低熱

低 = 亻 + 氐 : Dorothy Gale (di) and Rosa Luxemburg (亻) are in a hopeless situation. They are hanging down (低) from a foundation (氐) floating in front of the space station (Ø1) and away from it. In this hopeless situation their moods are very low (低) and they let their heads hang down (低).

热 = 执 + 灬 : Robinson Crusoe wants to heat himself up in the elevator's bathroom, so he burns his good-for-nothing grilling license on a grill to ignite a sizeable flame.