How do I heat a wooden enclosure?

[Neko_snake]

Yes I know many breeders keep their temperatures even but I thought that giving the snake a choice would be more comfortable for the snake. Since it can't tell me if it's too warm.

I thought about putting the heat mat inside the emclosure with a second bottom.
The bottom of my wooden viv is sealed with epoxy resin btw.
Here's the idea. I could use a pvc board as a second bottom, put the heat mat on the pvc (like in my other cage), put spacers on the undersite of the board so that there is air flow where the heat mat is. Then put the second bottom in the wooden viv.
Since I want to make it bioactive I'd have to use a drainage layer and substrate. So I'd have to find a way to seal the edges of the pvc board so that no water can get to the mat.
Furthermore I'd have to make a kind of hole in the substrate so that my snake can get to the heat from the mat. So more of a in the ground hide.
Do you get what I mean? Think it could work?

I'd suggest checking out the biodude and his bioactive mix. With that mix you don't need a drainage layer so if you're going with a heat mat that may be better. Although I'm not sure about your idea of a false bottom. If there's small cracks then your heating is done and if you have a false bottom then you can't access it for maintenance or if it breaks slightly it's harder to know. You might have thought of ways around this but I'm not sure with the info you said.

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