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Gas Furnace Cost Formula:
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The Gas Furnace Cost Calculator estimates the total cost of a gas furnace installation based on the furnace size, price per kBTU, and installation costs. This helps homeowners and contractors budget for heating system installations.
The calculator uses the formula:
Where:
Explanation: The calculation multiplies the furnace size by the price per kBTU to get the base equipment cost, then adds the installation cost to determine the total project cost.
Details: Accurate cost estimation is essential for budgeting home improvement projects, comparing quotes from different contractors, and determining the return on investment for energy-efficient furnace upgrades.
Tips: Enter the furnace size in kBTU (typically between 40-150 kBTU for residential applications), the price per kBTU (usually $20-100/kBTU depending on efficiency and features), and the installation cost ($1,000-5,000+ depending on complexity).
Q1: What factors affect furnace pricing?
A: Efficiency rating (AFUE), brand reputation, features (two-stage, variable speed), and regional market conditions all impact furnace costs.
Q2: How do I determine the right size furnace?
A: A professional Manual J calculation considers home size, insulation, windows, and climate. Oversized or undersized furnaces operate inefficiently.
Q3: Are there additional costs beyond equipment and installation?
A: Yes, potential additional costs include ductwork modifications, electrical upgrades, permits, and disposal of old equipment.
Q4: What's the typical price range for a new gas furnace?
A: Most residential systems cost $2,500-7,500 installed, with high-efficiency models reaching $10,000+.
Q5: How long do gas furnaces typically last?
A: With proper maintenance, most gas furnaces last 15-20 years. Higher efficiency models may have longer warranties.