I was confused about the new SL5 until I had a chat with a support person at golite. The SL5 is identical in size to the old SL4 (90sf). The nest is different, and the door is a little different to interface with the new nest configuration, but that's it. If you're not using the nest, the SL5 is basically an SL4. FWIW, I wouldn't go more than 4 guys without a stove in one.
