Purchased a Regency I2400 and finished installing this morning. Had fun connecting the flex liner (a lot of foul language from my brother and I). Never worked with liners before and don't really wish to again, I like the twist and lock feature of stove pipe! Anyways had the first small fire afterwards and was happy to see no smoke in the house! A little hard to get going at first (had to keep the door cracked open a little), but got going pretty good. Got the temp up to around 250 degrees.