Справочник Пользователя для Burnham FREEDOM 101008-01R1-2/07

The Commonwealth of Massachusetts requires compliance with regulation 248 CMR 4.00 and 5.00 for installation of 
side-wall vented gas appliances as follows:

(a) 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 fi nished grade in the area of the venting, 
including but not limited to decks and porches, the following requirements shall be satisfi ed: 

1.   INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal 

vented gas fueled equipment, the installing plumber or gasfi tter shall observe that a hard wired carbon monoxide 
detector with an alarm and battery back-up is installed on the fl oor level where the gas equipment is to be installed. 
In addition, the installing plumber or gasfi tter 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 qualifi ed licensed professionals for the installation of hard wired carbon monoxide detectors.

a. 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 fl oor level.

b. In the event that the requirements of this subdivision can not 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.

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.