My sibling and family recently bought a home needing a bit of TLC. It's a basic colonial. The home is served by two systems - one in the basement for the first floor, one in the unconditioned attic serving the 2nd floor. The home will be moved into when some work inside in complete.
The basement system is a gas-fired boiler which heats a radiator of sorts in an air handler. Is this common in the northeast? Any pitfalls or benefits to it versus a furnace with an air handler? I've never seen such a system, but that doesn't mean much. The filter box is 1", lies horizontal under the blower motor. The boiler burner is Burnham, it vents directly outside through the wall. The pipes are all heavily corroded. The plenums are all corroded, too.
The attic system I didn't get a good look at other than the flex duct runs all over the place looking like a giant octopus and making the opportunity to finish the attic space much more challenging. It does not sit on a large drain pan. It provides A/C (when working). I think it also provides heat (considering there are no ducts along the bedroom baseboards, only ceiling ducts and supposedly the A/C was added at a later time). I haven't seen the system in action.
Both systems were installed in '93 and have received no maintenance at all. I don't have access to model numbers right now. Any general thoughts considering the age and brief visual descriptions? I believe solving the humidity issue in the basement should be a high priority - it will effect everything long term.