How do you know it's a 2009 model? According to the nameplate, the gas appliance was certified to the 1998 revision (which was issued as an addendum to the 1995 revision) of the gas safety standard, and afterwards the next version was in 2002. My guess is that your Wolf is newer than 1998, but older than 2002.I adjusted the orifice on the left connected to the larger silver flex pipe. I thought you kept one, and donated one to your church. My bad. I did spend many hours with razor blade, scotch pads, simple green (purple one), steel wool, and drill with wire wheel. I think this thing will look and run close to new when I am done. I found out today that it is a 2009 model.