Nest, makers of “smart home” devices like thermostats and smoke detectors, have been met with a lawsuit. The plaintiff named in the suit claims the thermostat produced by Nest actually cost consumers money rather than produce savings, as it claims. He is asking that the case be given class action status, pointing to various message boards as evidence of Nest’s lack of performance. The complaint is pointed at Nest’s hardware. The complaint says the baseplate heats up, causing Nest to misread the temperature inside the home.