What is the most common fuel source for residential heating systems?

Natural gas is the most common fuel source for residential heating systems primarily because it is cost-effective, efficient, and readily available in many areas. Many homes are connected to a natural gas supply line, which allows for easy access to this energy source. Additionally, natural gas heating systems tend to have a lower operational cost compared to other fuels, making them an economical choice for homeowners.

Natural gas furnaces are designed to provide consistent and reliable heating. They also tend to have higher energy efficiency ratings, which contributes to lower energy bills. Furthermore, the infrastructure for natural gas is well-established in many regions, enabling widespread usage for both heating and cooking.

In comparison, while electricity is a common heating source, it can be more expensive and less efficient than natural gas. Propane is used in areas without natural gas service but is still less common overall. Oil heating systems, while still present in some homes, are increasingly being replaced by more efficient natural gas systems due to cost and environmental concerns. Consequently, natural gas remains the primary choice for residential heating in many markets.