I use this product with the Jensen Deluxe log set. Three of these cans produce very realistic flames with a crackling sound similiar to real wood burning fires. It has a faint alcohol smell but this problem is easily solved by opening the fireplace flue. The fumes will go up the chimney provided you have a working fireplace, of course. In my experience, the cans burn really well for two hours and begin to fade and finally disappear after 2-1/2 hours.