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CFH to BTU Conversion Formula:
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The CFH to BTU conversion calculates the British Thermal Units per hour from cubic feet per hour of natural gas flow. This conversion is essential for determining the heating capacity of gas appliances and systems.
The calculator uses the standard conversion formula:
Where:
Explanation: This formula assumes standard natural gas with approximately 1000 BTU per cubic foot. The actual energy content may vary slightly depending on gas composition.
Details: Accurate BTU calculation is crucial for sizing heating systems, determining fuel consumption, calculating operating costs, and ensuring proper appliance performance and efficiency.
Tips: Enter the cubic feet per hour (CFH) value. The value must be greater than 0. The calculator will automatically compute the BTU per hour output for natural gas applications.
Q1: Why is the conversion factor 1000?
A: Standard natural gas contains approximately 1000 BTU per cubic foot, making this the standard conversion factor for most residential and commercial applications.
Q2: Does this conversion work for all types of gas?
A: This conversion is specifically for natural gas. Propane and other gases have different energy densities and require different conversion factors.
Q3: How accurate is this conversion?
A: For standard natural gas, this conversion is highly accurate. However, gas composition can vary slightly by region, which may affect the exact BTU content.
Q4: What are typical CFH values for household appliances?
A: Typical values range from 15-40 CFH for furnaces, 15-25 CFH for water heaters, and 5-15 CFH for stoves and ovens.
Q5: Can I use this for propane conversion?
A: No, propane has approximately 2500 BTU per cubic foot, so you would need to use a different conversion factor (CFH × 2500).