Hello, I am hoping that someone out there might be able to help me out with a venting question. I just replaced an Englander EP with a Castle Serenity. The venting thru the wall is currently about 16" from the floor, the exhaust outlet on the serenity is about 8". I'd like to avoid cutting a new hole in the wall but at the same time I really don't want to put the serenity up on an 8" hearth. Can I use a clean out T and a 90 to get up to the outside exhaust? Any ideas will be greatly appreciated. Thank you.