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Conversion Formula:
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The Watts to BTU conversion calculates the heating power output in British Thermal Units per hour (BTU/h) from electrical power input in watts (W). This conversion is essential for understanding the heating capacity of electrical devices and systems.
The calculator uses the conversion formula:
Where:
Explanation: The conversion factor 3.412 represents the number of BTUs produced per hour by one watt of electrical power, based on the relationship between electrical energy and heat energy.
Details: Accurate conversion between watts and BTU/h is crucial for HVAC system design, electrical heating equipment selection, energy efficiency calculations, and comparing different heating technologies.
Tips: Enter the electrical power in watts. The value must be positive and valid. The calculator will instantly convert it to BTU per hour using the standard conversion factor.
Q1: What is the difference between watts and BTU/h?
A: Watts measure electrical power, while BTU/h measures heating rate. This conversion helps relate electrical input to thermal output.
Q2: Why is the conversion factor 3.412?
A: This factor comes from the definition of BTU (the amount of heat required to raise 1 pound of water by 1°F) and the relationship between electrical energy and heat energy.
Q3: Can this conversion be used for all electrical devices?
A: This conversion assumes 100% efficiency in converting electrical energy to heat energy. For devices with different efficiencies, the actual BTU output may vary.
Q4: What are typical wattage values for common appliances?
A: Space heaters: 750-1500W, Electric water heaters: 3000-5500W, Hair dryers: 1200-1875W. Convert these to BTU/h to understand heating capacity.
Q5: Is this conversion reversible?
A: Yes, to convert BTU/h to watts, divide by 3.412: \( W = BTU/h \div 3.412 \).