This was a pretty straight forward job. The boiler that was there was a leaker, and we replaced it with a Burnham Independance. Notice the tank mounted next to the old boiler to supply extra water to the boiler. Our replacement was sized to the radiators and therefore didn't require this. We also built a low fire bypass on the gas train to the burner. This is a Trane vapor system so we wanted duel firing rates for the boiler.