I have an RBI RHP and read on their website FAQ that they can only be used if more than 6" away from any cage surfaces. I just bought one before I read the FAQ and where I want to put it in my cage is about 4" above a perch (green tree python). It's a glass cage with closet rod supports attached to the sides with silicone, so they can't be moved. Any ideas if this is going to be a problem? I don't want to ruin it by sticking it in there. I've seen pics of other brands that are very close to surfaces.

