How Can BTUs and CFH Be Converted?

The energy required to raise the temperature of a pint of water by one degree Fahrenheit is measured in British thermal units, or BTUs. Natural gas has a temperature-changing capacity of one cubic foot, or CF, or 1000 BTUs. As a result, a natural gas flow of 1 CFH, or cubic feet per hour, provides roughly 1000 BTUs every hour.

There is no fixed ratio that converts volume to energy since the energy content of a natural gas depends on its composition. Therms are a unit of measurement that are included on bills for residential natural gas consumers.

100,000 BTUs make up one therm. MBTUs, the abbreviation for one million BTUs, are also occasionally used in the natural gas business to compare the energy content of various natural gas and fuels.

The typical American home used 193 cubic feet of natural gas per day in 2009. It is a useful energy efficiency test to compare the efficiency of heating oil and natural gas. If natural gas has a BTU density of 1025 per cubic foot and an annual use of 81,300 cubic feet equals 83,332,500 BTUs.

This can be compared to using 584 gallons of heating oil, which produces 80,994,496 BTU at a rate of 138,690 BTU per gallon. In this hypothetical situation, heating a home with natural gas is less effective than using heating oil. After calculating the cost of the power based on the total BTUs, the choice of fuel can be decided.

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