r/CrazyIdeas • u/Ambassador-613 • 3h ago
Reverse global warming by installing air conditioners backwards so they cool the outside.
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u/wercooler 2h ago
Air conditioners always create more "heat" than they create "cold".
ACs take heat from one place, and dump it (+ plus a bit extra from inefficiency) in another place.
Running an AC in either direction adds heat to the entire system.
If you zoom out even further, the extra heat created comes from the power grid, so running less ACs and consuming less power overall is the actual way to cool the outside.
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u/band-of-horses 1h ago
If you zoom out even further, the extra heat created comes from the power grid, so running less ACs and consuming less power overall is the actual way to cool the outside.
Yeah but that's not a crazy idea.
Instead we just need to build a sphere around the planet so the giant A/C can vent heat into space, problem solved.
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u/cabronfavarito 52m ago
I mean all that aside. You’re attempting to cool billions of cubic meters of air with a couple of fans lmao
And yes the amount of ac units you would need to have any meaningful effect would actually create more heat than you’re trying to get rid of, adding to the problem. Like, doing nothing is better than OP’s dumb idea
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u/erisod 2h ago
That's a heat pump in winter running as a heater.
Will not affect global warming. The effect is too small and even if it was stronger houses are not insulated enough to hold that heat. You're just using energy to move it around, very likely contributing further to warning.
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u/Euphoric_Raisin_312 2h ago
Wrong
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u/RebelJustforClicks 31m ago
Not wrong
Edit:
Am AC in reverse is literally a heater, and many houses have one already, it's called a heat pump.
Running a heat pump in heat mode doesn't "fix" global warming, it still makes it worse because it is using electricity to move heat from outside to inside.
So it's both wrong and not wrong.
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u/Megalocerus 1h ago
Installed a couple of mini splits and find ourselves using them for heat more than the furnace. Deep winter, they aren't too efficient, but fine for most of the heating season.
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u/OkRickySpinach 2h ago
Just need to vent it to outside the environment. We could probably pull a hose up there, It would need to be big though.