Commercial HVAC Systems: Staying Street Wise

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Tips On Installing Round Ductwork

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When done properly, round ductwork can last you longer, but there is a knack to installing it correctly in your HVAC system. Read on for some top tips to installing round ductwork.

Tip #1 – Install dampers at all registers

When you add heat runs to your basement, you may find that this changes the airflow in the ductwork. You should therefore install dampers in each register, close enough to the register to enable you to reach them via the register opening.

Tip #2 – Leave old tape in place

Rather than peeling away old tape from existing ductwork, simply use a utility knife to score it and take the screws out through the tape. Apply new tape right over the old stuff, saving you time and effort.

Tip #3 – Assemble pipe like a zip fastener

When assembling pipework ducting, start at one end of the pipe and create the seam as if it were a zip fastener.  Support the back of the pipe on the floor or on a work bench, and then push the seam together.

Tip #4 – Overlap joints with draw-band connectors

If you have to install pipe between two fixed points, create a butt joint by overlapping one of the crimped ends, using a draw-band to complete the joint. You can make your own draw-band connector by cutting a piece of pipe, overlapping the ends, and then taping the band into position.

Tip #5 – Two marks for accurate cutting

When you need to cut a piece of pipe, mark the size you want on either side of the open seam, using a marker pen. Open the pipe out flat over your knee, sight on the furthest mark while you make the cut and you will have a straight edge every time.

Tip #6 – Making curves in pipework

When it comes to constructing curves in your pipework, it can be tricky to get them accurate. To make life easier, move one elbow ring at a time, beginning with the connecting side. Avoid making 90 degree angles unless you really need to.

In conclusion

You can make the installation of round ductwork much easier by following these top tips. If you find that you are struggling with installing pipework in your home, perhaps the DIY route is no for you. Instead, why not contact a firm of experienced local HVAC contractors and ask them to do the job for you.