The answer to 'which is better furnace or boiler' is that both furnaces and boilers have their own advantages, and the 'better' option depends on your specific home heating needs and preferences. Furnaces use forced air to distribute heat through ductwork, while boilers circulate hot water or steam through pipes to provide radiant heat.
Furnaces are generally less expensive to install and maintain than boilers, and they can heat a home more quickly. They are a good choice for homes with existing ductwork. Boilers, on the other hand, provide more even, comfortable heat and can be a good option for homes without ductwork. Boilers also tend to last longer than furnaces. Ultimately, the 'better' choice will depend on factors like the size and layout of your home, your budget, and your personal heating preferences.