We did a very small first burn in our new Jotul the other night. The fan came on after a bit and it took me a few minutes to realize the fan was even running. It was SO quiet. At first I just barely noticed there was a fan running SOMEWHERE. I thought it was the computer at first. After awhile I realized it was the Jotul running on low. I set the switch to high and it was a little louder, but not much. I think we're going to like this insert.