Gas Fitter Practice Test 2026 – The All-in-One Guide to Mastering Your Certification!

A US gallon of oil contains approximately 140,000 BTUs (British Thermal Units). This measurement is crucial for understanding the energy content of heating oils, as it allows gas fitters and other professionals in the HVAC and energy sectors to calculate the efficiency and energy requirements for heating systems accurately. Knowing the BTU content helps in designing systems that optimize energy use, ensuring that the equipment performs effectively while providing the desired level of heating.

In contrast, other options present figures that do not reflect the accepted energy content of a US gallon of oil, which could lead to improper calculations and inefficiencies in heating applications. Understanding the correct BTU value is essential for effective energy management and system design.