What characterizes glowing combustion?

Glowing combustion is characterized by high temperatures where materials, particularly solid fuels, undergo the process of pyrolysis. During this phase, the fuel does not ignite like in flaming combustion, but rather emits a significant amount of heat that can result in a glowing mass of combustible material. The high temperatures associated with glowing combustion allow for the release of volatile gases from the solid fuel, which can later ignite when exposed to a sufficient heat source or flame.

In contrast to this, production of significant smoke typically points to incomplete combustion, which is not a hallmark of glowing combustion. A reduction in temperature does not apply, as glowing combustion is associated with sustained high heat. Increased ignition potential is more relevant to flaming combustion rather than glowing combustion, as the latter primarily involves the heat from the glowing material itself rather than an increased likelihood of ignition in the surrounding environment. Thus, the defining feature of glowing combustion is indeed the high temperatures accompanied by the presence of pyrolizing fuels, which generate heat without creating flames.