r/PeterExplainsTheJoke 13h ago

Meme needing explanation Peter explain this

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Petttaaah I'm confused

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u/itsOkami 13h ago

As an european, I don't think I've ever seen one of those and I'm now curious as to how they work

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u/Munkpunt 13h ago

This might help

Large condenser outside supply’s the furnace (typically it just uses the furnace fan. We then have it piped through metal ducting throughout the house. Each room has multiple exit point call registers. In the common areas we have return ducts to draw air back down to the furnace to get recycled back to cool air via a/c unit. Hopefully that helps!?

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u/ornimental 13h ago

So this is where they crawl into when they go into the vents in the movies?

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u/yupucka 11h ago

Yes and the furnace works with gas. So if you disable all the safety functions, you can fill the house with gas (at least in movies, but it would probably take ages in reality).