When we bought our house, oh 'bout 10 years ago, it came with a Washington Stove Works (Olympic Model) non EPA certified wood burning insert. I am not sure how old it is, but from what i can tell, the company went out of business in the early '80's either just prior to or because of the new EPA requirements. Anyway, we have used it when no burn bans were in place and it was fine for years. Last year, smoke occasionally backed into the house, indicating to me a need to clean things up a bit. Of course, there is no liner in the chimney either, though the chimney does appear to be OK. Not sure why the smoke started coming in. On to my question. Is it possible to make one of these old behemoths up to code and put in a chimney liner to boot? Waste of time and money? Would the end result be as clean and green as some the new models? Should I just search out a replacement? I haven't burned in about a year because of the smoke and smell and i do miss it. Plus, as I have indicated, we have loads of free wood with no end in sight because hubby is an arborist. I can no longer stand looking at a big pile of free heat.