using heat

is heat just a fat burner?... and when do you throw heat into a cycle?

a friend of mine is on sus + tren(6 weeks) + winny(2weeks) for 8 weeks and is using heat from day 1, now will heat somehow affect the other roids? or do you use it just before pct?

Some guys use it as a enery booster for their workouts, or also to keep the fat down while on cycle.
It is PROBABLY best to use it when you are finished the bulking part of your cycle. It would be used for cutting, so, in this case, with the Winny.

Tell him not to use the HEAT if he is trying to put on muscle. The incresed metabolism will lower the maximum gain he could be getting from a bulk.