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Thread Number: 41732
/ Tag: Brand New Vacuum Cleaners
New Kirby Avalir2 system owner. Impressed engineer. |
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| Post# 441330 5/1/2021 at 15:29 (1,089 days old) by DougH (Washington Island, Lake Michigan) | ||
I purchased a Kirby Avalir2 system. I had decided on the purchase and cost before I offered. I had studied the owners manual and various videos before. I tolerated the three hour pitch. I was impressed by the Dirt Meter demonstration.
I was trained in cleaning radioactive spills, wet and dry, so I know vacuuming and filters. I am a meticulous housekeeper. I was amazed by the Dirt Meter indication. I found and studied ASTM F558-13 Standard Test Method for Measuring Air Performance Characteristics of Vacuum Cleaners and understand why and how Kirby is superior cleaning. I had a discolored patch at the foot of my recliner from years of shoe soil, even though I Hoovered and shampooed annually. My first assay with Avalir2 and it is gone. Color me impressed. Looking forward to years of service. There are now three worn out Hoovers in the garage, now to be disposed. | ||
| Post# 441342 , Reply# 2 5/1/2021 at 21:28 (1,089 days old) by Lesinutah (Utah) | ||
The | ||
| Post# 441358 , Reply# 3 5/2/2021 at 10:05 (1,088 days old) by DougH (Washington Island, Lake Michigan) | ||
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“They, meaning Kirby are good at suction and aggitation, but their extremely loud and unbarable as well as heavy”
I am a big person and regard housework as light exercise and good for me, lugging stuff upstairs and down. Be careful of complaining of loudness as the UN-ECE has just tightened their vacuum cleaner noise limits from IIRC 100 dBA to 80 dBA. Almost all of the inefficiency Airwatts/Watts electrical is noise. The size of the smallest aperature sets an absolute limit on vacuum Airpower, what ever the electrical power of the vcuum motor might be. | ||
| Post# 441411 , Reply# 5 5/3/2021 at 15:02 (1,087 days old) by DougH (Washington Island, Lake Michigan) | ||
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Dirt Meter arrived.
Early today I did my normal weekly vacuuming of all surfaces not covered by something too inconvenient to move. The Tech Drive power assistance made a significant difference.
This afternoon the Dirt Meter arrived with 100 filter papers. Now I have to think up a standard measure protocol. Hmm hmm hmm. | ||
| Post# 441432 , Reply# 6 5/3/2021 at 20:50 (1,087 days old) by mark40511 (Lexington, KY) | ||
If I had a Kirby
I would absolutely get the (12 foot?) hose. I think it's 12 feet or something like that. I know there's a 30 foot but to me 12 is enough...This way, you can park the Kirby and clean all over the place that isn't carpet..I used to ONLY want canister vacuums because above floor cleaning is easier, but now with these longer extension hoses and attachments (even universal ones that work with many vacuums) it basically turns the upright into a canister or almost a central vacuum...I have one for my vacuum. I don't use the on board tools for my vacuum but instead I use the tools that came with the universal hose I bought for it. I would LOVE to have a Kirby. I already have a rainbow.
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| Post# 441444 , Reply# 7 5/4/2021 at 06:57 (1,086 days old) by DougH (Washington Island, Lake Michigan) | ||
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Vacuum cleaner physics
No vacuum cleaner can exceed Airpower=volume flowrate at 373 m/s X absolute vacuum. Therefor the smallest orifice is the limiting parameter, and the the smallest effective orifice. The hose diameter is the smallest orifice and as the hose gets longer the effective orifice gets still smaller.
For more Airpower at the tool, use the shortest smoothest hose possible. This why the Kirby Power Nozzle is so effective and powerful. See also ASTM F558-13 Standard Test Method for Measuring Air Performance Characteristics of Vacuum Cleaners | ||
| Post# 441445 , Reply# 8 5/4/2021 at 07:34 (1,086 days old) by mark40511 (Lexington, KY) | ||
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| Post# 441452 , Reply# 9 5/4/2021 at 09:36 (1,086 days old) by vaclab (Pickerington, Ohio) | ||
I'd love to read ASTM papers
like ASTM F558-13, but you have to pay for them and they cannot be re-published in any way shape or form publicly. Rather aggravating isn't it?
www.astm.org/DATABASE.CAR... I'm not paying $69 for a "white paper." For a dreadfully boring explanation of airflow, airwatts and suction see this video. Cleaning of most bare floors is very easy. Provided you have the correct type of agitation, very little airflow can be used because the nozzle is very close to the dirt. The T10 has airflow ranging from 24 CFM to 44 CFM and as you can see in the video, there is not much difference. Obviously, the PN was not designed to pick up large objects but switching to a "fluffy" type PN would change that. Kirbys do well with all types of pile carpet not only because of the tremendous airflow but also due to the height adjustment forcing the nozzle down into the pile. Of course without the Tech Drive, newer Kirbys wouldn't be push-able in any practical manner. My Avalir is useless on medium pile carpet with the Tech Drive off. Lastly, check out the ASTM curves for a central vacuum motor. You can see how the airwatts formula is used when varying the test orifice diameter. Bill (VacLab)
View Full Size
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| Post# 441453 , Reply# 10 5/4/2021 at 10:39 (1,086 days old) by DougH (Washington Island, Lake Michigan) | ||
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ASTM documents on ScribD
Many ASTM International (previously American Society for Testing and Materials) documents are on ScribD. www.scribd.com/... $10 / month
CLICK HERE TO GO TO DougH's LINK | ||
| Post# 441467 , Reply# 11 5/4/2021 at 16:55 (1,086 days old) by Kirbyg6 (York) | ||
 | ||
| Post# 441470 , Reply# 12 5/4/2021 at 17:32 (1,086 days old) by DougH (Washington Island, Lake Michigan) | ||
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BLDC Brush-Less DC motor | ||
| Post# 441481 , Reply# 13 5/4/2021 at 21:20 (1,086 days old) by juju93 (South Georgia) | ||
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well avalir 2 didn't go above and beyond avalir 1 expectation due to the fact that they are the exact same machine. | ||
| Post# 441486 , Reply# 14 5/4/2021 at 22:06 (1,086 days old) by Lesinutah (Utah) | ||
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Wtf | ||
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