Cost Per BTU Formula:
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Cost Per BTU calculation helps determine the efficiency and cost-effectiveness of different heating fuels by comparing their price per unit of energy (BTU). This allows for informed decisions when choosing between various heating options.
The calculator uses a simple formula:
Where:
Explanation: This calculation provides a standardized way to compare different fuels regardless of their measurement units (gallons, cubic feet, etc.).
Details: Calculating cost per BTU is essential for making informed decisions about heating options, budgeting for heating expenses, and comparing the efficiency of different fuel sources.
Tips: Enter the price of the fuel in dollars and the BTU content of that fuel. Both values must be positive numbers. The calculator will determine the cost per BTU.
Q1: What is a BTU?
A: A BTU (British Thermal Unit) is a unit of heat energy. It represents the amount of energy needed to heat one pound of water by one degree Fahrenheit.
Q2: Why calculate cost per BTU?
A: Calculating cost per BTU allows for fair comparison between different heating fuels that are sold in different units and have different energy densities.
Q3: What are typical BTU contents for common fuels?
A: Natural gas: ~1,030 BTU/cubic foot; Propane: ~91,500 BTU/gallon; Heating oil: ~138,500 BTU/gallon; Electricity: 3,412 BTU/kWh.
Q4: Does this account for appliance efficiency?
A: No, this calculation only compares fuel costs. Actual heating costs will also depend on the efficiency of your heating system.
Q5: Should I only consider cost per BTU when choosing fuel?
A: While important, also consider availability, storage requirements, environmental impact, and equipment costs when choosing a heating fuel.