectorwithanalarmshallbeinstalled.
2. APPROVED CARBON MONOXIDE DETECTORS. Each
carbonmonoxidedetectorasrequiredinaccordancewiththe
aboveprovisionsshallcomplywithNFPA720andbeANSI/
UL2034listedandIAScertied.
3. SIGNAGE. A metal or plastic identication plate shall be
permanently mounted to the exterior of the building at a
minimumheightofeight(8)feetabovegradedirectlyinline
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
approvetheinstallationunless,uponinspection,theinspector
observes carbon monoxide detectors and signage installed
in accordance with the provisions of 248 CMR 5.08(2)(a) 1
through4.
(b) EXEMPTIONS:Thefollowingequipmentisexemptfrom
248CMR5.08(2)(a)1through4:
1. The equipment listed in Chapter 10 entitled
“EquipmentNotRequiredToBeVented”inthemost
currenteditionofNFPA54asadoptedbytheBoard;
and
2. ProductApprovedsidewallhorizontallyventedgas
fueled equipment installed in a room or structure
separate from the dwelling, building or structure
usedinwholeorinpartforresidentialpurposes.
(d) MANUFACTURER REQUIREMENTS - GAS
EQUIPMENT VENTING SYSTEM NOT PROVIDED.
When the manufacturer of a Product Approved side
wallhorizontallyvented gas fueledequipmentdoesnot
providethepartsforventingtheuegases,butidenties
“special venting systems”, the following requirements
shallbesatisedbythemanufacturer:
1. Thereferenced“specialventingsystem”instructions
shall be included with the appliance or equipment
installationinstructions;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
installationinstruction.
(e) A copy of all installation instructions for all Product
Approved side wall horizontally vented gas fueled
equipment, all venting instructions, all parts lists for
ventinginstructions,and/orallventingdesigninstructions
shall remain with the appliance or equipment at the
completionoftheinstallation.










