How To Install Hvac Ductwork In Attic

Richard and obie show kev.

How to install hvac ductwork in attic. Use a draw band connector to complete the butt joint. If your supplier doesn t carry draw band connectors make your own by cutting a piece of pipe to overlap the ends and then screw and tape the band into place. The big advantage over a full rigid installation is sound control the installations are quieter than fully rigid ones. Hard ducts and flexible ducts.

Remove existing ductwork where needed. Run the new flexible air duct under the house from the floor return to the underside of the air handler and attach to the metal vent box or plenum image 1. Attic hvac systems save space. Choosing the right ductwork for installing in your attic as with home architecture and decor there are trends in the hvac world.

Well mainly it s a way to save space. Overlap one side as you normally would and create a butt joint on the other. So why put an hvac system up in the attic at all. But we don t take the idea any further.

With newer foundation systems involving embedded rebar or tension cables making in slab hvac ductwork nearly impossible there s little other option but to move it to the attic. The attic ductwork is flex duct work. Whether summers are really getting hotter or we ve lost our tolerance for heat as we grow older lots of us are tempted to yank out noisy dripping window air conditioners and replace them with quiet efficient whole house central air conditioning systems. Richard trethewey is in the basement where the ductwork is being connected and installed by hvac contractor obie rosa and his crew.

In the 70 s and 80 s in slab hvac ductwork was commonplace and took advantage of the relatively stable temperature of the slab at or near the ground. I called out the original hvac company and they took a look and said they saw no water. If the air duct isn t long enough it is possible to add extra length. Again i d suggest calling an experienced hvac pro to guarantee your ducts are installed in your attic with proper support.

The trick to getting these installations right is to use rigid ductwork for all deviations from straight then pull the ductwork taut between the two ends which now point towards each other. Recently i had another hvac company come out and put in a new bathroom vent and they told me they believed the duct work was full of water. It was new when the ac was put in 7 years ago. Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.