this post was submitted on 07 Jan 2025
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[–] [email protected] 70 points 5 months ago (3 children)

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.

[–] [email protected] 43 points 5 months ago (1 children)

There was never really a need in ICE vehicles since they can primarily use waste heat from the engine.

[–] [email protected] 16 points 5 months ago (1 children)
[–] [email protected] 13 points 5 months ago (1 children)

Pretty sure @[email protected] meant to explain why they weren't a thing in cars in general

[–] [email protected] 5 points 5 months ago

Yes that was my point.

[–] [email protected] 11 points 5 months ago (1 children)

Vapor injection is the new technology. It's why older heat pumps were useless below 32f.

[–] [email protected] 12 points 5 months ago

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.

[–] [email protected] 3 points 5 months ago

I reckon they thought seat heating and steering wheel was enough, and it kinda is for the most part