It's been 90 degrees daily for the last month, and I still put the fireplace on in the evening. I can't say how impressed I have been with this purchase. The price was good, it fits perfectly, and it's a great alternative to me, rather than having gas reconnected to my fireplace, purchasing a new insert, etc. It looks like a real fireplace. Very pleased with this purchase. I received it quickly, and it was packed incredibly well. Two thumbs up, Electric Fireplaces Direct!!