General > General Technical Chat
Vacuum Cleaner "Horsepower"
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Cyberdragon:
Just like space heater "room size" (see Technology Connections), we have another example of BS marketing wank from appliance companies.

Zero999:
I haven't bothered to watch the video, but it's BS.

1hp = 745.7W

What's the maximum power output of typical mains sockets in the area it's sold in?

UK
230V 13A = 2990W = 4hp

Europe
230V 16A = 3680W = 4.93hp
But the power consumption by vacuum cleaners in the EU is capped at under 1kW, if I remember rightly.

US
120V 15A = 1800W = 2.41ph

Perhaps this should be in the dodgy technology section?
SiliconWizard:
Hmm. About 3 kW seems a lot for a vacuum cleaner. Most of house vacuum cleaners are like half that or less.

Items meant to be plugged in basic mains sockets rarely draw over 2 kW or so. But a few are close to this: some hair dryers are rated close to 2 kW.

While this thing would probably have no market and would even be non-compliant in many parts of the world, it could still be real. It would just be illegal to sell it. :-DD
NiHaoMike:
Marketing indeed. Here's a central shop vac with a real 5HP motor:
Cyberdragon:

--- Quote from: Zero999 on March 21, 2020, 05:10:47 pm ---I haven't bothered to watch the video, but it's BS.

1hp = 745.7W

What's the maximum power output of typical mains sockets in the area it's sold in?

UK
230V 13A = 2990W = 4hp

Europe
230V 16A = 3680W = 4.93hp
But the power consumption by vacuum cleaners in the EU is capped at under 1kW, if I remember rightly.

US
120V 15A = 1800W = 2.41ph

Perhaps this should be in the dodgy technology section?

--- End quote ---

No, it's worse than that, watch the video.

They claim 4.5HP MECHANICAL POWER with a basic brushed motor (measured at 51% effeciency). :bullshit: There is even fine print claiming some sort of "testing" and that it's some sort of vague "peak power". He called the company (ShopVac in this case) to ask about it and they said they weren't allowed to disclose that information. :bullshit:

The "4.5HP" motor burned out at 1.68HP mechanical force. :-DD
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