Quote:
Originally Posted by Donger
I wouldn't think that shutting of the supply vents to unused rooms would cause any issues. I would think that the volume of air that the fan pushes is what it is, and that closing off supply vents would simply allow that air to be pushed to the vents that are open.
Am I wrong? |
Yes this is very wrong. The air moves through a piece of duct work. The duct work will only flow a certain amount of air. If you shut of vents you are putting external pressure on your blower motor which will make it work harder to try and attain the RPM's that it is suppose to turn. Which will make the motor get hot and over a period of time will make it burn out earlier than it should.
Another thing it can do is not move enough air across the indoor coil, the evaperator coil, which will make your system not cool properly and can send liquid back to the compressor in your outdoor unit causing it to slug and burn it out prematurely as well.