Vacuum Cleaners Discussions

It's true, no more clutch.  It uses a brushroll motor.

Venson:

The DC17 to date is the best rated dyson upright consistently by Consumer Reports.  For the $399 price, w/o the gawdawful clutch in the defunct DC07 and DC14, the DC17 with the extras from COSTCO is the dyson upright to buy if one is so inclined. 

Carmine D.

The DC27 at SAM's Club Stores still shows just 2 product reviews, very good by the way, from Dec 2008 and April 2009.  While not the most pervasive of retailers, I would have expected more reviews by now based on past new dyson product launchs.  Especially among the dyson faithful.  Perhaps, the price [$469] is too steep for most, even the dyson faithful, in the current economic down turn.

I expect these new dyson models will make their way soon into other retailers and the prices will come down. 

Carmine D.

A couple of more reviews have been added to the Sam's Club DC27 profile. 

http://www.samsclub.com/shopping/navigate.do?dest=5&item=418376&pCatg=7247#reviews

Carmine D.

Thanks for the link Carmine (I think).

The DC27 is on the Dyson UK website.  Somewhat buried (what else is new/no link has been provided while viewing this vacuum @ the Online Store DC27 page) is a nice “Find Out More” page of the DC27.  There’s a pop-up video showing why Dyson LTD. does not use manual height settings.  Worth noting... Dyson is finally fighting back...  they use the TTI VAX Mach 7 to illustrate the downside to manual carpet height adjustment/the downside to owning the VAX Mach 7.

http://www.dyson.co.uk/technology/dc27Patents/default.asp

DIB

DysonInventsBig wrote:

Hello DIB:

I excerpted this from the dyson link you provided on the DC27:

 "Auto carpet height adjustment:  Conventional cleaner heads have a limited number of height settings. Too low and the cleaner head plunges into the pile making it hard to push. Too high and suction just leaks away."

Based on the height adjustments on dyson's latest DC28, I have to conclude that dyson has mixed emotions and beliefs about the advantages and benefits of height adjustments.  Logically and realistically using a self adjusting dyson upright on a medium to high pile carpet leads to harder and heavier push/pull weight on the usres' arms and wrists.  Adding a adjustment [as in DC28] reduces the adverse affect on the users. 

Carmine D.

CarmineD wrote:
Carmine,

I have not used the DC28 as of yet.  With regards to push/pull weight...  I have never done any push/pull comparisons or measuring on differing carpets.  Logic suggests...  the wheels of a vac sink into the pile and this contributes a heavy/light feel when push/pulling a vacuum.  Logic suggests... measuring how much lift it takes to pull a floating nozzle off differing piles is a good starting point to determine if pile height (in general) makes any real difference to a push/pull feel (strength).  My guess is... the taller the pile, the less the nozzle grips the carpeting (air leaks thru the longer pile)...  and so, Dyson responded by inventing the DC28 nozzle assembly.


DIB

DysonInventsBig wrote:
Hi DIB,

Sorry to say but your guess is wrong. There is no lift for the so-called floating nozzle. It is just an excuse for not going for the expense of a formal height adjustment as it is meant to "ride" atop both low and high level pile. The best way to achieve that is by use of broad wheels or rollers to better distribute its weight over carpet pile. It's all in the numbers. The example is similar to breaking one stick easily but then attempting to break a bunch of sticks as a group. Wheels that are narrow easily sink into carpet pile. Wide rollers or collection of wheels or simply a wider wheel set fare better on high pile. This is not a new discovery.

The old-fashioned way, the nozzle actually being raised or lifted above the wheel-base to accommodate height is the better thing. Floating nozzles call for other actions. My Miele S7 uses lesser suction delivery at the floorhead to ensure easier pushing san a height adjustment. (This is true and can be tested.) The point best proved is that an aggressive brushroll and some but not all a vacuums air power can take you a long way.

Needless to say, I am totally taken aback by your interest in the DC28 because it barely has a swivel to its name.

Venson

DysonInventsBig wrote:

On deeper carpets, the vacuum's wheels sink lower into the rug pile.  In turn, the self-adjusting floatation nozzle sinks deeper into the carpets.  Result: The brush roll meets with more rug resistance making it more difficult to revolve.  In turn, the vacuum is harder to push and pull on deep carpets.  Result: The heavier/harder is the push pull weight on the users' arms and wrists during vacuum operations.  One likely solution employed by the vacuum industry for many years, and now even dyson on its latest DC28, is a rug height adjustment.  The general design and fuction of most adjustments is to rasie and lower the height of the rug nozzle to compensate for rug thicknesses.  In dyson's case, the rug adjustments raise and lower the brush roll inside the nozzle accordingly to allow easier push and pull on the users for deep carpets.  Either way, the effect of a rug adjustment is to maximize cleaning performance by the vacuum and minimize the efforts of the users to achieve it.

Carmine D.

DysonInventsBig wrote:
Hi DIB

I can see why Dyson may not have put the DC27 on the main part of the home page as it just an improved DC14, there is no brand new technology on it just improvements over the DC14. I've seen the base model in the shops it slightly less taller than the DC14 and the bin handle is lower and smaller in diameter to the DC14. I can say it has a 1400 watt motor not 1300 as some websites say as i checked the serial number plate on the display model! Although the airwatts are lower to the DC14! Air seals are better around the bin. Same brush bar\roll as the DC14 if not slightly bigger with slightly more turfs of brushes! I'm yet to test this machine to see what it is like.

DC18

Dyson's DC27, a Sams' Club exclusive, now has 5 reviews [wow].  Been on the market since October 2008, or 10 months.  It gets just a tad more than 4 stars, typical for dysons.  About 80 percent positive.  $479 for the Total Clean. 

http://www.samsclub.com/shopping/navigate.do?dest=5&item=418376#reviews

Carmine D.