ANSI/CAN/UL/ULC 1390:2024

Scope 1.1 These requirements cover solid-fuel burning fireplace inserts or hearth-mounted stoves intended to be vented through the throat or damper area of a masonry fireplace and masonry or factory-built chimney system. The appliances may be installed into new masonry fireplaces, or masonry fireplaces that have been operated for some time, i.e., in these cases the fireplace insert or hearth-mounted stove installations are retrofits. 1.2 Requirements for masonry fireplaces equipped with factory-built chimneys are provided in Annex A. 1.3 The requirements include testing with a continuous chimney liner from the appliance collar to the point of termination. 1.4 This standard addresses fireplace inserts or hearth-mounted stoves that may also incorporate catalytic combustors and/or secondary combustion systems. 1.5 Fireplace inserts or hearth-mounted stoves as covered by this standard are intended for installation in masonry fireplaces that comply with the requirements of applicable regulatory Codes. 1.6 Fireplace inserts and hearth-mounted stoves as covered by this standard are not intended for installation into factory-built fireplaces within the scope of: a) In Canada, ULC 610, Standard for Factory-Built Fireplace Systems; b) In the United States, UL 127, Standard for Factory-Built Fireplaces; nor in steel liner assemblies within the scope of: c) In Canada, ULC S639, Standard for Steel Liner Assemblies for Solid-Fuel Burning Masonry Fireplaces; d) In the United States, UL 907, Standard for Fireplace Accessories; nor in artificial fireplaces, or similar appliances (e.g., a tubular grate). 1.7 This Standard does not cover free-standing solid-fuel space heaters. Refer to: a) In Canada, ULC S627, Standard for Space Heaters for Use with Solid Fuels; b) In the United States, UL 1482, Standard for Solid-Fuel Type Room Heaters; for the applicable requirements. 1.8 The appliances covered by this Standard are intended for installation and use in accordance with the applicable Codes and Regulations as determined by the Authority Having Jurisdiction (AHJ), such as: a) In Canada: 1) The National Building Code of Canada; or 2) CSA B365 Series, Installation code for solid-fuel-burning appliances and equipment; b) In the United States: