Owner`s manual

26
In addition to the Installation and Operating Instruction Manual packaged with this unvented heater, all installations in the State of
Massachusetts must use the following requirements when installing, maintaining or operating unvented propane or natural gas-fired
space heaters.
527 CMR 30.00 UNVENTED PROPANE OR NATURAL GAS-FIRED SPACE HEATERS
Section
30.01: Purpose
30.02: Scope
30.03: Definitions
30.04: Installation
30.04: Maintenance and Operation
30.01: Purpose
The purpose of 527 CMR 30.00 is to provide requirements for the installation, maintenance, and operation of unvented propane
or natural gas fired space heaters.
30.02: Scope
527 CMR 30.00 shall apply to unvented propane natural gas-fired space heaters installed in occupancies used in whole or in part
for habitation on or after April 1, 2004. 527 CMR 30.00 shall not apply to unvented propane or natural gas-fired space heaters
used in habituated spaces or those installed in accordance with 527 CMR 20.
30.03: Definition
Malfunction, shall mean condition where a space heater fails to operate properly as provided in the manufacturer's instructions.
Oxygen Depletion Safety Shutoff System (ODS): A device utilized to shut off the gas supply to the pilot or main burner when the
oxygen in the surrounding atmosphere is depleted to the percent concentration developed by the manufacturer, but under no
circumstances shall the concentration be less than 18 percent oxygen concentration.
Primary Heat: A heat source that is permanently installed and used exclusively to provide heat to the entire structure (e.g. forced
hot water, forced hot air) by means of a central heater or boiler which has a permanent fuel source (e.g. oil, natural gas or LPG)
or electric heat. 527 CMR 30.03. Primary Heat shall not include fireplaces or wood stoves.
Unvented Natural or Propane Gas-Fired Space Heater: A permanently installed stand alone gas-fired unvented room heater or
gas-fired unvented decorative room heater for connection to the house fuel supply system which utilizes natural gas or propane.
Unvented gas-fired space heaters may be used only for supplemental heat and/or decorative purposes and under no
circumstances shall they provide a primary heat source. Unvented gas-fired space heaters shall comply with ANSI Standard
Z21.11.2 - 2000 edition, Volume II.
30.04: Installation
1. A permit shall be obtained from the head of the fire department and the local or state gas inspector having jurisdiction for
the installation of all unvented propane or natural gas-fired 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 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/hr 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 manufacturer’s 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