Looking to purchase a new boiler, looked at hawkens, central, pro-fab the empyre. I tell ya its hard to figure which one to buy leaning towards the empyre with its stainless burn box. Talked to central boiler and they said that they'd void the warr. if they found out of someone burning junk mail or newspaper in there boxes. the emp. has a 25 yrs warr. on there stainless and classic only a 10 the hawkens seems pretty good also with a 20 yrs. warr. but as for performance they all claim there the best. burn times they all claim theres is longer. smoke lol thats another one they all claim to be darn near smokless . who knows can people with different boilers chime in on this or give me something else that i've missed when it comes to comparing these companys. Thanks Hoogie...