Ok really stupid question here. Which one is the furnace filter. I've been changing the one's in the house every month. Is there another that I'm supposed to be checking?

Do you have a heat pump/air cond. setup? If so my unit has 1 huge filter, (HEPA, pollen...whatever) Filter costs about 45 dollars evey six months. Keeps the dust down in the house also.:p

I had this conversation with an energy rep from Florida Power a few years back, and he agreed with me that your A/C has to work alot harder to cool your house back down instead of just maintaining a current temp. Anytime you are working your A./C hard you are using more power costing you more money and maintenance for your unit. I would just kick the t-stat up 5 or 10 degrees when you are not home. Wardey

I've got the Trane two stage blowers. My fan stays on constantly, circulating the air and the compressors only come on every once in a while as the temp rises during the day. My t-stats are programmed to let the temp rise through the day and cool back down by evening (during the week) and I keep it nice and cool on the weekends. BTW, running the fan constantly is like running a 100 watt light bulb. This does not burn much energy. My Electric bills are much less since switching the units this year.