UL - 727
UL Standard for Safety Oil-Fired Central Furnaces
|Publication Date:||1 January 1994|
These requirements cover oil-fired central furnaces which include forced-air furnaces of the downflow, horizontal, and upflow types. Floor-mounted unit heaters designed to supply heated air through ducts are covered also by these requirements.
These requirements cover furnaces intended to burn standard grade fuel oils as specified in the Specifications for Fuel Oils, ASTM D396.
Requirements for the installation and use of oil-burning equipment are included in the Standard for Installation of Oil-Burning Equipment, NFPA 31, and in codes such as the BOCA National Mechanical Code, the SBCC Standard Mechanical Code, and the IAPMO Uniform Mechanical Code. The applicable requirements are to be utilized in conjunction with this standard.
A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this Standard, and that involve a risk of fire, electric shock, or injury to persons shall be evaluated using the appropriate additional component and end-product requirements as determined necessary to maintain the acceptable level of safety as originally anticipated by the intent of this Standard. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this Standard cannot be judged to comply with this Standard. Where considered appropriate, revision of requirements may be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this Standard.