How many BTUs are contained in one gallon of #2 fuel oil?

One gallon of #2 fuel oil contains approximately 140,000 BTUs. This measurement is crucial for oil heat technicians as it helps them understand the energy content available for heating purposes. Knowing this value allows technicians to calculate the efficiency of heating systems, determine fuel consumption, and assess the overall heating needs of a building.

Within the context of heating calculations and system design, this figure supports more efficient energy management, ensuring that systems can be properly sized to deliver adequate heating while optimizing fuel use. Understanding the BTU content also aids in making cost analysis and comparisons to other fuel sources, enhancing decision-making when selecting fuel options for heating systems.