Tesla Model 3 with and without heat pump comparison

We compare one of the very first Tesla Model 3s without a heat pump to a newer model with one. The latter shows impressive initial results with what appears to be about twice the efficiency when running the heater.

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With the launch of the Model Y earlier this year, Tesla introduced its own heat pump design.

It moved away from the resistive heater, which uses a heating element that converts electrical energy into heat, in the Model 3, the Model Y’s sister vehicle.

A heat pump system has the potential to be much more efficient, resulting in a longer range.

Elon Musk said that the Tesla Model Y heat pump is “some of the best engineering he has seen in a while.”

It took a few months, but Tesla brought the heat pump to the Model 3 with the 2021 refresh.

Now the first batch of new 2021 Tesla Model 3 vehicles have been delivered, and YouTuber Bjorn Nyland did a comparison test with his 2019 Tesla Model 3, which doesn’t have a heat pump:

He let the heat run in both cars for several hours at 21C (70F) to see how much of a difference the heat pump made.

Based on his test, he concluded his 2019 Model 3 without the heat pump required 2,170 watts to maintain the temperature. The new 2021 Model 3, on the other hand, needed only 735 watts.

That’s about three times more efficient.

Electrek’s Take

Interesting test and results, and props to Bjorn for running the test. However, I think there’s a bit of a mistake.

He got good readings on his own cars since he had access to the battery data through his third-party app. But he didn’t have access to the same data on the new Model 3.

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For the Model 3 with the heat pump, he instead used the percentage of the state of charge and assumed a usable capacity of 73 kWh.

However, we have been getting reports that the new Long Range Model 3 has a bigger battery capacity.

We are talking about 5% bigger, so it wouldn’t change the results too much.

The new heat pump is certainly more efficient. But I believe it could be closer to twice as efficient, which is still impressive.

We are going to need more tests in the future. I am particularly interested to see how it performs in much colder weather in the coming months.

What do you think? Let us know in the comment section below.

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With the popularity of many electric cars, more and more people are replacing their traditional cars with electric cars.

Conventional car can use the thermal energy by the engine work to provide heat to the cab when the temperature is low in winter.

And the electric car’s electric motor cannot produce enough thermal energy to heat the cab.

Also, in winter, the battery chemistry is not active and the battery power cannot be fully utilized because of the low temperature. electric car owners also need to heat the battery to raise its temperature in order to make full use of the battery’s electrical power.

According to these factors above, electric cars will need thermal management system more. And electric car heater is one of the very important parts of electric cars.

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