We live in a split-level home in Southern NH and have decided on the Harman Accentra insert. We'll be purchasing it next week and will install it on the main floor of our home, replacing a wood fireplace. I've gone back and forth with several local dealers on the purchase and install, and I've been most satisfied with the responses of one in particular. They have a competitive price and are adding in a free ton of pellets with any stove purchase. The only drawback is that they don't hang the liner. They suggest a 4" pipe. I've never done any sort of chimney work, but had planned on getting on the roof to clean both flues (we have a wood insert in the lower level). How hard is it to install the exhaust pipe at the same time? Is it something best left to pros? What price should I be looking for (both for the part & install service)? I'm pretty handy, but obviously don't want to put my family in danger. That said, if it's brainless and tough to screw up, I'll do it myself to save a few bucks. Thanks all! This is a great forum and I've learned a lot from your posts so far.