Biotechnological apparatus, bioreactor system with several biotechnological devices, methods for controlling the temperature of a cultivation space in a biotechnological apparatus and methods for controlling the temperature of cultivation rooms in a bioreactor system

Biotechnological device, comprising: - a bioreactor (1.1; ...; 1.n), - a reactor vessel (30.1, ..., 30.n) which in the bioreactor (1.1; ...; 1.n) (31.1, ..., 31.n) having a culturing space is formed, and has to the cultivation room of a temperature, a heat pump (28.1 28.n;; ...) - (31.1, ..., 31.n) to be tempered, wherein the heat pump (28.1, ..., 28.n ) (via the reactor vessel 30.1; ...; 30.n) to the culturing space (31.1; ...; 31.n) on the one hand and (to a reference potential, a heat for the heat pump 28.1, ..., 28.n) forming reference body (26) on the other hand, thermally coupled from a heat conductive material and with the supply of drive energy useful heat from the reactor container (30.1, ..., 30.n) and the reference body (26) carries, or vice versa.