Elevation for smoke effect?

[USAF-Falcon87]

Is there a way (using scripting, I am guessing) to change the elevation of the smoke effect? For instance, if I am building an oil field, I would like to have flame/smoke at the top of some of the structures, but with the stock effect the smoke originates at ground level (inside the building) instead of the top of a smokestack.

 

Is there a parameter somewhere I could adjust with code to make the smoke "hover" a given distance above the ground?

 

Thanks,

Ric