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  1. ETL vs UL Listed: What’s the Difference in Commercial Kitchen Equipment?

    When selecting commercial kitchen equipment, safety certifications matter. Two of the most common are UL Listed and ETL Certified, but what do they actually mean, and is one better than the other? Here’s a clear breakdown of commercial kitchen hood certifications from the ventilation experts at HoodMart to help you make informed, code-compliant decisions.

    What Is UL Listed?

    UL (Underwriters Laboratories) is a globally recognized safety organization that develops and tests products against strict safety standards.

    A UL Listed product means:

    • It has been independently tested for safety
    • It meets specific fire, electrical, and mechanical standards
    • It complies with recognized industry requirements

    UL is often considered the “gold standard” because it not only tests products, but also helps develop many of the standards used across the industry.

    What Is ETL Certification?

    ETL (Electrical Testing Laboratories), part of Intertek, is also a Nationally Recognized Testing Laboratory (NRTL).

    An ETL Listed product means:

    • It has been tested to meet the same safety standards as ...

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  2. Rooftop Grease Buildup and How To Prevent It
    Rooftop Grease Buildup: Causes, Risks, and How to Prevent It Rooftop grease buildup is a common (and often overlooked!) issue in commercial kitchens. If your commercial kitchen exhaust hood system isn’t properly maintained, grease can escape t...

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  3. Roof Curbs for Exhaust Fans: A Complete Guide
    A roof curb might look simple, but it plays a critical role in your commercial kitchen ventilation system. If you’re installing an upblast exhaust fan, choosing the right roof curb for an exhaust fan ensures proper support, weather protection, ...

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  4. Hood Placement and Clearance to Combustibles - What it Means & Why it Matters
    Getting hood placement and clearance right isn’t optional; it’s critical for safety, performance, and passing inspection. In this guide, HoodMart breaks down commercial kitchen hood clearance requirements, what “clearance to combus...

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  5. Commercial Hood Fire Suppression Systems: How They Protect Your Kitchen
    While ventilation hoods help manage smoke and heat, they also play a critical role in fire protection when paired with an integrated suppression system. A commercial hood fire suppression system is designed to detect and stop fires at their source, o...

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