The answer to 'how much to replace furnace in Chicago' is that the cost to replace a furnace in Chicago can vary significantly, typically ranging from $3,000 to $10,000 or more. The exact cost will depend on several factors, including the size and efficiency of the new furnace, the complexity of the installation, and any necessary ductwork or electrical upgrades.
Homeowners should expect to pay more for higher-efficiency models, larger homes, or if the existing system requires significant modifications. It's important to get multiple quotes from local HVAC contractors to compare options and find the best value for your home.