Do not quote me on this but none of my jungles ( I had two a few yrs back and sold them then last month got a new one) ever had (or have now) any heat from the floor in any type of way and they seem to do just fine without it. below is a picture of my set up (40 gallon breeder) and all I have on the top of it is a heat lamp. Inside is an igloo hut with moss in it a water dish on the other side and the soda case you see in the picture. He/she eats just fine (As you see from my "i got tagged" thread). The food never comes back up and since the first time I fed him/her it has always eating minus belly heat.

Yes a Hot spot off of the floor is just fine as lot as its hot enough to help him digest his food and as long as he cant come into contact with the bulb at all thats ok too.

Before you go by my word see what other people have to say regarding your and my own posts.