What is a characteristic of a direct ignition furnace?

A direct ignition furnace is designed to enhance efficiency and reliability by employing an electronic igniter that lights the main burners directly. This system eliminates the need for a standing pilot light, which is a common feature in older furnace designs. Instead of maintaining a constantly burning pilot light, the direct ignition method ignites the gas only when there's a call for heat, allowing for more precise control of fuel consumption and increasing overall efficiency.

This characteristic also means that there is typically no need for a manual ignitor, as the electronic component automates the ignition process. Additionally, while some systems can have delayed ignition features, it is not a defining characteristic of a direct ignition furnace. The prominence of the electronic ignition mechanism underscores how modern gas furnaces are designed to operate efficiently and effectively while prioritizing user convenience and safety.