Diy Duct Work Attic Installing

Do it yourself hvac.

Diy duct work attic installing.

If the air duct isn t long enough it is possible to add extra length. Raise the plenum up in place and attach with self tapping screws. 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. The big advantage over a full rigid installation is sound control the installations are quieter than fully rigid ones.

Place ducts on top of joists in a ceiling or attic. Adding heat runs in a basement may change the airflow in the ductwork going to other rooms. Installing flexible duct insulated duct diy 1. I called out the original hvac company and they took a look and said they saw no water.

I ll show you how to get the job done right. It was new when the ac was put in 7 years ago. 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. The take offs may have an inside hammer lock which is a flange that bends over inside the plenum.

Each register should have its own damper that can be accessed for adjustment. I use the caulking gun with air duct sealant to get back in the spaces it s hard to reach with the mastic. The first thing you want to do is take either air duct sealant or mastic and spread it around the take off. 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.

Remove existing ductwork where needed. Supply air duct installation. Install dampers at the registers to adjust airflow. Avoid any hot elements such as water heaters heater or stove exhausts or hot water pipes and electrical elements such as junction boxes or.

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