I-Home improvement

[Quasi]

Susie, it all depends on what you are trying to do.

As BullNBear stated it will use more electricity if left in the on position.

However in my case I do leave it on for both the heating and cooling seasons. I have a multi-speed fan so its set to be on low speed all the time and switches to a higher speed if heat or cooling comes on. I do this for a couple of reasons.

1- Noise, It is quite noticeable when the fan comes at high speed, especially when sleeping and the house is very quite. By leaving the fan running there is always a slight background white noise so you don't notice the system starting and stopping.

2- Stratification, I live in a 3 story house so hot or cold air will rise of fall, thus by leaving the fan running on low it keeps the whole house mixed up and at a more even temperature. I also have 9 foot ceilings so you can also get stratification within just one room.

I my case the extra cost of running the fan continuously is just part the comfort solution.

Quasi