Well here is my new fireplace and I have to say, we are pretty impressed with the unit. Stove is very easy to light and holds a nice hot fire. This is a great unit for anyone looking for a high quality zero clearance fireplace. No super cold weather yet here but no rush for that. My chimney is straight up, mostly indoor and about 25 feet in length. I typically turn on the blower when the temp gauge reads 600, which is easy to accomplish with only a few splits.