Double Furnace In Your Home? DIY Air Filter Basics

Some homes, especially two-story houses, may have two furnaces to address the challenges of effectively heating and cooling a multi-level living space. Two-story homes often experience temperature variations between the upper and lower levels due to the natural tendency of warm air to rise. By having two furnaces—one dedicated to each floor—homeowners can achieve more precise temperature control and ensure even distribution of warmth throughout the house. This setup allows them to optimize energy efficiency and comfort, ensuring that each level maintains its desired temperature without overworking a single furnace and potentially leading to more balanced heating and lower utility costs.

In this video, Master Plumber William Frew shares tips for homeowners with double furnaces.