We need to replace our 30 yr old Peerless. I read some general discussions on this, but would like to ask for some opinions. We live in Connecticut, 3300 sq ft house, built in late 1960s. We recently had a Crown indirect installed, and learned that the boiler needs to be replaced. I'd like to know what is the best way to go; Buderous, Burnham MPO, Biasi or Veissmann. Thinking that the horizontial 3 pass systems is the way to go, but is one better than than the others and why? Thanks in advance for your help.