How to Make Smoke Thicker in Cycles Render 2.79 verison?

Support Modeling
1

Hello guys, may i please ask how do i make my smoke sim thicker? in solid view it looks ok, but in rendered it looks too thin, even when i finally render it i get thin smoke? i even set the value to the maximum=8. but still i get thin result.

attached are the snapshots and blend file

CHIMNEY SET TO COLLISION SOLID MODE
CHIMNEY SET TO COLLISION SOLID MODE932×534 25.7 KB
SMOKE SET TO MAXIMUM
SMOKE SET TO MAXIMUM1153×531 89.4 KB
sOLID VIEW LOOKS THICK
sOLID VIEW LOOKS THICK961×531 33.6 KB
WHY SO THIN SMOKE 2
WHY SO THIN SMOKE 2960×540 387 KB
WHY SO THIN SMOKE 2-CHIMNEY SET TO COLLISION
WHY SO THIN SMOKE 2-CHIMNEY SET TO COLLISION960×540 382 KB
WHY SO THIN SMOKE
WHY SO THIN SMOKE938×504 519 KB

SMOKE HELP 2.blend (1.0 MB)

Thanks in advance for the help guys. i really appreciate it.

3

i guess setting the Multiplier Value higher can make it thicker