Handsome work, guys. but let's be straight, the old boiler was "serviceable". It might have been "40yrs old" but that Beckett burner wasn't original, it had definitely been replaced within that period of time, and i doubt many of the other serviceable bolt-ons like exp tank, flue pipe, relief valves, etc, were original. The Biasi is more efficient than the old unit, no question. That old boiler had a DHW coil in it, which are def inferior, but it can be negated and an indirect used instead. Nonetheless, nice clean work here.