Boilers heat water and distribute it through pipes; furnaces heat air and distribute it through ducts. If your home has baseboard radiators or radiant floors, you have a boiler system. If you have vents in the floor or ceiling, you have forced air.
Boiler systems are generally quieter, produce more even heat, and don't circulate dust or allergens. They can't provide central air conditioning without a separate system. Forced-air systems can handle both heating and cooling through the same ductwork.
Replacing a boiler with a furnace requires installing ductwork throughout the home — a major renovation. Most homeowners with existing boiler systems replace like-for-like. DMES LLC specializes in boiler replacement and can help you evaluate your options.
If your boiler is over 20 years old or showing signs of failure (leaks, uneven heat, frequent cycling), a high-efficiency replacement is worth evaluating. Modern condensing boilers pay back the efficiency premium in fuel savings over time.
Information provided is general guidance for homeowners. Every home is different — contact DMES LLC for advice specific to your situation.