Furnace Installation Cost Calculator Home Tools Furnace Installation Cost Calculator Furnace Installation Cost Calculator Home Size (sqft): Fuel Type: Natural Gas Oil Electric Furnace Efficiency: Standard (80% AFUE) High Efficiency (95%+ AFUE) Installation Complexity: Simple Moderate Complex Existing Ductwork: Yes No (New duct installation required) Location Type: Urban Suburban Rural Calculate Reset For a more accurate calculation of the cost, contact us and get a free estimate. Call for a Free Estimate Schedule an appointment a Free Estimate