I would love to buy local, i never did care for Munchkins, even the Dunkin's one.
I did have a Burnham boiler as a new install once. It gave out on the first winter. The boiler itself cracked. Since the builder gave me a 10 year HOW warrantee on the dwelling, the boiler was quickly replaced.
Today, you will be lucky to get a 1 year HOW warrantee from a local builder.