In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
FLAME BURNING IN BURNER TUBE
The boiler is a Utica MGB series for hydronic heating and is burning natural gas , never converted to LP . I also cleaned between the sections of the boiler and burner tubes . I checked the orifices on the manifold and they were clean to . Checking from the draft hood built into the boiler jacket the chimney is pulling fine . The burner chamber doesnt vent all that well but the sections are clear as well as everything else . Could i adjust the gas valve to compensate for LP added to the natural gas mains ? and if so would that eliminate combustion inside the burner tubes . The gas valve is a honeywell vr8300 24v with standing pilot .