How do I add a ceiling vent?
#1
04-05-13, 07:57 AM
How do I add a ceiling vent?
I just got a zoned system installed in my house, and it works great except one vent in a hard to cool room just has too much air flowing through it. I want to add a second air vent in that room to balance things out.
I have flexible mylar round ductwork, but unfortunately I can't get into the attic of my house at this location, so I will need to rip out some ceiling. I wanted to T in a second vent, or maybe a better idea is to connect the existing duct to the new vent, then add more duct to go back to the existing vent. Is this a DYI project? Dow do I seal the duct to the vent?
I have flexible mylar round ductwork, but unfortunately I can't get into the attic of my house at this location, so I will need to rip out some ceiling. I wanted to T in a second vent, or maybe a better idea is to connect the existing duct to the new vent, then add more duct to go back to the existing vent. Is this a DYI project? Dow do I seal the duct to the vent?
#2
04-05-13, 10:41 PM
Group Moderator
I read this earlier and I just came back to see if any clarifications were posted.
I'm a little confused. How will two vents be better than one ?
Hard to cool room ........ and too much air. Is the air too loud ?
I'm a little confused. How will two vents be better than one ?
Hard to cool room ........ and too much air. Is the air too loud ?
#4
04-07-13, 09:18 PM
I have switched to a zoned system which means splitting all the vents into one of three zones. Zone 1 and 2 all have at least 3 vents, so airflow when only one zone is calling is fine for these zones, but zone 3 has only 2 vents. One of the two rooms was the hardest to cool, so i need all that cool air in there, but all out of one ceiling vent is a bit much. Adding a second vent to keep all the cooling in this room, but also to decrease the velocity a bit. I do have a bypass damper if pressure gets excessive.
The challenge is having this 4-ton unit not cause a hurricane when the zone with only two vents is calling and the temp outside is 90 and inside is 80, to the opposite extreme where when its 120 out, the compressor is operating on stage 2, and I'm lucky if the house will stay 85.
The challenge is having this 4-ton unit not cause a hurricane when the zone with only two vents is calling and the temp outside is 90 and inside is 80, to the opposite extreme where when its 120 out, the compressor is operating on stage 2, and I'm lucky if the house will stay 85.
#5
04-07-13, 09:34 PM
Group Moderator
I understand about the velocity.
You will have to identify which way the beams run since you'll need to stay in the same beam section as the existing outlet. you'll need to open the sheetrock from beam to beam so that it can be put back in. The hardest thing to do will be to split the existing supply line.
You will have to identify which way the beams run since you'll need to stay in the same beam section as the existing outlet. you'll need to open the sheetrock from beam to beam so that it can be put back in. The hardest thing to do will be to split the existing supply line.
#6
04-08-13, 12:31 PM
This is the plan, at least. I'm on the process of cutting a 10.5 x 10.5 hole on the other side of the room. When that is done I hopefully will see the duct close by since I know the path it should be taking to the next room. I have 8' flexible ducts, and I bought 25' more. The existing and new vents at about 5' from each other. I plan to disconnect the existing duct from the existing vent, then see if I can pull it back through the new hold.
I bought a T and a Y but the T looks like it could fit through the 10.5 inch hole. The Y is too large for the hole. So then cut the old duct shorter, and hook it to one end of the T. Add some new duct to the other end of the T then TRY to get it through the hole. If I need to make the hole bigger I will, but that means call a ceiling repair guy.
Then pull the new duct through the old hole tight. The hard part will be adding more new duct to the T through the hole, and that might not be possible. Then I'll wrap some insulation around the T. Pull the duct through the new hold, then connect the two vents to the ducts. Sounds good on paper, at least. The reality is, I'll likely need to make a bigger hole to do the work through.
I have duct Seal-It and giant tie wraps to connect the flexible dict to the vents and T.
I bought a T and a Y but the T looks like it could fit through the 10.5 inch hole. The Y is too large for the hole. So then cut the old duct shorter, and hook it to one end of the T. Add some new duct to the other end of the T then TRY to get it through the hole. If I need to make the hole bigger I will, but that means call a ceiling repair guy.
Then pull the new duct through the old hole tight. The hard part will be adding more new duct to the T through the hole, and that might not be possible. Then I'll wrap some insulation around the T. Pull the duct through the new hold, then connect the two vents to the ducts. Sounds good on paper, at least. The reality is, I'll likely need to make a bigger hole to do the work through.
I have duct Seal-It and giant tie wraps to connect the flexible dict to the vents and T.
