I have a Heatilator EM-415 and I checked the manual and it appeared to have plenty of room, but when I started taking off the doors, etc it looked small. Got out the tape measure and the wood stove is not going to fit with the ceramic plates in the old fireplace. Can I take those out? I figure I could, but wanted to make sure before I did. I am sure I will have more questions, but I need to figure this out first.