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Posted on 8/8/22 at 4:22 pm to GREENHEAD22
quote:
Just googling it most of what I have seen says closing off vents to push additional airflow and cooling to another room doesn't work and just overpressure of the system.
You are getting downvotes but this statement is correct - by restricting air flow by closing room vents you potentially may increase static pressure (=resistance to air flow) in the ducts that will reduce overall air flow, make the HVAC work harder and shorten its operational lifespan. However, if your ducts have dampers in the attic you can certainly adjust those to try balance air flow among the rooms. Also not uncommon for ducts to be under-sized and HVAC tonnage oversized.
Do you have 2 HVACs, one for the upstairs and one for the downstairs? If you only have 1 HVAC is it zoned or no? Upstairs are notoriously difficult to cool effectively with a single HVAC without zoning.
You might want to consider having a energy audit/blower door test to see if you have significant air filtration in the upstairs bedrooms. They are not terribly expensive, $300-400, and some electrical utilities will pay for the audit - you have to check. You might have a issue that can be corrected with additional attic sealing and added insulation, un-related to HVAC operation.
This post was edited on 8/8/22 at 6:11 pm
Posted on 8/8/22 at 4:52 pm to GREENHEAD22
Something not mentioned yet. Where's your thermostat and what type is it? Old?
Depending on its location, it could sense it's at the right temperature at its location, but that's not a comfortable temperature in the specific rooms.
This is usually a problem for in the Winter where the heat rises and tricks the thermostat to stop, while the closed door rooms freeze.
I could see the opposite occur for AC if the circumstances are right.
The smart room sensors come in handy in this situation.
Depending on its location, it could sense it's at the right temperature at its location, but that's not a comfortable temperature in the specific rooms.
This is usually a problem for in the Winter where the heat rises and tricks the thermostat to stop, while the closed door rooms freeze.
I could see the opposite occur for AC if the circumstances are right.
The smart room sensors come in handy in this situation.
This post was edited on 8/8/22 at 5:21 pm
Posted on 8/9/22 at 12:56 am to GREENHEAD22
quote:
Well I guess I will close the vents in the guest and bathroom and see if that helps at all.
I've played around with the vents in my place for awhile until I got everything like the wife likes it.
you don't have to shut everything down completely...you can close them partially and get a bit more flow elsewhere.
Posted on 8/9/22 at 7:51 am to GREENHEAD22
Modern AC ductwork and returns SUCK!
I have a 1800 ² ft house it has returns in 4 areas of the house. Moves air very well.
I have a 1800 ² ft house it has returns in 4 areas of the house. Moves air very well.
Posted on 8/9/22 at 3:40 pm to GREENHEAD22
How much do you want to spend? I had a similar problem and realized those rooms upstairs had peaked ceilings and only one return air that was in the game room. Ceiling fans basically just pushed around all the hot air from the rest of the house.
Had a guy put smaller return airs in each bedroom ceiling. Essentially sucks the hot air out and makes the rooms significantly cooler.
Cheaper than a new ac system. I think we spent about $2k.
Had a guy put smaller return airs in each bedroom ceiling. Essentially sucks the hot air out and makes the rooms significantly cooler.
Cheaper than a new ac system. I think we spent about $2k.
Posted on 8/9/22 at 10:36 pm to GREENHEAD22
I have a cookie cutter home and the upstairs in take was too narrow so so the AC company installled a larger intake ($700) and it is unreal the difference in air flow and temperature.
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