have one six inch duct that runs to my family room. There is only on register in that room and I want to add another inline before the existing box. I'm adding a 6"x4" register box. What type of connector should I use to tap into the 6" duct? Does it matter if I use a saddle or a 'Y'?
2006-10-09 14:29:06 · 7 answers · asked by Jim C 5 in Home & Garden ➔ Do It Yourself (DIY)
Most heating and air systems are based on static pressure not air velocity(although they are linked) so a Y or a T will create the same effect...however your only going to acheive about 120 cfm on a six inch run, regardless of 1 register or 2, so you will most likely want to make an entire new run....keep in mind that you will be affecting the entire design of the system and may be robbing airflow from another space.
2006-10-09 14:33:25 · answer #1 · answered by proto_moose 1 · 2⤊ 0⤋
Tapping the 6 inch duct will not help your battle with heat or cool. You will need to tap into the main duct to improve things.
2006-10-10 03:10:25 · answer #2 · answered by wowwhatwasthat 4 · 0⤊ 0⤋
"y" off is ok ,but use two smaller registers ; reduce the size of the existing ;and have two smaller ones in the room; you'll have better distribution of the air pressure; more efficiency. you have only so much air pressure from your system .maybe make a few others in the building smaller too ;to build up more pressure to your family room
2006-10-10 00:16:34 · answer #3 · answered by pahump1@verizon.net 4 · 0⤊ 0⤋
You need to make another run back to the main trunk or plenum. Putting in a wye into the branch will not increase the volume of air delivered.
2006-10-10 01:25:36 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Proto is right as rain.
2006-10-10 08:09:33 · answer #5 · answered by bob r 4 · 0⤊ 0⤋
I would use a sadle
2006-10-09 21:34:04 · answer #6 · answered by mr.dj 3 · 0⤊ 0⤋
proto is right
2006-10-09 22:00:12 · answer #7 · answered by T C 6 · 0⤊ 0⤋