I live in an older home that didn’t come with existing air duct. It also is built really flimsy. Have you ever looked into air duct upgrade? It requires the Heating, Ventilation as well as A/C company to rip down walls as well as the ceiling in order to install the 8 inch metal ducts. It is particularly invasive, messy as well as difficult on the house. It is not commanded for older homes love mine. I knew my home could not take it. I wanted something that would provide heating as well as a/c through every room in the house. I wasn’t all that interested in a ductless mini split or heat pump though. The several indoor air handlers with temperature controls didn’t appeal to me. I then found that high velocity Heating, Ventilation as well as A/C systems are perfect for older homes. They use air duct, but it is half the size as well as made of a stretchy material; Rather than rip down the wall, a few holes are drilled to thread the ducts inside of the slat. The heating as well as air then has a network to transfer all throughout the house. The plan works really well. Consider the name high velocity. It means high speed or high power. The heating as well as cooling plan can hastily whip that treated air throughout the ducts to raise or lower the temperature. Rather than wait 30 minutes for the AC to finally achieve the temperature on the temperature control, it only takes a few minutes. The upgrade as well as the functionality of this plan is what has really appealed to me. I assume when my current Heating, Ventilation as well as A/C component dies I am decreasing over to high velocity.