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Furnace BTU Calculation Formula:
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The Furnace BTU Calculator estimates the required heating capacity for residential spaces in Ontario's cold climate. It uses a standard calculation factor that accounts for the region's specific heating requirements and climate conditions.
The calculator uses the Ontario furnace sizing formula:
Where:
Explanation: The formula accounts for Ontario's specific heating requirements, including insulation standards, average winter temperatures, and building codes in the region.
Details: Correct furnace sizing is crucial for energy efficiency, comfort, and system longevity. An oversized furnace will short-cycle, reducing efficiency and comfort, while an undersized unit will struggle to maintain temperature during extreme cold.
Tips: Enter the total heated area in square feet. For multi-story homes, calculate each floor separately and sum the results. Consider additional factors like ceiling height, window quality, and insulation levels for more precise sizing.
Q1: Why use 50 BTU per square foot for Ontario?
A: This factor accounts for Ontario's cold climate, with average winter temperatures requiring higher heating capacity compared to milder regions.
Q2: What are typical BTU requirements for Ontario homes?
A: A 1,500 sq ft home typically requires 75,000 BTU, while a 2,000 sq ft home needs approximately 100,000 BTU capacity.
Q3: Should I consider other factors besides square footage?
A: Yes, consider ceiling height, window efficiency, insulation quality, and number of exterior walls for more accurate sizing.
Q4: Is this calculation suitable for all home types?
A: This provides a general estimate. Older homes with poor insulation or homes with high ceilings may require professional Manual J calculation.
Q5: What about high-efficiency furnaces?
A: High-efficiency models may have different sizing considerations. Always consult with a qualified HVAC professional for final furnace selection.