Thanks for the input! It would be in a office/bedroom that shares a wall with my living room. Plenty of space for a fish room but no plumbing. Louis' thread and the pictures above provide some great info. I have a 1950's house so all the rooms are small and the 180 seems to crowd out every room it's in. I was first planning to just put it in the office/bedroom, but an in-wall is so nice. I just have to get the nerve to do the constuction part of it. Thought I'd check to see if there were any pitfalls I should consider.