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UL 441

UL Standard for Safety Gas Vents

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Organization: UL
Publication Date: 8 April 2016
Status: active
Page Count: 55
scope:

These requirements cover Types B and BW gas vents and Types B and BW gas vent roof jacks intended for venting gas appliances equipped with draft hoods to burn only gas. Type B vents are also intended for use with other Category I appliances that specify they are for use with Type B gas vents.

The gas vents covered by these requirements are intended for installation in accordance with the National Fire Protection Association Standards for Chimneys, Fireplaces, Vents, and Solid-Fuel Burning Appliances, NFPA 211 the National Fuel Gas Code, NFPA 54, the Department of Housing and Urban Development Mobile Home Construction and Safety Standards, Chapter II of 24 CFR, Part 280, the International Mechanical Code, and the Uniform Mechanical Code.

Document History

UL 441
April 8, 2016
UL Standard for Safety Gas Vents
These requirements cover Types B and BW gas vents and Types B and BW gas vent roof jacks intended for venting gas appliances equipped with draft hoods to burn only gas. Type B vents are also intended...
April 8, 2016
UL Standard for Safety Gas Vents
These requirements cover Types B and BW gas vents and Types B and BW gas vent roof jacks intended for venting gas appliances equipped with draft hoods to burn only gas. Type B vents are also intended...
April 8, 2016
UL Standard for Safety Gas Vents
for These requirements cover Types B and BW gas vents and Types B and BW gas vent roof jacks intended for venting gas appliances equipped with draft hoods to burn only gas. Type B vents are also...
March 5, 2010
UL Standard for Safety Gas Vents
These requirements cover Types B and BW gas vents and Types B and BW gas vent roof jacks intended for venting gas appliances equipped with draft hoods to burn only gas. Type B vents are also intended...
March 5, 2010
UL Standard for Safety Gas Vents
These requirements cover Types B and BW gas vents and Types B and BW gas vent roof jacks intended for venting gas appliances equipped with draft hoods to burn only gas. Type B vents are also intended...
March 5, 2010
UL Standard for Safety Gas Vents
These requirements cover Types B and BW gas vents and Types B and BW gas vent roof jacks intended for venting gas appliances equipped with draft hoods to burn only gas. Type B vents are also intended...
441
January 16, 1996
UL Standard for Safety Gas Vents
A description is not available for this item.
January 16, 1996
UL Standard for Safety Gas Vents
These requirements cover Types B and BW gas vents and Types B and BW gas vent roof jacks intended for venting gas appliances equipped with draft hoods to burn only gas. Type B vents are also intended...
441
January 16, 1996
UL Standard for Safety Gas Vents
A description is not available for this item.
January 16, 1996
UL Standard for Safety Gas Vents
These requirements cover Types B and BW gas vents and Types B and BW gas vent roof jacks intended for venting gas appliances equipped with draft hoods to burn only gas. Type B vents are also intended...

References

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