02-658 C.M.R. ch. 13, § 7 - Conversion Burners

Current through 2022-14, April 6, 2022

13.7.1 400,000 btu or less

When converting to propane or natural gas from another fuel source of which the input of the burner is 400,000 btu or less, the following requirements must be met:

1. The conversion burner must be a listed conversion burner.
2. The installer must obtain written verification from the manufacturer of the appliance to be converted or the burner manufacturer that the appliance is capable of being used with gas as a fuel source.
3. The burner selection criteria included in ANSI Z21.8, and the appliance and/or burner manufacturer's combustion setup instructions must be used.
4. If the appliance being converted is designed to operate with a positive chamber pressure, the appliance manufacturer or the conversion burner manufacturer must provide installation and setup instructions specific to the appliance being converted.
5. The installation must conform to NFPA #54 (2012) and ANSI Z21.8, as incorporated by reference into NFPA #54 (2012).
13.7.2 Greater than 400,000 btu

When converting to propane and natural gas from another fuel source of which the input of the burner is over 400,000 btu, the burner must be listed by Underwriters' Laboratory or by an independent nationally recognized testing laboratory and the following requirements must be met:

1. The installer must obtain written verification from the manufacturer of the appliance to be converted or the burner manufacturer that the appliance is capable of being used with gas as a fuel.
2. The burner must be selected for use in the make and model of appliance in which it is intended to be installed and must meet one of the following conditions:
A. The burner manufacturer must provide written documentation that the burner has been approved by the burner manufacturer for use in the appliance intended to be converted;
B. The burner has been tested by an independent testing laboratory in the make and model of appliance in which it is intended to be installed and has been certified for use in such appliance by the nationally recognized independent testing laboratory;
C. The burner has been tested by the appliance manufacturer in the make and model appliance in which it is intended to be installed and has been approved for use in such appliance by the appliance manufacturer.

[NOTE: The appliance and/or burner manufacturer must provide installation and combustion set-up instructions for the appliance being converted.]

3. The installation must conform to the requirements of NFPA #54 and NFPA #211 for the installation of a gas appliance.
4. For installations 1,000,000 btu or greater, the installation must conform to ASME CSD-1 (2012 edition) and NFPA # 85 (edition 2015), as applicable.
13.7.3 Oil Tank Requirements Upon Conversion to an Alternative Fuel

If an oil burning appliance is converted to an alternative fuel, but the tank is left in place so that it can be returned to service at some future date, the following requirements must be met before the alternative fuel is used:

1. The vent piping must remain intact and open to the outside of the building;
2. The fill pipe must be removed completely and the tank must be plugged with a threaded black iron plug;
3. The burner supply line must be removed and the valves on both the tank and burner must be capped or plugged; and
4. The requirements of this Section must be performed by a master or journeyman Oil Burner Technician.

Notes

02-658 C.M.R. ch. 13, § 7

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