Caulking Compounds: Even though not particularly created for HVAC purposes, specified caulking compounds could be used to seal small gaps and penetrations in ductwork. Selecting a compound with the required flexibility and heat resistance is very important for ensuring powerful and sturdy seals. Smart Thermostats: These devices hook up with https://ducting-polyurethane25791.xzblogs.com/76050287/details-fiction-and-pu-ducting-sheet