Actually the gas fireplace was just installed in Nov, to replace the small one that was installed by the builder. This is the Lennox LSS-40, has a 41k BTU capacity and is 73% efficent, had a chance to get it at dealer cost, and I did the removal of the old one, and installed this one. Did not finish the drywall as I knew I would be removeing it for running new speaker wire. But ya, need to get back to that and several other house projects...........some day........right after I tire of the HT system.