They recommend that it never be run unregulated. The max operation temp they suggest is 95-100º and as it hit easily over 160º (size depending the 3-4 does 17 does not) I can only assume they always intend a regulated heat and they still recommend a gap.
- - - Updated - - -
likely out gassing issues. One side needs to be vented to clear the gas buildup. If iot needs to be enclosed a cable would be better.
Reply With Quote