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# Heating Fuels - Cost Comparing

Average cost comparison formulas for heating fuels:

### Electricity

C e = p e (100000 Btu) / (3412 Btu/ kWh )                  (1)

where

C e = electricity cost per 100000 Btu

p e = electricity price per kWh

### Natural Gas

C ng = p ng (100000 Btu) / (1028 Btu/ft 3 )                 (2)

where

C ng = natural gas cost per 100000 Btu

p ng = natural gas price per cubic ft.

### Propane LP Gas (Liquid Propane Gas)

C lp = p lp (100000 Btu) / (91333 Btu/ gallon )                  (3)

where

C lp = propane gas cost per 100000 Btu

p lp = propane price per gallon

### Fuel Oil

C fo = p fo (100000 Btu) / (140000 Btu/ gallon )                (4)

where

C fo = fuel oil cost per 100000 Btu

p fo = fuel oil price per gallon

## Related Topics

### • Combustion

Boiler house topics, fuels like oil, gas, coal, wood - chimneys, safety valves, tanks - combustion efficiency.

## Related Documents

### Combustion Efficiency and Excess Air

Optimizing boilers efficiency is important to minimize fuel consumption and unwanted excess to the environment.

### Combustion of Fuels - Carbon Dioxide Emission

Environmental emission of carbon dioxide CO2 when combustion fuels like coal, oil, natural gas, LPG and bio energy.

### Fossil vs. Alternative Fuels - Energy Content

Net (low) and gross (high) energy content in fossil and alternative fuels.

### Fuel Gases - Combustion Values

Combustion values for fuel gases like natural gas, propane and butane - Btu per cubic feet.

### Fuel Oil Combustion Values

Combustion values in Btu/gal for fuel oils No.1 to No.6.

### Fuels - Combustion Air and Flue Gases

Combustion air and flue gas for common fuels - coke, oil, wood, natural gas and more.

### Fuels and Chemicals - Autoignition Temperatures

Autoignition points for fuels and chemicals like butane, coke, hydrogen, petroleum and more.

### Nitrogen Oxides (NOx) Emission from Fuels

Emission of Nitrogen Oxides - NOx - with combustion of fuels like oil, coal, propane and more.

### Optimal Combustion Processes - Fuel vs. Excess Air

Stable and efficient combustion requires correct mixture of fuels and oxygen.

### Stoichiometric Combustion

Stoichiometric combustion and excess air.

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