No, this fan won't cool your entire house during the summer months. It's a very basic, low-end fan - but it does provide substantial relief from the heat. I keep it on overnight in the bedroom which allows me to reduce reliance on the air conditioner. If it's pointed directly on you, you feel a huge difference. It won't drop temperatures too much on a room overall, but even if you aren't standing next to it, the air circulation is worth the price. I was able to get it for under $20 at a local store. I would definitely recommend this ultra-basic Lasko fan for anyone who wants to save money on the electric bill.