space heaters. Said permits shall be conditioned upon final inspection and approval of
installation by the head of the fire department and the local or state gas inspector having
jurisdiction. A copy of the manufacturer’s installation/operating literature shall be submitted
with each permit application. Before operation, the Head of the Fire Department and the
local or state gas inspector shall inspect the installation for compliance with 527 CMR and
248 CMR (Board of State Examiners of Plumbers and Gas Fitters).
(2)
Unvented propane or natural gas-fired space heaters shall conform to ANSI Z21.11.2, be
equipped with an oxygen depletion safety (ODS) shutoff system and be listed and approved
in accordance with 248 CMR.
(3)
Unvented propane or natural gas-fired space heaters shall be installed in accordance with
their listings
and the manufacturer’s instructions. Proper clearances to combustibles shall
be maintained. In no case shall the clearances be such as to interfere with combustion air
and accessibility.
(4)
Installations shall be of a permanent type, with a permanently piped fuel supply in
accordance with 248 CMR. LPG appliances shall be subject to the storage requirements in
accordance with 527 CMR 6.00. Portable unvented propane or natural gas-fired space
heaters shall be prohibited.
(5)
Unvented propane or natural gas-fired space heaters shall be prohibited in bedrooms and
bathrooms.
(6)
Space heaters shall be properly sized for the room or space of installation, but shall not
exceed a maximum of 40,000 BTU input per room or space.
(7)
In occupancies with an unvented propane or natural gas-fired space heater, at least one
listed carbon monoxide detector shall be installed and maintained in any room or space
where said heater has been installed in accordance with the manufacturers instructions.
Any building wherein said heater is to be installed shall, as a precondition to such installation,
have working smoke detectors installed and maintained in accordance with the requirements
of 780 CMR (State Board of Building Regulations and Standards) in effect at the time of
construction or if no said requirement was in effect at the time of construction, installed as
provided for in M.G.L.c. 148, §26E.
(8)
In rooms and buildings served by an unvented propane or natural gas-fired space heater, a
primary source of heat, which is operable, shall be permanently installed and maintained in
said building in accordance with 105 CMR (Department of Public Health).
(9)
Sellers of unvented propane or natural gas-fired space heaters shall provide to each
purchaser a copy of 527 CMR 30.00 upon sale of the unit.
30.05: Maintenance and Operation
(1)
The maintenance and operation of unvented propane or natural gas-fired space heaters
shall be in accordance with the manufacturer’s instructions. The manufacturer’s instructions
shall be left with the appliance and made available for any public official.
(2)
Any malfunction of an unvented space heater shall forthwith be reported by the owner to the
head of the local fire department.
REGULATORY AUTHORITY
527 CMR 30.00 M.G.L. c. 148, §25A
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