It is not combustible, but it may burn many other materials
when the the house are burning the fire move faster because of the combustible materials
Example sentence - The combustible materials made the fire burn hotter.
You should refrain from putting electric heaters near combustible materials because heat emitted from the heater is capable of causing the combustible material to blow up or catch fire.
It is not combustible like some materials, but it can catch afire which is why many shops have separate shop vacs for titanium dust/chips.
self heating or pyrophoric materials
There are some simple requirments for something to be a convenient fuel - it must be abundant, easily collected and transported, cheap and ideally have a high calorific value per unit volume. Actually the question asked is wrong. Combustible subs. = Combustible materials all combustible subs./combustible materials are fuel but all fuel are not combustible subs/combustible material because fuel can also be an incombustible material/incombustible subs.
Most metals are considered non-combustible. In addition refractory and other oxides such as magnesium oxide, titanium dioxide, Zirconium oxide and materials such as cement, concrete, clays, soils, sand and ceramics are all non-combustible. There are many other substances too.
The answer is yes. The reason is that fragrance oils are combustible materials or flammable materials,
self-heating or pyrophoric materials
An A- ordinary combustible materials, such as burning paper or wood.
Air quality and combustible materials.