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Very Old Lennox Furnace

RayH Member Posts: 98
I have a customer with a 35 yr old Lennox OF7-340. I'm trying to service it for them until they can replace it. I can't find any info about it. It has a very old Carlin burner. Any help would be great. Thanks, Ray


  • icesailor
    icesailor Member Posts: 7,265
    Old Furnace:

    What are you trying to do as far as "service"?

    What model Carlin Burner is it?

    There aren't a lot of Warm Air Furnaces out there that had Carlin's as OEM's, usually Beckett, ABC or Wayne because Carlin's were hotter and could quickly burn through a chamber.