Important Instructions for the Commonwealth of Massachusetts |
The Commonwealth of Massachusetts requires compliance | (b) EXEMPTIONS: The following equipment is exempt from |
with regulation 248 CMR 4.00 and 5.00 for installation of | 248 CMR 5.08(2)(a)1 through 4: |
through – the – wall vented gas appliances as follows: | 1. The equipment listed in Chapter 10 entitled "Equipment |
(a) For all side wall horizontally vented gas fueled equipment | Not Required To Be Vented" in the most current edition of |
installed in every dwelling, building or structure used in | NFPA 54 as adopted by the Board; and |
whole or in part for residential purposes, including those | 2. Product Approved side wall horizontally vented gas fueled |
owned or operated by the Commonwealth and where the |
side wall exhaust vent termination is less than seven (7) feet | equipment installed in a room or structure separate from the |
above finished grade in the area of the venting, including but | dwelling, building or structure used in whole or in part for res- |
not limited to decks and porches, the following requirements | idential purposes. |
shall be satisfied: | (c) MANUFACTURER REQUIREMENTS - GAS EQUIP- |
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. | MENT VENTING SYSTEM PROVIDED. When the |
At the time of installation of the side wall horizontal vented | manufacturer of Product Approved side wall horizontally |
gas fueled equipment, the installing plumber or gasfitter shall | vented gas equipment provides a venting system design or |
observe that a hard wired carbon monoxide detector with an | venting system components with the equipment, the instruc- |
alarm and battery back-up is installed on the floor level | tions provided by the manufacturer for installation of the |
where the gas equipment is to be installed. In addition, the | equipment and the venting system shall include: |
installing plumber or gasfitter shall observe that a battery | 1. Detailed instructions for the installation of the venting sys- |
operated or hard wired carbon monoxide detector with an |
alarm is installed on each additional level of the dwelling, | tem design or the venting system components; and |
building or structure served by the side wall horizontal vent- | 2. A complete parts list for the venting system design or vent- |
ed gas fueled equipment. It shall be the responsibility of the |
property owner to secure the services of qualified licensed | ing system. |
professionals for the installation of hard wired carbon | (d) MANUFACTURER REQUIREMENTS - GAS EQUIP- |
monoxide detectors |
a. In the event that the side wall horizontally vented gas | MENT VENTING SYSTEM NOT PROVIDED. When the |
manufacturer of a Product Approved side wall horizontally |
fueled equipment is installed in a crawl space or an attic, the | vented gas fueled equipment does not provide the parts for |
hard wired carbon monoxide detector with alarm and battery | venting the flue gases, but identifies "special venting sys- |
back-up may be installed on the next adjacent floor level. | tems", the following requirements shall be satisfied by the |
b. In the event that the requirements of this subdivision can | manufacturer: |
not be met at the time of completion of installation, the owner | 1. The referenced "special venting system" instructions shall |
shall have a period of thirty (30) days to comply with the | be included with the appliance or equipment installation |
above requirements; provided, however, that during said | instructions; and |
thirty (30) day period, a battery operated carbon monoxide | 2. The "special venting systems" shall be Product Approved |
detector with an alarm shall be installed. |
2. APPROVED CARBON MONOXIDE DETECTORS. Each | by the Board, and the instructions for that system shall |
include a parts list and detailed installation instructions. |
carbon monoxide detector as required in accordance with | (e) A copy of all installation instructions for all Product |
the above provisions shall comply with NFPA 720 and be |
ANSI/UL 2034 listed and IAS certified. | Approved side wall horizontally vented gas fueled equip- |
3. SIGNAGE. A metal or plastic identification plate shall be | ment, all venting instructions, all parts lists for venting |
instructions, and/or all venting design instructions shall |
permanently mounted to the exterior of the building at a min- | remain with the appliance or equipment at the completion of |
imum height of eight (8) feet above grade directly in line with | the installation. |
the exhaust vent terminal for the horizontally vented gas | GAS PRESSURE SUPERVISION |
fueled heating appliance or equipment. The sign shall read, |
in print size no less than one-half (1/2) inch in size, "GAS | The Commonwealth of Massachusetts requires listed high |
VENT DIRECTLY BELOW. KEEP CLEAR OF ALL |
OBSTRUCTIONS". | and low gas pressure switches (manual reset) for any model |
4. INSPECTION. The state or local gas inspector of the side | with a maximum firing input greater than 1,000,000 Btu/Hr in |
accordance with 248 CMR 7.04(11)(d). |
wall horizontally vented gas fueled equipment shall not | A gas pressure regulator (field supplied) is required in the |
approve the installation unless, upon inspection, the inspec- |
tor observes carbon monoxide detectors and signage | gas train ahead of the heater, for heaters having input rates |
installed in accordance with the provisions of 248 CMR | greater than 1,000,000 Btu/Hr, in accordance with 248 CMR |
5.08(2)(a)1 through 4. | 7.04 Figure 3B requirements. |