What uses less engery to us central air or air condition unit?

Question

What uses less engery to us central air or air condition unit?

Answer 1

a room air conditioner cools a smaller area so would use less energy that a central air unit.  A small room unit can use the existing electrical wiring so that is a savings.

but then come the variables, so see the link

Answer 2

first - determin the size of the area you would like to cool..if its just a bedroom to a small living room... a window unit will do just fine. as long as u let it run 24/7 (this allows the room stay cool and not let the compresser run as much)

second - a central air works well on a larger scale which meaning a full house, apartment, trailer homes..ect...when choosing a central air system you want to shop and compaire systems and efficiency as well as amps (the amount of current it draws) on a condenser unit it might display 2 diffrent amprage one might be with the condenseor pump running and the other might be just the fan...ideal would be low amprage and a high seer rating...

personaly i live in a single wide trailer home and i use two window units one on each side of the trailer...and it does just fine..but knowing a central air would cool the place ALOT quicker...

another thing to keep in mind..for better advice you might want to consult a HVAC mechanic

Answer 3

It depends. Air conditioning units have varying efficiency ratings.  Also depends how well the place being cooled is insulated (which determines how long the ac will be running). In theory, central air is more efficient and covers more room area because the units don't have the same size/space limitations as window units.

Look for products with energy star ratings and high SEER ratings as they are the most efficient models.