General > General Technical Chat
Vacuum Cleaner "Horsepower"
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engrguy42:
Awww, come on. Don't be so rough on them. When they say "horsepower" they're just referring to a very small horse. Y'know, like those miniature ones that are only like 1 meter tall. They have power too don't they? Don't be so judgemental. 
WattsThat:
It’s the same kind of marketing BS that has the brewers battling it out for the biggest lie in who has the lowest carbohydrate content beer.

Pure BS like “2 grams of carbs and 90 calories”. Yeah, so that’s a lot of fat or protein making up the remaining 82 calories that’s unaccounted for. Unless of course they’ve come up with a new basic food group that we haven’t heard about  :popcorn:
james_s:
This is nothing new, it's no different than the cheap amplified speakers that claim "600 Watts!" yet run off a small wall wart. Vacuum cleaner makers have listed the amps and shop vacs have been rated in bogus horsepower for decades. One of the issues is that there isn't really a standard measure of effectiveness for a vacuum cleaner and most consumers have no idea what a horsepower is anyway in useful terms. They're going to end up being rated in some arbitrary unit anyway.
Cyberdragon:

--- Quote from: james_s on March 21, 2020, 11:59:57 pm ---This is nothing new, it's no different than the cheap amplified speakers that claim "600 Watts!" yet run off a small wall wart. Vacuum cleaner makers have listed the amps and shop vacs have been rated in bogus horsepower for decades. One of the issues is that there isn't really a standard measure of effectiveness for a vacuum cleaner and most consumers have no idea what a horsepower is anyway in useful terms. They're going to end up being rated in some arbitrary unit anyway.

--- End quote ---

It's a device that creates airflow. There are several ways of measuring it, flow volume, static pressure, exc.
james_s:

--- Quote from: Cyberdragon on March 22, 2020, 12:32:17 am ---It's a device that creates airflow. There are several ways of measuring it, flow volume, static pressure, exc.

--- End quote ---

Sure but which one of those do you use in order to meaningfully assess the cleaning efficacy of a vacuum cleaner? The actual performance is going to depend on many factors and a vacuum cleaner optimized to deliver high flow, high static pressure or some other number may not clean any better than one with much lower numbers. You know vacuum cleaner makers would optimize for high numbers over actual cleaning ability, I don't think it would be any more useful than the amps or horsepower.

One relatively easy thing they could do is require the horsepower rating if used to be actual rated continuous horsepower of the motor. Still not very useful but at least based on something.
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