Model Explosions
Model explosions is a delicate part of pyrotechnics and one of the hardest to pull off successfully.
Sometimes it's just not feasable to "explode" an whole building in a flaming inferno, either because of budget restrictions or physical limitations. There are many solutions, but one could be model explosions. Compared to regular pyrotehcnics, model pyro has several problems which one allways must take into account, such as framing, materials used for the model and the use of visual effects, but if these things are taken care of, the end result can be spectacular and breathtaking.