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Furnace BTU Calculation Formula:
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Furnace BTU sizing determines the appropriate heating capacity required for a space based on square footage and climate factors. Proper sizing ensures efficient heating while avoiding energy waste in Alberta's cold climate conditions.
The calculator uses the Alberta furnace sizing formula:
Where:
Explanation: The formula accounts for Alberta's harsh winter conditions, with higher factors for poorly insulated homes and lower factors for well-insulated properties.
Details: Correct furnace sizing is crucial for energy efficiency, comfort, and system longevity. Oversized furnaces short-cycle, while undersized units struggle to maintain temperature in Alberta winters.
Tips: Enter total square footage of heated space and select appropriate climate factor based on your home's insulation quality. All values must be valid (square footage > 0).
Q1: Why use different climate factors for Alberta?
A: Alberta's extreme winter temperatures require specific sizing considerations. The 40-60 range accounts for varying insulation levels in the province's climate.
Q2: What is considered a well-insulated home?
A: Homes with R-50 attic insulation, R-20 wall insulation, energy-efficient windows, and proper air sealing qualify as well-insulated.
Q3: Should I consider other factors besides square footage?
A: Yes, ceiling height, window quality, number of exterior walls, and local microclimate can affect heating requirements.
Q4: What if my home has unusual features?
A: For homes with high ceilings, many windows, or sunrooms, consult with an HVAC professional for manual J calculation.
Q5: Is this calculator suitable for entire Alberta?
A: Yes, it covers general Alberta conditions, but extreme northern areas may require additional considerations.