Convert CFH to therms and BTU/h for natural gas using a typical heat content, or find CFH or run hours from therms; CCF and MCF work too.
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CFH To Therms Formula
The following equation is used to perform the CFH to Therms conversion.
- Where Therms represents the measured therms
- CFH stands for cubic feet per hour
- Hours is the duration in hours
To calculate the conversion, multiply the CFH by the number of hours and then divide by 100.
| CFH (cubic feet per hour) | Hours | Therms |
|---|---|---|
| 10 | 1 | 0.100 |
| 15 | 1 | 0.150 |
| 20 | 1 | 0.200 |
| 25 | 1 | 0.250 |
| 30 | 1 | 0.300 |
| 35 | 1 | 0.350 |
| 40 | 1 | 0.400 |
| 50 | 1 | 0.500 |
| 60 | 1 | 0.600 |
| 75 | 1 | 0.750 |
| 80 | 1 | 0.800 |
| 90 | 1 | 0.900 |
| 100 | 1 | 1.000 |
| 125 | 1 | 1.250 |
| 150 | 1 | 1.500 |
| 175 | 1 | 1.750 |
| 200 | 1 | 2.000 |
| 250 | 1 | 2.500 |
| 300 | 1 | 3.000 |
| 400 | 1 | 4.000 |
| Formula: Therms = (CFH × Hours) ÷ 100. Assumes 1 therm = 100 cubic feet (≈100,000 BTU). | ||
What is a CFH To Therms Calculator?
Definition:
The CFH to Therms Calculator is a tool that converts energy measurements by calculating the therms produced from a given CFH and operating duration, or by determining the missing value when two of the three variables are provided.
How to Calculate CFH To Therms?
Example Problem:
The following example outlines the steps needed to calculate the missing value.
First, determine the CFH. In this example, assume the CFH is 200.
Next, determine the number of hours. Here, the operation lasted 5 hours.
Finally, calculate the therms using the formula above:
Therms = (200 * 5) / 100
Therms = 1000 / 100
Therms = 10
FAQ
What does CFH stand for?
CFH stands for Cubic Feet per Hour, indicating the rate at which a substance such as gas or air flows.
How is the therm value calculated in this conversion?
The therm value is calculated using the formula: (CFH * Hours) / 100, which converts the flow rate over time into therms.
How do I find a missing value?
Choose what to calculate (therms, CFH or hours) and enter the other two values; the calculator solves for the missing one.
Is this conversion applicable to different fuel types?
The default uses 1,000 BTU per cubic foot (a factor of 100 cubic feet per therm). Choose the US average or enter a custom heat content for your gas, such as propane.
