It turns out the oil-burning colossus in the ... hydronic baseboard heaters — relies on hot water or steam from a boiler, not heated air from a furnace. The house where I live now has a boiler ...

The object) aimed at in the improvements, is to obtain as much caloric as possible from the furnace ... air passes, and by fixing outside the same air chambers or drums, through which the hot ...

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the ...