Greeting all I just ordered a Kozyheat Z42 to replace my old Heatilator ZC from 1989. To be able to swing it cost wise I had to commit to doing the install myself. Got the old unit torn out yesterday and the new Z42 will be here in two weeks. Finally got to see inside the chase and see what Iâ€™m working with. Besides having to widen the rough opening by an inch I didnâ€™t have many concerns about what else I was getting into. The chase is a bit shallower than I expected; and I need to add about three inches of framing for the Z42 to sit properly. My current thought pattern is to frame it out with wood and then covering in brick to add a bit of texture to the wall. Iâ€™ve tackled a lot of projects but this is farther outside my comfort area than I am used too. So here are my questions: 1. Once I frame this out, I plan on covering the center section of the wall with thin brick (going for an urban/old Chicago look). I plan on having the brick section be floor to ceiling 72 inches wide and 96 inches tall. I have never worked with brick before and from my current plans am going to use Durock on top of the current drywall in that same floor to ceiling size. The extra depth isnâ€™t as much of a concern as we will be installing built in bookshelves on either side of the fireplace once this portion of the wall is completed. a. Am I okay with 1/2 inch Durock on top of drywall or can I go thinner? b. With so many thin brick options out there, what are the best brands to look at in terms of ease of use? Currently looking at the Owenboro line c. I canâ€™t wrap my mind around how the fireplace will sit flush with the bricks; most likely something I will understand when I see the unit but struggling right now. 2. I am hiring out the chimney install just on the labor; am currently in the process of getting the chimney pipe and supplies myself a. With the chimney going in a wood chase; I am buying a variety of sizes/parts for the 6 inch Supervent setup and will return the overbought supplies after install. i. Iâ€™ve ordered 2 firestops, 10 pieces of 3 foot chimney, 1 piece of 2 foot, and 1 piece of 1 foot, 1 chimney cap, a bunch of locking bands to secure the pieces, 1 base plate for the unit and chimney, 1 flashing piece for the chase. 1. My further question isâ€¦what am I missing? Itâ€™s going in a chimney chase with a flat top. Do I need wall supports, rafter radiation shield, or ceiling support? Itâ€™s a straight shot up without any bends. 3. Itâ€™s a 2 story house with an attic, I understand that I need 2 firestops within the chase; but the only other unknown I have is access to the second floor chase space and attic. I can stand up in the current chase hole and see to the first firestop; but how does the chimney sweep access the space in the chase of the second floor and then the attic portion between the firestops? Flying blind on this part and part of the reason I have had â€œhire someoneâ€ in my mind the whole time so far. What else am I not thinking about?