The answer to the cost of a heat exchanger is that it can vary significantly depending on factors like the size of your HVAC system, the type of heat exchanger, and your location. As a general range, you can expect to pay anywhere from $500 to $2,000 or more for a new heat exchanger, including installation. The cost is influenced by the complexity of the repair, the materials used, and the labor required.
It's important to get quotes from local HVAC contractors, as they will be able to assess your specific system and provide an accurate estimate for the necessary repairs or replacement. Attempting to replace a heat exchanger yourself is not recommended, as it requires specialized knowledge and tools to ensure it's done safely and properly.