1950 house, 10 yr old h2o tank, can there be a 90 degree elbow in the vent line? line goes up 12" with a 90 then 8" into a larger vent up to roof.
problem is that the pilot light goes out? new gas valve, new thermocouple. only change is an upper combustion air vent was added!
thanx cris
insp123@cox.net