The answer to 'furnace vs boiler' is that a furnace and a boiler are both heating systems, but they work in different ways. A furnace heats air and distributes it through ductwork, while a boiler heats water that is then circulated through pipes to radiators or radiant floor systems. Furnaces are generally less expensive to install but can have higher ongoing energy costs, while boilers tend to be more energy-efficient but have a higher upfront cost.
The best choice for your home depends on factors like the size and layout of your home, your local climate, your budget, and your energy efficiency goals. Furnaces are a good option for homes with existing ductwork, while boilers work well for homes with radiators or radiant floor heating. It's always best to consult with a professional HVAC technician to determine the right system for your specific needs.