I can think of one scenario… If a user keeps the space heater always plugged in, and already depends on the unit’s built-in thermostat full time… then adding a properly rated smart outlet can at least allow the heater to be disabled based on on time of day, mode, or presence. In other words, it can be used to save some electricity at times when additional heat is not required. I would personally never use a smart outlet, a temperature sensor, and the ST cloud to replace a proper UL/CE rated thermostat.
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