Quoted:
That's sort of low for an old boiler, I'd say a more typical LWT (leaving water temperature) would be around 140.
Newer style fin tube radiators? or the old style cast iron style?
Any under/in floor tubing? (that typically runs 120 or less)
But it all depends on the design of the system.
Worth having a Good service company check it out before the dead of winter, get a written quote from at least two firms.
Since it's your house now, might be worth paying a good firm to take you around and document the system, how to shut down the boiler - safely, where are the valves, zones, controls, etc so you know where and what to look for if you have problems. If possible get a hold of the old records for service and fuel usage.
Yes, fin-tube radiators in all rooms and hallways. The basement has a cast iron one.
No heated floors that I'm aware of
I had the whole thing checked by the home inspector before I bought the house. It may have been the only thing he actually did that I couldn't do myself as he had some specialized, expensive looking devices he checked the boiler with
I'm going to bump it to 140 and see what happens.
Speed