There are many kinds, can you show it? If it's made for geckos it should be fine for snakes too...but I think you mean a variable temp. control, but not an actual
thermostat, right? There's a big difference, & BPs require more heat than many other herps, so it's more dangerous (as far as causing burns) if not well-regulated.
(You can't blame us for not wanting to see any more injured BPs around here...we're all animal lovers.)