Tapping Into Existing Metal Duct - HVAC - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC


Thread Tools Display Modes
Old 11-29-2007, 03:46 PM   #1
Join Date: Nov 2007
Location: Atlanta
Posts: 1
Rewards Points: 10

Tapping into existing metal duct

Hi everyone. I've just spent 30 minutes searching this site for my answer and was unable to find it so, if this has been covered before, please kindly direct me to the appropriate post.
My question: I have a 6" metal duct serving my bedroom and I would like to tap into it to siphon off a little air and feed it directly to my closet using 4" flex duct. What is the best way to cut the 4" hole in the metal duct (I don't have a 4" metal cutting hole saw)? What do I attach to the metal duct (and how do I attach it) to transition to the smaller flex duct? Can I buy the parts at Lowes or HD?
Thanks in advance!!


Mike_Atlanta is offline   Reply With Quote
Old 11-30-2007, 12:07 AM   #2
Join Date: Nov 2007
Posts: 2
Rewards Points: 10

Hi Mike-I am not a professional but have done the exact same thing in a previous house. If you think you will ever work in metals or need a circle cutter I suggest a very nifty tool that is sold at Home Depot, HVAC Dept. It is a circle cutter. It cost $54 but it is worth every penny. It is used with any drill. The hole is cut by a special spiral drill bit to any size you wish. If you can fit a butterfly damper (not sure of the proper lingo) in the 6 inch pipe I suggest you place one in there and fit a louvered control wall vent in both the bedroom and the closet. Leave all doors open for efficient heating cooling. Hope that helps.


lhempel is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
isolating noise transmission in metal duct work BrandonHook HVAC 2 12-07-2008 06:37 AM
Modifying existing duct work Thurgee HVAC 3 04-05-2007 09:35 AM
Connect metal duct to flex? tigerbalm2424 HVAC 3 03-12-2007 02:30 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1