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BTU Calculation Formula:
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The CFH to BTU conversion calculates the heating capacity of propane gas by converting cubic feet per hour (CFH) flow rate to British Thermal Units per hour (BTU/h). This conversion is essential for sizing propane appliances and heating systems.
The calculator uses the conversion formula:
Where:
Explanation: Propane has a heating value of approximately 2520 BTU per cubic foot. This conversion factor allows you to determine the energy output based on gas flow rate.
Details: Accurate BTU calculation is crucial for proper sizing of propane heating systems, ensuring efficient operation, preventing under-sizing or over-sizing of equipment, and maintaining safety standards.
Tips: Enter the CFH (cubic feet per hour) value of propane flow. The value must be greater than zero. The calculator will automatically compute the corresponding BTU output.
Q1: Why is 2520 used as the conversion factor?
A: 2520 BTU/ft³ is the standard heating value for propane gas, representing the amount of energy released when one cubic foot of propane is completely burned.
Q2: What is a typical CFH range for residential propane appliances?
A: Typical ranges vary by appliance: water heaters (20-40 CFH), furnaces (50-150 CFH), stoves (15-30 CFH), depending on size and efficiency.
Q3: How does altitude affect BTU calculation?
A: At higher altitudes, air density decreases, which may require adjustments to the calculation. Consult local propane professionals for altitude-specific conversions.
Q4: Can this calculator be used for natural gas?
A: No, natural gas has a different heating value (approximately 1000-1100 BTU/ft³). Use a specific natural gas calculator for accurate conversions.
Q5: Why is accurate BTU calculation important for system sizing?
A: Proper BTU calculation ensures your heating system meets your space's heating requirements efficiently, prevents energy waste, and maintains safe operation conditions.