10 Installation
(for qualified installers only)
© Travis Industries
9/25/17-1468
Maestro
Massachusetts Requirements
NOTE: The following requirements reference various Massachusetts and national codes not contained in this document.
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 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:
Installation of Carbon Monoxide Detectors
At the time of installation 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 installed. 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 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 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 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”.
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
dwelling, 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 Approved side wall horizontally vented gas fueled 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” instructions shall be included with the appliance or equipment installation
instructions; and
• 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.
A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting
instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with the appliance or
equipment at the completion of the installation.
See Gas Connection section for additional Commonwealth of Massachusetts requirements.
