Diy Duct Work Attic Installing

Take care not to place your duct work too near any strong sources of heat such as that in a hvac device and avoid curling the duct around a sharp point.

Diy duct work attic installing. If the air duct isn t long enough it is possible to add extra length. It was new when the ac was put in 7 years ago. 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. I use the caulking gun with air duct sealant to get back in the spaces it s hard to reach with the mastic.

Supply air duct installation. Place ducts on top of joists in a ceiling or attic. The attic ductwork is flex duct work. Adding heat runs in a basement may change the airflow in the ductwork going to other rooms.

Step 2 installing the ductwork once you have an idea of where the ductwork should go start with the plenum and screw that into position using duct brackets and suitable screws. The take offs may have an inside hammer lock which is a flange that bends over inside the plenum. If those dampers can t be accessed from below you ll want to install them close enough to the register so that you can reach them through the register opening. 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.

On the floor cut in and attach the rectangular take offs to the front and rear of the plenum. Installing flexible or insulated duct is an easy diy project. In this video i use mastic and air duct sealant t. 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.

Raise the plenum up in place and attach with self tapping screws. Each register should have its own damper that can be accessed for adjustment. I ll show you how to get the job done right. Installing flexible duct insulated duct diy 1.

Avoid any hot elements such as water heaters heater or stove exhausts or hot water pipes and electrical elements such as junction boxes or. Do it yourself hvac. Remove existing ductwork where needed. I called out the original hvac company and they took a look and said they saw no water.