1. What is BTU to CFH Conversion?

The BTU to CFH conversion calculates the natural gas flow rate (cubic feet per hour) required to produce a specific heat output (BTU per hour). This is essential for sizing gas lines and appliances.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• \( CFH \) — Cubic Feet per Hour (natural gas flow rate)
• \( BTU/h \) — British Thermal Units per Hour (heat output)
• \( 1025 \) — Conversion factor (BTU per cubic foot of natural gas)

Explanation: The formula divides the heat output by the energy content of natural gas (approximately 1025 BTU per cubic foot) to determine the required gas flow rate.

3. Importance of BTU to CFH Conversion

Details: Accurate conversion is crucial for proper sizing of gas lines, ensuring adequate fuel supply for heating appliances, and maintaining efficient and safe operation of gas-fired equipment.

4. Using the Calculator

Tips: Enter the BTU/h value (heat output) in the input field. The value must be greater than zero. The calculator will automatically compute the corresponding CFH (natural gas flow rate).

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 1025?
A: 1025 BTU per cubic foot is the standard energy content for natural gas, though it can vary slightly by region and gas composition.

Q2: What is CFH used for?
A: CFH (cubic feet per hour) measures natural gas flow rate and is used for sizing gas pipes, regulators, and meters for appliances.

Q3: Can this calculator be used for propane?
A: No, propane has a different energy content (approximately 2500 BTU per cubic foot). A different conversion factor would be needed.

Q4: What are typical CFH requirements?
A: Typical requirements range from 20-200 CFH for residential appliances, depending on the BTU rating of the equipment.

Q5: How accurate is this conversion?
A: The conversion is accurate for standard natural gas. For precise engineering applications, consult local gas utility specifications.