1. What is Cost Per BTU?

Cost Per BTU is a measure of energy efficiency that calculates the cost per British Thermal Unit (BTU) of energy. It helps compare the cost-effectiveness of different fuel sources and energy systems by standardizing costs to a common energy unit.

2. How Does the Calculator Work?

The calculator uses the Cost Per BTU formula:

Where:

• \( \text{Total Cost} \) — Total cost of fuel or electricity in dollars ($)
• \( \text{Total BTU} \) — Total energy input in British Thermal Units (BTU)

Explanation: This calculation provides a standardized way to compare energy costs across different fuel types and systems, allowing for informed decisions about energy efficiency and cost-effectiveness.

3. Importance of Cost Per BTU Calculation

Details: Calculating Cost Per BTU is essential for energy efficiency comparisons, fuel source selection, budgeting, and making informed decisions about heating, cooling, and energy systems. It helps identify the most cost-effective energy solutions.

4. Using the Calculator

Tips: Enter the total cost in dollars and total BTU value. Both values must be positive numbers. The calculator will compute the cost per BTU, which represents the dollar amount spent for each BTU of energy.

5. Frequently Asked Questions (FAQ)

Q1: What is a BTU?
A: A British Thermal Unit (BTU) is a unit of heat energy defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

Q2: Why is Cost Per BTU important?
A: It allows for direct comparison of energy costs across different fuel types (electricity, natural gas, propane, oil) by standardizing costs to a common energy unit.

Q3: How do I convert other energy units to BTU?
A: Common conversions: 1 kWh = 3,412 BTU, 1 therm = 100,000 BTU, 1 gallon of propane ≈ 91,000 BTU, 1 gallon of heating oil ≈ 138,500 BTU.

Q4: What is a good Cost Per BTU value?
A: Lower values indicate better cost efficiency. The ideal value depends on local energy prices and available fuel options in your area.

Q5: Can I use this for renewable energy systems?
A: Yes, Cost Per BTU can be calculated for any energy system including solar, geothermal, and biomass, though initial installation costs should be considered in long-term analysis.