Actually, I'm surprised they weren't using them long before. It's basically AC with an extra valve. Thought they get priced like they're some sort of new technology.
this post was submitted on 07 Jan 2025
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I reckon they thought seat heating and steering wheel was enough, and it kinda is for the most part
Vapor injection is the new technology. It's why older heat pumps were useless below 32f.
Vapor injection becomes an excuse to downsize the compressor and lowers the cost, it seems. You could easily go lower than 32 if you oversized the pump before EVI, but those were only in specific heatpumps.
I suspect the reason for that was that the pumps used in car ACs are not really very powerful. They were alright for cooling the car down, but for heating heat up in a cold environment you need a fair amount of throughput, they work if you have the throughput, but you need it to be there.
They work by pulling ambient heat out a large part of the outside and dumping it into the small inside. You need many times the contents of the interior to warm up if it's a cold day outside. Thus you need a lot of air and if you want it to happen in a reasonable time frame you need quite a powerful little motor. The ones on houses are fine because they're huge anyway.
It uses the same amount of energy to create cold as it does to create heat.
Well it's about temperature differences, those are larger in winter I guess. On the other hand there is a lot more radiative heat load in summer...
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They also need to be able to get the cold side colder than the outside air so once it gets too cold they don’t really work. There can also be some problems with condensation but when they do work they’re great.
There was never really a need in ICE vehicles since they can primarily use waste heat from the engine.
Pretty sure they meant EVs
Pretty sure @[email protected] meant to explain why they weren't a thing in cars in general
Yes that was my point.
As someone in a rural state, cold weather range is one of my chief concerns. I work from home but on the weekends travel to far away backcountry areas to ski.
I'd like to get a full EV when my current lease expires(2.5 years) but the pool of cars that are affordable, have AWD, and 300 miles of range(aka 180-225 in winter) is quite limited.
In 2.5 years, the EV market will look very different. Just the last year has shifted a lot around with the used market (such as Hertz cycling out a bunch of Teslas and offloading them cheap).
Just leased an Ioniq 6 and been loving it. Depending on what you consider affordable, it checks your boxes! I leased mine during a major sale and with a trade in, though.
What's the upper end of affordable for you?
I'm paying ~$450/month for my lease now(Hyundai Tucson), but I could probably afford up to $1000/month if it's something I really liked.
Gotcha! I'm not great with the intricacies of leasing, but take a quick look at Lucid Air. Their site claims "from" $700-730 monthly for 36 month lease. And they're supposed to be ridiculously efficient with great range
If that's not really your jam (I wouldn't blame you), maybe Hyundai Ioniq 6, Kia EV6, Cadillac Luriq, or Polestar 2, probably with my personal preferences in that order
Or take a walk on the sub-300 mile wild side and pick up a used Taycan wagon!
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Chevy Equinox? I guess it depends on what you call affordable and how long the $7500 federal tax credit survives
Not a bad option but still below 300 miles with the AWD.
Check out the 2023 Q8 e-tron. There’s usually good lease deals on them and they meet that list. Wait for them to come off lease and you can get them at a steal. I’d recommend the 2022 but those had a smaller battery pack and wouldn’t meet your range.
Good call, looks interesting. I'll take a look
Ignore that guy, Kia Ev9 is better
You're probably a better candidate for a plug-in hybrid.
Yeah I'm coming to terms with that now lol. Debating between leasing with the hopes to get a full EV after another 3 years, or just buying a PHEV.
Just saying that the Prius Plug-in Hybrid seems to be an excellent PHEV.