Help!

[procon]

6. You have a big house and that means a big unit

Is needed to properly manage heating and cooling and provide easy user controls. Units with high efficiency ratings also cost more up front, but cost less to operate month to month.You're going to have to pay a lot just to get the minimum you need, but it will be worth it in the end.

Brand names can add to the purchase price, but that's a good selling point. It's generally easier to get the big brands serviced when the offbrands don't have any certified technicians in your area.