I don't get that. I have a 60 kilo Ambex in a 800 sqft room with the afterburner also in the room. When we were building out they said I had to add a 12.5 ton unit to my already existing 5 ton unit. I said that was over kill. They said your after burner can run at 1100 degrees. I said yes, but I can put my hand on the exterior and its cool to the touch. It was a waste to put that unit in. Granted I am a Florida boy and like it hot.