Heat Pump Performance - Anything to Report?

[BlueWhale]

I have no point of comparison, but my range has dropped significantly over the last couple weeks with my 2025 as things have cooled off. And I'm in the south (Tennessee)

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[eponey]

I think this topic among almost any other on the topic of range are elusive to most people. It's honestly why I wouldn't trust anybody with a preconditioning button and ford really chose a great solution that is not well implemented.

Energy use to heat the cabin is a function of time (aside from the startup cost of warming cold coolant but lets not complicate things).
Energy use to move the car is a function of speed and elevation change more so than time and is substantially more significant.

So yes a heat pump SHOULD increase range (it's impact will be less because the mach-e has learned to scavenge heat over the model years)

Lastly unless you are literally pushing your car to the end of it's range...who cares.

 

[Space_Pony]

I had an air source heat pump for my house but below 20f it was useless. Resistance heat kicked on and it used twice as much electricity. I now have water source geothermal heating for the house. The water never gets below 40f and I use almost half as much electricity for heating.
I know it's nothing like the MME but that's my experience with heat pumps.

 

[SWO]

I haven’t bothered reading through 5 pages of what appears to be entirely conjecture. Anybody actually do a comparison between a HP and non-HP model?

I’m gonna confidently say that at least 97% of winter range loss is due to cold weather impact on battery chemistry - not the heater efficiency - until someone proves differently. I think the HP might help some but, ironically, not in really cold weather.

Everyone gets all excited when they hear "up to 300% more efficient" but if you do the math it would only be a few extra miles on a longer trip over the course of a day....in exchange for more weight/complexity and less storage space. Im happy with the simple resistance heater in my car.

 

[SonicBlue]

Everyone gets all excited when they hear "up to 300% more efficient" but if you do the math it would only be a few extra miles on a longer trip over the course of a day....in exchange for more weight/complexity and less storage space. Im happy with the simple resistance heater in my car.

The heat pump is about as useful to range as these were to white men’s veritcals…

 

[tonytaylor53]

Everyone gets all excited when they hear "up to 300% more efficient" but if you do the math it would only be a few extra miles on a longer trip over the course of a day....in exchange for more weight/complexity and less storage space. Im happy with the simple resistance heater in my car.

Up to 300% in the 60-65 degree ambient range where you barely need any heat

 

[GreaseMonkey]

I think this topic among almost any other on the topic of range are elusive to most people. It's honestly why I wouldn't trust anybody with a preconditioning button and ford really chose a great solution that is not well implemented.

Energy use to heat the cabin is a function of time (aside from the startup cost of warming cold coolant but lets not complicate things).
Energy use to move the car is a function of speed and elevation change more so than time and is substantially more significant.

So yes a heat pump SHOULD increase range (it's impact will be less because the mach-e has learned to scavenge heat over the model years)

Lastly unless you are literally pushing your car to the end of it's range...who cares.

I understand your argument, but don’t agree with it. A good heating solution is one of a few indicators of a well engineered vehicle. Less range variance summer to winter has many secondary but important benefits: along with weight and aerodynamic improvements, it could mean a smaller battery, which in turn means lower cost and a more engaging driving experience.

In a cutthroat industry like automotive, you can’t afford to compromise on incremental improvements. You have to pursue all options and check every box. The game is won with things that, in isolation, don’t amount to much. Otherwise, someone else will not only eat your lunch, but your breakfast and dinner too.

That’s why auto will always be a 5-8% ebitda business.

 

[AKgrampy]

Do the heat pump models still have the resistive heaters? Our 2022 works well enough in the winter, but below -30 F (which it was today) it can take a while to warm up. I know the heat pump will do almost nothing at this temp so if they don't have the actual heaters, that will push me away from a 2026.

I am in the same boat regarding the heat pump. My 22GT Option deal comes due in April and I am trying to decide whether to keep it or not. Biggest issue currently; though, is no EV shipping to Alaska (unless something has changed.)

 

[MachSteve]

I'm in NJ and temps have been in the 20s lately and I've noticed a big drop in range ('25 Premium Extended Range) 50-60 miles less easily! and that's driving in Whisper Mode!!

 

[RickMachE]

I'm in NJ and temps have been in the 20s lately and I've noticed a big drop in range ('25 Premium Extended Range) 50-60 miles less easily! and that's driving in Whisper Mode!!

Mode is irrelevant.

 

[Bayviews88]

Well, ok, but on the plus side you now have an added something that can break in the future (just out of warranty).

Ford dealerships love this one weird trick…

 

[Kamuelaflyer]

21-24 physical battery is the same. 21 debuted with 88kWh usable but it was software limited and later updated to allow 91kWh usable to match 22-24 after Ford decided they didn’t need as big of a hidden buffer.

This gets bandied about here a lot but there has never been any confirmation of any update that changed the buffer on 2021 extended range vehicles to allow for 91 usable kWh.

No official Ford OTA update name/code is documented that changes the usable battery capacity from 88 kWh to 91 kWh on 2021 Mach-E Extended Range vehicles. Rumors and forum anecdotes exist, but they aren’t substantiated by Ford release notes or service bulletins.

 

[Teslaeata]

You didn't happen to ask copilot where it got those numbers, did you?

GIGO

Garbage in/garbage out

 

[SonicBlue]

This gets bandied about here a lot but there has never been any confirmation of any update that changed the buffer on 2021 extended range vehicles to allow for 91 usable kWh.

No official Ford OTA update name/code is documented that changes the usable battery capacity from 88 kWh to 91 kWh on 2021 Mach-E Extended Range vehicles. Rumors and forum anecdotes exist, but they aren’t substantiated by Ford release notes or service bulletins.

I agree. But I’ll go one further… if @Ford Motor Company had actually done this, don’t ya think they would have bragged about it??? Which provides strong evidence to me that they didn’t do it. So there was this speculation in a much older thread about how Ford might have “hidden” the range increase as an emergency reserve below 0% SOC. Which again seems a bit silly.

@Ford Motor Company could always weigh in at any point to resolve this little riddle. Well, Brian, what say you?

 

[guyf]

Well, one thing is sure, my 2025 Premium cabin heat in very cold weather is much improved vs my previous 2021.

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