The answer to 'boiler vs' is that boilers and furnaces are both common heating systems used in homes, but they have some key differences. Boilers use hot water or steam to heat a home, while furnaces use warm air. Boilers are generally more energy-efficient and have lower operating costs, but they can be more expensive to install. Furnaces are often less costly to install, but they may have higher energy bills.
Boilers are a good choice for homes with radiators or baseboard heating, as they provide even, comfortable heat throughout the home. Furnaces work well in homes with ductwork, as they can distribute warm air through vents. The best option for your home will depend on factors like your home's size, layout, and existing heating system.