The plenum connects to the main source duct, while the air handler will be the machine that heats or cools the air. Attach the suitable ingredient towards your process utilizing screws or metallic straps, making sure a secure relationship. Pre-insulated ducts will not be constructed working with any sheet metals. https://felixug1k2.blogdanica.com/32022641/the-best-side-of-air-conditioning-duct-installation