GoGoGadgetMachE

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LagerHead

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Dual motor? If so, it's 3.5 kW per motor, 7.0 kW. Usually takes 3 minutes to get a Tesla cabin from 40F to 70F.
The cabin heater in Model 3's equipped with a PTC cabin heater have the same heater whether single or dual motor. It draws 6 kW initially and has nothing to do with the drive motors. The motors are only used to heat the battery pack. They can supply heat to the batteries even when the car hasn't been driven recently.
 

pt19713

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The cabin heater in Model 3's equipped with a PTC cabin heater have the same heater whether single or dual motor. It draws 6 kW initially and has nothing to do with the drive motors. The motors are only used to heat the battery pack. They can supply heat to the batteries even when the car hasn't been driven recently.
I guess it gets more complicated since there are 2 versions, one with the PTC and the '21 Model 3 and all Y with the heat pump, which pull 3.5 kW/ea to heat both the cabin and battery.

20210414_074014.jpg
 

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