What gas is primarily used in residential heating applications in North America?

Natural gas is primarily used in residential heating applications in North America due to its availability, cost-effectiveness, and efficiency. It is delivered directly to homes through an extensive pipeline network, making it a convenient option for heating systems, water heaters, and cooking appliances. The infrastructure for natural gas is well established, which further supports its widespread use.

In comparison, while propane is also used in some residential heating applications, particularly in rural areas where natural gas lines may not be available, it is less common overall. Butane is used, but it is typically found in smaller applications such as portable heaters or fuels for lighters, rather than as a primary source of residential heating. Hydrogen is an emerging technology with potential applications in the future, but it is not currently a mainstream option for residential heating in North America. Thus, natural gas remains the dominant gas used for this purpose.