I installed a Seton W-100 boiler last year, and absolutely loved the way it functioned. However, as I have discovered, the draft control was not sealing off completely, and the fire never shut down completely. When running it early this season, it was off more than it was on, and was going over 48 hours on a load. Consequently, all that smoldering built up creosote in the fiberglass insulation, and ignited – melting the galvanized skin! Has anyone had any experience with this? Are there any Seton owners out there that have had their boiler running for more than year? Any information would be appreciated. Thanks.