DO NOT PLACE ANYTHING OTHER THAN THE ANIMAL on pig blankets. Sorry to shout, but I found out the hard way when my boas pushed their humid hide ontop of the pig blanket and it started a fire which killed the two boas in the enclosure and resulted in the deaths of several other species due to smoke inhalation.

It's the first and only fire I have had in over 25 years of keeping herps.

If you are going to use pig blankets, simply place them on the floor of the enclosure and leave 'em be. Make sure there is no way for any of the torts to push bedding or anything else on top of them. Not the most aestitically pleasing look but definately safe.

Another option would be to put Ceramic Heat emmitters in the roof of the barn or radiant heat panels. Though not exactly what the torts are used to physiologically or psychologically my experience has been that they do adapt well.

Ian