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Costs for purchasing and installing a high-efficiency boiler system can vary significantly based on the size of your home, the type, make and model of boiler selected, as well as design and installation considerations. Installing an in-floor heating system is typically more expensive than installing radiators. Be sure to get multiple quotes from contractors to compare costs, installation approach and warranties.

Did you see a building science or energy efficiency term you did not understand? Check out our glossary.