First off, I just want to thank everyone who contributes to this site. I would never have been able to do this without all the info here. Now to the pics. First off, this is a basement install in our family/tv room into a 21 ft. interior masonry chimney with clay tile liner. My basement is finished, but the half the insert sits in is poorly insulated. This summer I had my chimney swept and inspected and was told by the sweep that I'd have no problem installing an insert. My firebox dimensions left me with the ability to install a medium sized insert. I talked to several shops/installers. I narrowed my choice down to the Pacific Energy Super, Regency I2400, and the Lopi 1750i. I had a Lopi installer at the house who tried to talk me out of a wood burner and into a ventless gas log setup. My I.D. of my flue is 6.5x10.5. He said I would have ovalize to get it down and that it might not work. I honestly think he was afraid to go up on my clay tile roof. Every installer said a block off plate was unnecessary, although a couple said they would do it. I decided after reading some of BrotherBart's (THANKS) posts on a 5.5 liner. I decided that this is would be the route that I would choose and decided to do a self install. I decided to go with the Super insert and began calling around for prices. I called a shop that told me they weren't stocking PE anymore and had switched to Enviro. They were still able to sell and service PE products though. I decided to take a look at the Enviro and liked the low height and the E-Z flue connector that made the flue connection very simple from inside the stove. First, the before pic. I'll break this up into several posts.