Normal Sudoku rules apply.
Hot and Cold Cages: Cages are either hot or cold. Hot cages contain positive values and cold cages contain negative values. Digits may repeat in a cage. It's up to the solver to determine if a cage is hot or cold.
German Whispers: Values along a green German Whispers line must differ by at least 5.
Thermo: Values strictly increase from the bulb end of a thermometer.
V: Cells separated by a V must sum to +5 or -5. Not all Vs are necessarily given.