Can a heat mat be too big?

[aurum]

All the heat mats I can think of are better off if nothing is sitting on them (like a heavy cage)...it's just like they tell you not to step on lamp cords on the floor, as
they'll break down sooner. So yes, I'd say a heat mat CAN be too big, unless you had the cage actually resting on something else, not the mat itself, & the mat
remained protected....but then you'd be losing quite a bit of heat (depending on how big the gap was).

The kind of mats that wouldn't be damaged by that are the "pig blanket" type, or like the old rigid (heavy duty) ceramic ones (made for zoo use) that I have stored.

I didn’t know you weren’t supposed to rest the enclosure on the mat (I’ve never had to install one) and I feel quite silly now lol
It makes sense though, especially with the cable example, thank you