Originally Posted by
cougarmeat
This “reflective surface” characteristic comes up from time to time. I haven’t had an opportunity for practical experimentation but “people say …” in order to benefit from the heat radiation reflection, there has to be a distance. In other words, If you wrap yourself in a space blanket - or have it right next to you (on top of the OCF), then it will act as a wind barrier, but there will be conduction heat transfer. If you create some space (below the OCF) then will act as a wind barrier AND reflect back heat. I think they are saying that if there isn’t a gap, the conduction property will be the pervailing characteristic over reflection.
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