check my reference rather then your HVAC gear.Thermal Imaging: Thermal imaging cameras might help detect temperature distinctions while in the ductwork, which can show the existence of leaks. The digital camera will Exhibit the temperature versions, making it possible for you to definitely recognize areas in which conditioned air is check my source escaping.A longer-lasting system to fix leaks in your ductwork is by using a paint brush and mastic. Mastic will harden in a short length of time and fully seal the leaks in your ductwork. A 50 percent-gallon of warmth rated mastic for ductwork will start out at all over $twenty. See the whole Select HVAC How to Seal Ductwork Guideline for specifics.