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kW to BTU/h Conversion Formula:
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The kilowatt to BTU per hour conversion is used to convert electrical power measurements (kilowatts) to thermal power measurements (British Thermal Units per hour). This conversion is particularly important in HVAC systems, heating equipment, and energy efficiency calculations.
The calculator uses the conversion formula:
Where:
Explanation: This conversion factor is derived from the relationship between electrical power and thermal energy equivalent, where 1 kilowatt-hour equals 3412.142 BTU.
Details: Accurate power unit conversion is essential for engineers, HVAC technicians, and energy professionals who need to compare electrical power consumption with thermal output requirements, especially in heating and cooling system design and energy efficiency analysis.
Tips: Enter the power value in kilowatts (kW). The value must be a non-negative number. The calculator will automatically compute the equivalent BTU per hour value.
Q1: Why is the conversion factor 3412.142?
A: This factor comes from the definition of BTU and kilowatt-hour. 1 kWh = 3412.142 BTU, so 1 kW = 3412.142 BTU/h.
Q2: When would I need to convert kW to BTU/h?
A: This conversion is commonly used in HVAC system sizing, electric heater specifications, and when comparing electrical power consumption with thermal energy requirements.
Q3: Is this conversion exact?
A: The conversion factor 3412.142 is a standard accepted value, though some references may use slightly rounded values like 3412 for simplicity in rough calculations.
Q4: Can I convert BTU/h back to kW?
A: Yes, to convert BTU/h to kW, divide the BTU/h value by 3412.142 (kW = BTU/h ÷ 3412.142).
Q5: What's the difference between BTU and BTU/h?
A: BTU is a unit of energy, while BTU/h is a unit of power (energy per time). 1 BTU/h represents the power needed to produce 1 BTU of energy in 1 hour.