Can Automist Be Approved as an Alternative to a 13D Sprinkler System?
Yes, Automist can be accepted as an alternative to an NFPA 13D system, as it is UL-listed and complies with NFPA 750, the recognized standard for water mist fire protection systems in one- and two-family dwellings.
The 2023 edition of NFPA 750 explicitly recognizes electronically operated water mist nozzles as a subcategory of automatic water mist nozzles:
3.3.25.2 Electronically-Operated Automatic Water Mist Nozzle – Nozzles that are normally closed and operated by electrical energy initiated and supplied by fire detection and control equipment.
NFPA 750 supports performance-based fire suppression solutions and places reliance on listed water mist systems that have undergone rigorous fire testing as part of the listing process. Automist is the world’s first targeted residential water mist system to achieve UL 2167A certification, simplifying AHJ approval as a compliant alternative to 13D sprinklers.
Authorities Having Jurisdiction (AHJs) can easily verify Automist’s UL certification and compliance via UL Product iQ using the file number EX29276 or searching for the manufacturer Plumis.
Download the UL Certification: UL System Certificates for Automist (PDF)
If your AHJ requires further documentation, we provide third-party test reports, UL certification details, and case studies demonstrating Automist’s effectiveness. We recommend engaging with your AHJ early in the process to align with local fire safety requirements and ensure approval.
Learn more - Can Automist cover an entire house?
Disclaimer: This information is not intended to be a comprehensive guide to all of the aspects of the building/fire code but rather a useful source of background information. Whilst every care has been taken to ensure that the contents of this post are correct at the time of publication, it should never be used as any form of substitution for the full NFPA® codes, standards, recommended practices, and guides. It should be noted that there may be specific additional requirements dependent upon the Authority Having Jurisidiction (AHJ).