You do know that your 100 watt Thor throws enough Infra red heat to light a fire from 12 inches away don't you? Crumple a ball of newsprint with a black inked portion towards you and point the Thor at it.
Seriously. I'm not joking.
To speed things up, I placed a fresnel lens sheet in front of my Thor and it took all of 3 seconds before it went
instant flamage. Holy cow!!
Cool party trick for sure.