Kitchen Cooktop Downdraft Exhaust

handy man88

I have one of these above and noted this type of ducting tape used to secure metal ducting to route the exhaust outside:

Nashua 324A

Is there anything special about this tape above and beyond regular foil tape, which is used in other parts of the metail ducting? The Nashua brand is directly attaching the exhaust assembly to the first part of the ducting, and regular foil tape is used elsewhere. I assume it's because of high temperature considerations.

Reason is that I may need to disassemble the ducting to clean it out or check to see if there's grease that needs to be cleaned out.

Also, do kitchen downdraft exhausts usually have great traps?

Bob Mariani

grease traps are only used in commercial kitchens. Metal backed duct tape holds up better in this type of installations. A plumbing and heating supply store will have it. Some box stores carry it also in the duct section.

handy man88

Thanks.