I am in the process of finishing my basement. The heating ducts and return ducts hang overhead and there are 4 heat registers that can be opened and closed to regulate the airflow. I plan to frame out the ducts for drywall. After I frame it out, there will be about a 2 1/2 gap between the face of the drywall and the ducting. Since conventional register covers only have about an 1" depth to them I was wondering if there is some type of donut or collar so the airflow does not get lost in the soffit cavity?

Thanx

There are register frame extenders; but can be a custom order from suppliers. It is often quicker to make up wood frames around the edges and attach the registers to them.

www.heatpro.us energy businessmen's knowledge

Yes, you really have to find out the MAKE and MODEL to get good answers. There IS more than one machine made.

Thanx for the information.

If I was to build a wood frame to extend this register down from the ceiling would/should I drywall the inside of this would frame? Meaning when the air goes down through the extended frame and out through the register would it be better to go through the wood frame or through a drywalled frame? Thanks for any insight one might have regarding this.

It would be best to pass the air through sheetmetal, as one of the reasons for making metal duct is to act as a fire-proof passage that keeps the flame from the surround in case of a fire. Otherwise, as far as the air is concerned, it doesn't matter whether wood or drywall.

www.heatpro.us energy businessmen's knowledge

Yes, you really have to find out the MAKE and MODEL to get good answers. There IS more than one machine made.

So would it be possible to build a woodframe to extend it down but then attach sheet metal to the inside of the wood frame? I am sorry for all the questions but I have no clue. Thanks again.

Yes, you can make the extension out of wood or drywall, then line it with metal.

You can even make the extension out of metal, like duct installers do.

www.heatpro.us energy businessmen's knowledge

Yes, you really have to find out the MAKE and MODEL to get good answers. There IS more than one machine made.

My return air ducting hangs a little lower than the heating and they run parallel to each other. I boxed them both out as one, instead of 2 separate boxes ( all made with 2 X 2 and screws ). After boxing them out I was left with about a 1/2" to 1" gap between the new wood frame and the existing duct work. To fill the gap between the frame and ducting I used duct tape on the inside of the duct. I then filled the gap from the outside of the air duct with a high heat foam. Once the foam cured I removed the duct tape from the inside and viola..I have perfect fit, airtight boot between the framework and duct work. Another use for spray foam.
Hope this helps someone else!