Whoa, no need to get defensive. All I am saying is that from my research, in most cases I doubt the heat from the EMS is anything to be truly concerned about. It sounds like your experience is out of the ordinary because for something to get hot enough to burn through the casing and mark your floor it would have to be extremely hot. Perhaps you had a defective unit. Not knowing the specifics around the situation I cannot say for certain.
What I can say is that mine has been mounted in the same position and in use 24/7 since October 2015 without any issues of heat. I was merely saying that simply because you had a bad experience is not a reason to blanket a "required" method of installation when the apparent majority have not observed the same issue. A cautionary warning would suffice to let others know of your experience, but your experience alone is not sufficient to override the manufacturer's installation instructions with what you believe to be required.
2016 XLR Thunderbolt 415AMP
-Progressive Industries EMS-HW50C, SteadyFast Stabilizers
2005 Chevrolet Silverado 3500 6.6L Duramax
-Hillsboro Flatbed, Dakota Hills Truck Defender Aluminum Front Bumper, S&B Cold Air Intake, AirLift Load Lifter 5000 Ultimate, VIAIR Medium Duty Onboard Air System,