Btu To Cfh Calculator

BTU to CFH Formula:

\[ CFH = \frac{BTU/hr}{Heating\ Value} \]

CFH (Cubic Feet per Hour):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is BTU to CFH Conversion?

The BTU to CFH conversion calculates the cubic feet per hour (CFH) of gas flow required to produce a specific heat output in British Thermal Units per hour (BTU/hr), based on the heating value of the gas.

2. How Does the Calculator Work?

The calculator uses the BTU to CFH formula:

\[ CFH = \frac{BTU/hr}{Heating\ Value} \]

Where:

\( CFH \) — Cubic Feet per Hour (ft³/hr)
\( BTU/hr \) — British Thermal Units per hour
\( Heating\ Value \) — Energy content of gas (BTU/ft³)

Explanation: This formula converts heat energy requirements into the corresponding gas flow rate needed to achieve that heat output.

3. Importance of BTU to CFH Calculation

Details: This calculation is essential for sizing gas lines, selecting appropriate gas appliances, ensuring adequate gas supply for heating systems, and calculating fuel consumption rates.

4. Using the Calculator

Tips: Enter BTU/hr (heat output requirement) and Heating Value (energy content of the gas). For natural gas, the default heating value is typically 1000 BTU/ft³, but this can vary by region and gas composition.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical heating value for natural gas?
A: Natural gas typically has a heating value between 1000-1100 BTU/ft³, with 1000 BTU/ft³ being a common average for calculations.

Q2: How does this differ for propane?
A: Propane has a higher heating value of approximately 2500 BTU/ft³, so the same BTU output would require less propane volume compared to natural gas.

Q3: Why is CFH important for gas appliance sizing?
A: CFH determines the gas flow rate needed, which affects pipe sizing, regulator selection, and ensures appliances receive adequate fuel supply for proper operation.

Q4: Can this calculator be used for all gas types?
A: Yes, as long as you know the specific heating value of the gas being used. Different gases have different energy densities.

Q5: What factors affect heating value?
A: Gas composition, altitude, temperature, and pressure can all affect the actual heating value. Always consult local gas utility specifications for precise values.