Keyframing start and end of smoke simulation Can anyone help me with quick smoke?
I am still very new to blender and I am confused on how I can key frame quick smoke to start at a certain frame with the explosion I have set up.
If you are using the mesh as the flow source,  then animate the Density of the Flow object.

Hover over the field and press I to add a keyframe. Or RMB  on the field and choose Insert Keyframe.
If you are using a emitter particle system, then use the start and end time of the particle system.