Dan, that's an excellent idea, thanks for taking the time to draw that out for me.

Next time I'm up, I'm going to take some measurements. I know that there is enough room to build an enclosure behind the cabinet and leave breathing room on the sides, I just have to make sure that there's enough room to access the furnace easily.

Thanks again for the input, guys.

The only reasonable argument for owning a gun is to protect yourself from the police.