Yeah, right. These factory reps are getting high on their own technology and they're screwing people without knowing it. They change the programming for the inducer blower to change the boiler input. That works well as long as the original control board is in the boiler. But when (not IF, but WHEN) the control board tanks and a guy puts a new one in, it's going back to the original rating, not the modified rating. That modification went away with the old board.
In days gone by, I did some factory work on the old HeatMakers. They were also multi-rated for different sizes and all one had to do was change the gas orifice and combusiton air disk. But once those were changed, the tag was also changed on the boiler and unless someone changed the orifice or disk, no matter what else on the boiler was changed, it would always be the new size. That's not the case when reprogramming a digital board. So much for progress.