Here is another heater that you can control with Alexa and Google Assistant. The Atomi Smart WiFi Infrared Heater is 1500W rated and can heat a room up to 750 square feet. This wall mounted / freestanding heater comes with a tip-over safety switch built-in. You can use the companion app to create daily/weekly schedules, check the room temperature, and a whole lot more.
You get notifications on your phone when the heater tips over. The device is smart enough to relink to WiFi if power is ever lost.