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Advices from Central Vac Dealers
QUESTION: I am putting a central vac in my new home and would like
some info on the difference between the cyclonic type where
the dirt goes right into the cannister and the type with
bags and filters. I have heard that the cyclonic type does
not lose suction as the cannister fills (only when it is
full) but the types with the bags gradually lose suction as
the bag fills. Is this true? I also wonder if it is
necessary to get a vac with dual motors for a home with
2,900 sqft all on one floor. I've been told two different
stories by different dealers - some say you need a dual
motor vac to get the proper suction at distance from the
motor. Another dealer says that I don't need dual motors
for an area less than 3,000 sqft. Any infor about
experiences with central vacs would be appreciated.
ANSWER: Don't know about household vacuums, but the dust collectors used in
wood shops generally have a cyclonic chamber to separate out the
bigger stuff and a filter at the end to get the finer dust. This is
called a two-stage cleaner and is more efficient that a single stage
that only uses the filter.
We has a filter bag type central vac in the house we moved out of last year.
Basically, in operation the bag is inverted (up) and the accumulated junk
from the previous operation doesn't interfere with the current operation.
The bag does accumulate some crud which I removed by using another vac once
in awhile.
I added a "regular" vac bag to the outlet to further cleanse the exhause
air. I understand the Cyclonic vacs have an HEPA filter.
I would look for other features including power, ease of installation, etc.
Central vacs in homes have had a bad rep for some time, but may be
better now than my experience would indicate. Talk to current users.
If your dealers can't provide such references, guess what?
I've had more recent experience with industrial central vac systems, and
can guarantee you they're a pain in the butt to maintain
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