Boiler vs. Furnace: Which Heating System Fits You? Homeowners often compare two major options for forced-warmth: boilers , which heat water that flows through radiators or in-floor systems, and furnaces , which heat air and distribute it through ducts. Both can deliver efficient heating, but the “best” choice depends on how your home is built, what fuel you can access, and how you want your comfort to feel across the year. How each system works A boiler uses a burner (gas, oil, or sometimes electric) to heat water, then circulates it to emit heat via radiators, baseboard units, or hydronic floor loops. Because the system is moving warmed water, it can offer steady, even heat—particularly in homes that already support hydronic heating. A furnace warms air in a combustion chamber (typically gas or electric heat) and sends it through a duct network to registe ... Read more »
Ductless Mini-Split vs Central AC for Older Homes Ductless mini-splits and central air both cool homes, but older properties can make the “best” choice look very different. Homes built before modern insulation standards, with leaky ducts—or without ducts at all—often benefit from systems designed for room-by-room comfort. Below, we compare the two options with an older-home lens: retrofit feasibility, efficiency, comfort, and the tradeoffs homeowners typically weigh before signing a contract. 1) Retrofit reality: ducts (or the lack of them) Central AC relies on ductwork to move conditioned air throughout the house. In older homes, ducts may be undersized, poorly sealed, routed through unconditioned spaces, or simply not present in the way a new system would need. Fixing or replacing ducts can quickly erase the “lower system price” gap. Ductless mini-splits avoid most of that. They use an outdoor unit c ... Read more »