Search results

Mikko, Never be afraid to experiment with the height adjustment. Different dirt and carpet types may require 1 click higher or lower than standard. BUT, what's so cool about manual height adjustment is that the user has a choice. Many vacuums today merely float over the carpet at whatever...

Miele Canister Airflow Prediction #2 Here's what my airflow prediction would be for a typical scenario for a Miele C3. Starting with 141 CFM for the motor not installed in the unit itself. Dropping 11 CFM to 130 CFM for a canister base measurement. Dropping 12 CFM to 118 CFM for hose and...

Miele Canister Airflow Prediction #1 I love a challenge. So it has been claimed that a modern canister can keep up with a modern Kirby. Let's check some possible calculations rather than just making unfounded claims based on things other than airflow. Miele Complete C3 Cat & Dog Stated...

Warren, It doesn't take much to perform tests on these machines. Even if my measurements are off by a whopping 1%, you and I know that's not very statistically significant. For "quick and dirty" airflow tests, use a Baird meter (right now Tom G. is cringing). My airflow chart for it is posted...

Well no wonder you have reasonable cyclone airflow then... :) Let's do an efficiency calculation, shall we? 2100 Watts / 85 CFM = 24.7 Watts per CFM for your UltraFlex 1296 Watts / 77 CFM = 16.8 Watts per CFM for my DC14 I can only imagine how poor the airflow was using only a 700 Watt...

Mikko, What is the power usage of your Electrolux UltraFlex? 85 CFM through the cyclones is probably a record! My Dyson DC14 can only do 77 CFM (measured through the hose), but that's using 1296 Watts (brush roll spinning on carpet). Bill

Mikko, Based on what I saw in your video, your G6 was slightly better per stroke. The Shark did a poor job at the edges of the nozzle. That being said, sawdust is a very easy test and most vacuums have an easy time picking it up, especially since it is more or less "on top of" the carpet...

I bought a new 5'x7' Mohawk medium pile carpet for vacuum tests in my basement recently. I wanted to see what vacuums had enough power to pull flour up through the carpet into the dust bag. The test was completed with only 2 complete strokes (2 forward/2 backward) at medium speed right through...

Alex, Watched your video and compared your G4 against my G4 (fully restored). This is what I observed: 1) Your have a non-Kirby brush roll installed. I would recommend the standard 156294 medium bristled chevron loose tufts. It also has the magnet in it as pictured below so that the BPI can...

Replies Mikko, What a drop in airflow from your "bag saver"! From a 6 to a zero. That would mean: 93 CFM (a "6") - 46 CFM (a zero) = 47 CFM loss due to the cyclones. Mark, It's pure physics. Cyclonic machines will always sap airflow because they make the air "do extra work". Examples: Dyson...

I bought a new 5'x7' Mohawk medium pile carpet for vacuum tests in my basement recently. I wanted to see what vacuums had enough power to pull flour up through the carpet into the dust bag. The test was completed with only 2 complete strokes (2 forward/2 backward) at medium speed right through...

All, Please take a look at my toilet paper roll test and conclusions. Because the roll is VERY light, it is also very sensitive. This is bad because just a few CFM difference can make the roll stick to the winner's vacuum. I have proven a 4 CFM difference is all you need to "win" this...

Replies, Alex, Hmmm, something's wrong with your G4, wonder what it is? Maybe pics of the brush roll or a YouTube video might help us figure it out? Adin, I have a 1980 Electrolux Olympia One, but that's the newest Lux I have. With a new hose, my airflow box says 75 CFM at the nozzle, which is...

I've seen a few paper towel and toilet roll tube testing videos on YouTube and have found some people put great faith in them. So I grabbed a Kirby G5 and G6 and got down to testing what the seemingly "magic" rolling tube can actually uncover. Testing conditions: 1) Both machines, which...

Mark, In my small collection here's the best hose measurements based on type of machine. HOSE MEASUREMENTS (with HEPA bag/Filters installed) Dirty air upright 120 CFM = Kirby Sentria II Clean air upright 115 CFM = Panasonic MC-UG589 Clean air canister 95 CFM = Electrolux Olympia One (new vinyl...

Derek, Yeah, that'll be a reading directly from the motor. What manufacturer would ever want to post a much lower nozzle number? :) Even Aerus only posts out-of-the-vacuum motor specs, like the Guardian Platinum 505 Airwatts, 116" of water lift. Bill

I bought a new 5'x7' Mohawk medium pile carpet for vacuum tests in my basement recently. I wanted to see what vacuums had enough power to pull flour up through the carpet into the dust bag. The test was completed with only 2 complete strokes (2 forward/2 backward) at medium speed right through...

Mark, Yeah, I'd think that 100 CFM at the nozzle would probably be something of a record for a clean air machine. Mikko, That Nilfisk is pretty cool! A Baird 9 is about 108 CFM at the end of your hose. BUT, measure it once again at the nozzle end and watch the CFM drop an average of 20 CFM...

Ah, That's What I Thought You Were Asking... The Hoover Tempo Widepath has a whopping 80 CFM at the nozzle and only costs $70 from Amazon at the moment. http://www.ebay.com/itm/Hoover-Tempo-Widepath-Bagged-Upright-Vacuum-U5140900-/262903295540 I've had mine since 2012. EXCELLENT cleaner for...

Mark, Just a clarification: did you mean a bypass motor in a domestic cleaner or a "clean air" machine that has a bag first orientation? Bill