Gasketed Doors and Fireplaces
In the 2012 and 2015 IECC code, there is still a requirement that tight fitting masonry fireplace doors had to meet UL907. However, that requirement is removed from the 2018 IECC code version. The IECC intended to remove this requirement in the 2015 code, but missed it during final edits. This has been corrected in the 2018 code. Furthermore, if a manufacturer doesn't list a door in a product's operation/installation manual, it cannot be installed on the unit.
The ICC made an announcement in 2015 which states that the requirement for gasketed doors on fireplaces has been removed and specifies where the changes were made and why.
Several states have not yet adopted the latest version of the IECC code and may not be aware of this code change. Share this information and the ICC announcement with anyone who is unaware of the update.
Download the ICC Code Change Announcement