Ok so to be fair (to myself of course) I said that heat tape raises ambient temperature. I can not for the life of me see a situation where the heat tape would not be in contact with something. Either touching the bottom of the cage or the table the cage is on (unless we are talking about that new hover tape). Either way ambient temperature is raised when heat tape is used for floor heat. I mean one could argue that really it isn't even the heat tape and that it is the electricity powering the heat tape. Or in this case your saying that it is the material the heat tape is touching that is in fact raising the ambient temperature. Either way without the heat tape there is no heat or ambient temperature rise. So I feel my original statement was correct."I find that it raises the ambient temp" & "The tape heats the floor temp to 91 degrees in my tubs and that heat travels up... as heat tends to do and becomes trapped in the tub raising ambient temps to 84 degrees". Clearly I say that it heats the floor first and then raises up creating ambient temps. I was quickly met with "Heat tape doesn't raise ambient temps". Never once did I say that it would create enough heat for his cage he is building. I merely pointed out that 11" would be better than 6" because it would create more ambient temperature because it would be heating more surface area. That is it. So unless i reread this thread incorrectly I still stand behind what I said 100%.
Now somehow I have gotten into a hypothetical experiment (brought on by myself) on wether the heat tape alone by itself hanging in mid air will create ambient temperature. of course this has no practical application and is merely a pointless side track that I should have not brought up and I get enough of that from the wife. I do not have extra heat tape right this second, but I still feel even without it touching anything that it will still raise ambient temps. And honestly all i need to be right is 1 degree in my opinion. See by saying it creates no ambient temps your saying 0, no exception. by me saying it does that could be anything from .0001 degree to 100+ degree increase. My money is on my side of this, sorry.