Yes, all electric heaters are required to have an emergency circuit breaker which shuts the unit down in the event of overheating.
what makes a electric motor get very hot and then shutoff after 20 seconds
engine
No
It is probably right next to the water heater. There should be a shutoff at the floor, if not then at the meter is the most likely shutoff.
electric heater
Gas heater & electric heater both are available.
No, this basic coffee maker has just an on and off switch.
The main feature of an efficient electric heater is, that is used up to 30% less engery than a conventional electric heater. This reduces the cost of the heater.
This item does have auto shutoff available on it as well as the sleep function.
The adjective is electric, because it is describing the heater.
Your water shutoff valve is typically located near the main water line where it enters your home. It is often found in the basement, crawl space, utility room, or near the water heater.
Yes it would be unlikely an electric motor coincidentally exactly matched the resistance of an electric heater.