New to wow and dont know how to read logs

About to try heat 3 soon, and was looking at the top hunters and see what they are rocking. I see they have around 160 - 180 fire res and was wondering if they are using Flask of Chromatic Resistance and juju ember or just using the pally and druid buff?
The log i was looking at was “Treeranger” Heat level 3 #1 hunter in damage
Appreciate you helping out!

Courtesy of a 3 second (I counted) google search.

Click a hunter, go into the logs.

Click buffs.

See how he’s getting the FR.

EZ