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Weekly Top PickApril 12, 2026

Quick Tip: Using a Thermal Leak Detector to Quickly Identify Ductwork Gaps – A Technician Hack

Tight ductwork is crucial for HVAC efficiency. This simple trick helps technicians quickly locate and seal air leaks, saving time and improving system performance.

Technicians are always looking for ways to streamline their work and improve efficiency. A YouTube video from HVAC technician, HvacExpert, demonstrates a valuable time-saving hack for identifying ductwork leaks. The technique involves using a thermal leak detector – often referred to as an infrared leak detector – to pinpoint areas of temperature difference within the ductwork. By holding the detector near the duct joints and seams, technicians can quickly identify areas where conditioned air is escaping. The detector highlights areas where the temperature is significantly lower than the surrounding air, indicating a leak. This method is particularly effective for locating small gaps and penetrations that might be missed during a visual inspection. The technician recommends focusing on joints, seams, and connections where ductwork is joined or passes through walls or floors. This simple, low-cost tool can significantly improve system efficiency and reduce energy consumption. Source: www.youtube.com/watch?v=Mzg27GqRL5g