Installing Duct Work

Duct works are indispensable in most houses. These are used to circulate air to rooms. Installing a duct work does not seem to be much work apparently. The work primarily includes running some pipe and taping it together. But the job can be intimidating. You will be amazed to know that repairing a duct work is a much more difficult than installing it correctly.

• The first step is calculating the size of the duct. This is done by calculating the CFM room by room and the rate of friction loss. The duct size is determined based on the friction loss rate. A frictional chart is consulted to know the appropriate duct size. There are duct calculators these days that can calculate the right size in seconds. A plan is made to decide the locations through which the epopees will run.

• Thereafter the building codes for your state and municipality are consulted. It should be ensured that processes applied by your contractor are in accordance with state regulations.

• Next the duct installers put on their gears such as goggles, work gloves, helmet, and face mask or respirator. You should ensure that they do so as installing duct work involves getting amidst lots of dust and dealing with sharp and pointed objects. It is always wise to take enough measures to prevent a mishap at your place.

• They begin their work by setting the mounting ring for your duct work somewhere above the furnace, fan or air conditioner. They secure it in place with screws.

• The duct is then run along the route specified in their r plans. It is lifted to the ceiling, or placed on floor, or mounted on walls using the metal straps. These leashes are fixed after every 3 to 4 feet to secure the duct in place. The straps are fixed with hammer or nails.

• After a length of duct is done with, a connecting collar is inserted into the end. A new length of duct is then put onto the opposite side of the collar. A duct tape is used to join the ducts.

• If excess duct is left after the pipes are run through the entire length from the HVAC unit to the supply end, the excess part is cut with wire cutters and scissors. One end of the duct is fixed to the cooling and heating unit. The other end is aligned to the grille. It is screwed in place.

• The entire length of the duct is wrapped with an insulator. Sometimes the duct installer wraps the insulation again with duct tape. This maximizes the life of your duct work.

• They also test your system by turning it on and checking that you have significant airflow through each grille. They also crawl along the length of each duct to ensure that there are no leaks.

If you are comfortable with handling the procedures of installing ducts, you can do it on your own too.



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