Furnace 101 needed
We have an old Maine Cape with a dirt floored, damp basement which houses an older New Yorker HWBB furnace. Our last service tested it at 86% efficiency.
How do we determine when it is time to replace it? We recently learned our town will get natural gas in about 3 years. Should we consider changing to a gas boiler? Propane? Direct vent gas heaters?
We currently don't have any heat on the second floor, and are OK with that, but do we consider adding heat when time to replace?
As you can see, we have a lot to consider. What I am hoping for are some suggestions for places to research this topic. Thanks!