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CFH (Cubic Feet Per Hour) to BTU (British Thermal Unit) conversion calculates the energy output of natural gas appliances. Natural gas typically contains approximately 1037 BTU per cubic foot, making this conversion essential for sizing heating equipment and calculating energy consumption.
The calculator uses the conversion formula:
Where:
Explanation: This simple multiplication converts volumetric flow rate to energy output, assuming standard natural gas composition.
Details: Accurate BTU calculation is crucial for properly sizing heating systems, calculating fuel consumption, estimating operating costs, and ensuring efficient energy use in residential and commercial applications.
Tips: Enter the CFH value (cubic feet per hour) of natural gas consumption. The value must be greater than zero. The calculator will output the corresponding BTU per hour value.
Q1: Why use 1037 as the conversion factor?
A: 1037 BTU/cf is the standard average energy content for natural gas in many regions, though actual values can vary slightly (typically 1000-1100 BTU/cf) depending on the gas composition.
Q2: Can this calculator be used for propane or other gases?
A: No, this calculator is specifically for natural gas. Propane has a different energy content (approximately 2500 BTU/cf) and requires a different conversion factor.
Q3: How accurate is this conversion?
A: The conversion provides a good estimate for most applications. For precise calculations, consult your gas provider for the exact BTU content of your natural gas supply.
Q4: What are common applications for this conversion?
A: This conversion is used for sizing furnaces, water heaters, fireplaces, and other gas appliances, as well as calculating heating requirements and fuel consumption.
Q5: How does altitude affect the calculation?
A: At higher altitudes, the actual energy content per cubic foot decreases slightly due to lower atmospheric pressure, but for most practical purposes, the 1037 factor remains acceptable.