Conversion Formula:
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The Watt to BTU/hr conversion is used to convert power measurements between the metric system (watts) and the imperial system (British Thermal Units per hour). This is particularly useful in heating, ventilation, and air conditioning (HVAC) applications.
The calculator uses the conversion formula:
Where:
Explanation: The conversion factor 3.412142 represents how many BTUs per hour are equivalent to 1 watt of power.
Details: Accurate power unit conversion is crucial for comparing equipment specifications, energy efficiency calculations, and system design in different measurement systems.
Tips: Enter power value in watts. The calculator will automatically compute the equivalent value in BTU/hr using the standard conversion factor.
Q1: Why is the conversion factor 3.412142?
A: This factor comes from the definition of BTU and watt - 1 watt equals 3.412142 BTU per hour based on the International Table BTU definition.
Q2: When is this conversion most commonly used?
A: Primarily in HVAC applications when comparing heating/cooling capacities between systems using different measurement units.
Q3: Is this conversion exact?
A: Yes, this is an exact conversion based on standard definitions, not an approximation.
Q4: Can I convert BTU/hr back to watts?
A: Yes, simply divide the BTU/hr value by 3.412142 to get watts.
Q5: Are there different types of BTU definitions?
A: Yes, but this calculator uses the most common International Table BTU (1 BTU = 1055.05585262 joules).