Conversion Formula:
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The BTU to watts conversion is used to translate the cooling capacity of air conditioners (measured in British Thermal Units per hour) into electrical power consumption (measured in watts). This helps in understanding energy requirements and efficiency.
The calculator uses the conversion formula:
Where:
Explanation: The conversion factor comes from the relationship between thermal energy (BTU) and electrical energy (watt-hours).
Details: This conversion is essential for sizing electrical circuits, calculating energy costs, and comparing air conditioner efficiency (EER ratings).
Tips: Enter the BTU/hr rating from your air conditioner's specification plate. The value is typically between 5,000 BTU/hr (small window unit) to 36,000 BTU/hr (large central AC).
Q1: Why convert BTU/hr to watts?
A: To understand the electrical power requirements of cooling equipment and calculate operating costs.
Q2: Is this the same as EER?
A: No, EER (Energy Efficiency Ratio) is BTU/hr divided by watts, showing how much cooling you get per watt of power.
Q3: What's a typical conversion for a 10,000 BTU AC?
A: About 2,930 watts (10,000 ÷ 3.412 ≈ 2,930).
Q4: Does this account for startup surge?
A: No, this shows running watts only. Startup current may be 2-3 times higher briefly.
Q5: How accurate is this conversion?
A: Mathematically precise, but actual power draw may vary based on unit efficiency and operating conditions.