The answer to 'how much to replace heat exchanger local' is that the cost can vary significantly depending on several factors. As an expert HVAC technician, I can provide some guidance on the typical cost ranges and what influences the pricing.
The cost to replace a heat exchanger can range anywhere from $800 to $2,500 or more, depending on the size and complexity of your HVAC system, the brand and model of the heat exchanger, the labor costs in your local area, and whether any additional repairs or ductwork modifications are required. Larger, more complex systems or those with specialized heat exchangers will generally be on the higher end of that range.