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Central vac cleaner power ratings
QUESTION: Does anyone know the equivalence among the differenct ways of measuring air
vaccum? I am installing a central vac in my home and one brand is rated 178
inches of water lift, another is rated 518 air-watts and another is rated 3
horsepower.
ANSWER: http://www.air-way.net/faq.html
says that you should find out the water lift of the different vacuums you
are interested in, as this is a better measurement for vacuum cleaners. It
has something to do with lifting water in a sealed contanier - how high it
will lift it, but I'm uncertain on the specifications or dimensions of the
device used to measure this
suspect that the purpose of the units chosen is so that you can't compare
vacuum cleaners! you're always comparing apples to oranges..
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