The liquid in an accelerated teapot is a function of its acceleration, so there are accelerated teapots where the water is boiling. This is the same for a non falling tea pot near a BH. I sea two reasons for this: a) The Unruh effect says that in the teapot frame there is around it a blackbody radiation of particles at a given temperature. there is an equilibrium between the teapot and the particles. b) there is a pressure on the water due to the acceleration. the boiling temperature of a liquid depends on the pressure so the temperature comes from the acceleration. It does not need an external thermal bath. Are these points of view exclusives?