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Zeraph · 05-23-2009, 02:34 PM

4 bedroom, 2 bath. 1 AC unit. About 10 air vents. Is it ok to close or partially close all but 2 vents? I'm worried the air pressure might rise a bit too much inside the vents and it will wear the machine down quicker.

Willravel · 05-23-2009, 02:45 PM

I've closed a lot of vents with my heater and it seems to work fine, but I don't know if this would have a simple answer.

Tully Mars · 05-23-2009, 04:34 PM

Really need more info. How old is the unit? Brand?

But really it shouldn't make a difference.

Lindy · 05-23-2009, 05:47 PM

Makes a difference if you have a two storey house with the unit in the basement. It works fine for heat (warm air rises) but not for cooling. My furnace couldn't push much of that cool heavy air up fifteen feet to the second floor, and they told me it would wear out the blower motor trying. I ended up putting another a/c unit (but no heat) in the partly finished third floor attic, to cool the second floor. It is mounted horizontally, lying right on the attic floor. Works great. BTW, I was told that it was all right to close the vents, but make sure to NEVER block the return air registers.

No problemo on the upstairs unit, since the return air is on the CEILING.

Lindy

Tully Mars · 05-23-2009, 06:50 PM

Quote:

Originally Posted by Lindy

I was told that it was all right to close the vents, but make sure to NEVER block the return air registers.

Exactly

Cheater · 05-23-2009, 08:06 PM

It sounds like you are trying to cool a particular part of the house by leaving two vents open, etc. Where is the thermostat located in relation to the area you are trying to keep cool? Air pressure isn't the problem, it is air flow throughout the house you might consider.

thingstodo · 05-24-2009, 03:42 AM

AC simply works better when all is in balance.

05-23-2009, 02:34 PM	#1 (permalink)
Zeraph Banned Location: The Cosmos	Home AC 4 bedroom, 2 bath. 1 AC unit. About 10 air vents. Is it ok to close or partially close all but 2 vents? I'm worried the air pressure might rise a bit too much inside the vents and it will wear the machine down quicker.

05-23-2009, 04:34 PM	#3 (permalink)
Tully Mars Living in a Warmer Insanity Super Moderator Location: Yucatan, Mexico	Really need more info. How old is the unit? Brand? But really it shouldn't make a difference. __________________ I used to drink to drown my sorrows, but the damned things have learned how to swim- Frida Kahlo Vice President Starkizzer Fan Club

05-24-2009, 03:42 AM	#7 (permalink)
thingstodo A Storm Is Coming Location: The Great White North	AC simply works better when all is in balance. __________________ If you're wringing your hands you can't roll up your shirt sleeves. Stangers have the best candy.

05-23-2009, 02:45 PM	#2 (permalink)
Willravel ... a sort of licensed troubleshooter.	I've closed a lot of vents with my heater and it seems to work fine, but I don't know if this would have a simple answer.

05-23-2009, 05:47 PM	#4 (permalink)
Lindy Junkie	Makes a difference if you have a two storey house with the unit in the basement. It works fine for heat (warm air rises) but not for cooling. My furnace couldn't push much of that cool heavy air up fifteen feet to the second floor, and they told me it would wear out the blower motor trying. I ended up putting another a/c unit (but no heat) in the partly finished third floor attic, to cool the second floor. It is mounted horizontally, lying right on the attic floor. Works great. BTW, I was told that it was all right to close the vents, but make sure to NEVER block the return air registers. No problemo on the upstairs unit, since the return air is on the CEILING. Lindy

05-23-2009, 08:06 PM	#6 (permalink)
Cheater Tilted Location: New Jersey	It sounds like you are trying to cool a particular part of the house by leaving two vents open, etc. Where is the thermostat located in relation to the area you are trying to keep cool? Air pressure isn't the problem, it is air flow throughout the house you might consider.