For some odd reason, if I were to make Titanium into coal, that coal will instantly turn into fire. If I were to make Fireworks into fuse powder, that fuse powder will instantly burn. Why? I dont want fire and destruction, I just want to change the particle type for gods sake.
Elements like fuse and coal don't use the normal burning mechanism, and instead have a life-controlled burning process. Try setting the life to a higher value when changing the type
What firefreak11 said. Coal has to have Life: 110 and Tmp: 50 to exist without catching fire. Fuse has to have both Life and Tmp 50. Fuse powder only seems to need Life: 50.
When you change stuff with the console, just pause first, change it, set the tmp and life as needed, and unpause