Comments about Lasko® High Velocity Window Fan (2155a):

I exhaust the whole house.I've owned 2 lasko model 2255a's.After 2yrs or so the motor will need to be oiled,it is a problem.The motor is not built to be maintained(no oil ports).I'm trying to get a replacement motor for the 2nd one.I't 5yrs old.I like the fan it's just not heavy duty.

Comments about Lasko® High Velocity Window Fan (2155a):

I went throughthe trouble of installing this fan. That included putting screws into the sides of my window. All for nothing. The fan rattled LOUDLY at slow speed rendering it useless for my bedroom.

Comments about Lasko® High Velocity Window Fan (2155a):

We live in a doublewide. AC died in the spring. We ordered this fan just hoping to be able to breathe this summer. Set in the Kitchen window on exahust. I was amazed at how well it cools the house.We haven't even used the high setting yet and the outside temp is 85. In here, there is a breath of air and the temp has remained around 78.We had to build a frame( Aluminum windows) but that was simple. Can't wait till we need to turn it on high and see what it does. A couple of ceoling fans and a box fan in the hall to direct the air is all we need. Buying one for my daughter ASAP

Comments about Lasko® High Velocity Window Fan (2155a):

this is the second one I bought, the first lasted 8 years.
the fan still ran perfectly, the plastic housing became old and brittle and after 8 years the color faded,but as far as moving air in or out it worked like a champ.

Comments about Lasko® High Velocity Window Fan (2155a):

Flimsy but only one available!

Comments about Lasko® High Velocity Window Fan (2155a):

This fan does a fine job even after 5 years of use. This is my third one, after 25 years service nearly continuous running on the older models, and I used the first two units much more due to the lack of a/c in previous dwellings. When the outside temp. is 88 or lower, this unit maintains a good airflow with a fine comfort level in the chosen rooms. And it will close room doors if they aren't opened wide.

Comments about Lasko® High Velocity Window Fan (2155a):

There aren't many other window exhaust fans on the market, thus this one is about all the choice anyone has. It does the job, easy to install, but a bit flimsy and the CFM is not as powerful as they claim. I did the math and it should be exchanging the air in my home at a rate of about every 9 minutes. At that rate I should be able to close all other windows and open just one and feel a strong breeze thru the one opening. Well, it does exchange the air and I get a nice breeze thru the lower floor open window but not as fast as I should. But hey, it did work and for a decent price. I installed it in an upstairs hallway window, set it on exhaust, closed all other windows except the one in the basement where the coldest air resides and let it fly. It does pull the cool air up two entire floors, but not as fast as it should. I have been able to cut down on my AC usage, still waiting for my 1st seasonal electric bill. I say if you have two floors and it's hard to get cool air upstairs, it's an economically means to move cool air up and hot air out.

Comments about Lasko® High Velocity Window Fan (2155a):

When it comes to larger sized window fans, especially ones with the "storm guard" feature that allows you to open and close the window in front of the fan without having to remove and reinstall it, there are not many offerings. There is the Lasko 2155 and a couple of similar units from Air King.

The Lasko 2155 moves a pretty good amount of air, but is a bit loud on the high setting for both intake and exhaust. It is also constructed a bit cheaply: complaints about the flimsy selector knob are indeed true. In fact,I keep mine set to medium exhaust and plugged into a switchable power strip to turn it on and off just to avoid wear and tear on the setting selector knob.

Also, be advised: it does easily accomodate all styles of windows. If you have newer replacement windows with a grip handle lip that protrudes from the bottom of the window, this lip may not clear the safety cage at the front of the fan blades. I had to set the fan back a couple of inches so the window grip handle cleared and this required me to add wood strips to the window frame so the fan could be properly mounted.

If you have older style windows without the protruding lip at the bottom, it will be easier to mount to the sill and frame.

Overall it is a decent fan but you may have to do some above and beyond work to get it to fit depending on your window style. Even then, it's not too much trouble, and if no modifications are needed, it is pretty easy to install.

Comments about Lasko® High Velocity Window Fan (2155a):

My Lasko window fan lasted longer than any product I've ever owned. Fan ran on low speed nearly every day for over 18 years and ran perfectly. 3 speeds and reversible give you plenty of options. Buying another one today as it finally died after a long life.

Comments about Lasko® High Velocity Window Fan (2155a):

Bought two of these and was very disappointed that one failed in less than a day and a half. Both on-off knobs fell off, one was actually off when I opened box. Had to super glue other one or else it just spun on on off switch plastic shaft. Lasko has a real problem with this. Lastly, on off dial has white indicator on white background. Difficult to see if you have older eyes. Fans do the job if they work properly.

Comments about Lasko® High Velocity Window Fan (2155a):

SUMMARY: 5/5 stars - glad I bought it, would enthusiastically recommend it to friends, and would not hesitate to buy one again-----This Lasko model 2155A window fan - also sold as the Air King model 9155 - is a real blessing for me. I live in the deep South (Georgia) where the oppressive summer heat index (high heat + near-100%-humidity) often reaches into the 130s and above - and I don't have air conditioning. For me, a large whole-house window fan like this one makes all the difference between comfort and living hell when July and August roll around (it's July 27th as I write this, and I'm sitting right next to the window with the fan in it).This is truly a WHOLE-HOUSE window fan, and it costs so much less to operate than an air conditioner. Compared with central A/C, I'm saving over a hundred dollars a month, which is over $600 a year EVERY YEAR. That's money better spent elsewhere! With this high-volume fan, I get my whole house cooled, without the $150+ monthly electricity usage of central A/C. This fan paid for itself in the first month.Also, I've found that as I've gotten used to not having A/C, I enjoy the summers more and I'm not nearly as lethargic and short-tempered when I'm in a place without air conditioning, anywhere from the supermarket parking lot to a cookout. It all makes me wonder, WHY would I pay $150+ per month and end up so dependent on air conditioning that I can't be happy enjoying the great outdoors in the summer?! It's all a question of what your body gets acclimated to.For the hottest summer nights, you can run a little window A/C unit in your bedroom, and still save a bundle because you can use this fan for the rest of the house instead of having to pay the skyrocketing electrical cost of central A/C.PROS:* Cost-efficient to operate - this fan moves 2470 CFM (cubic feet of air per minute) on only 90 watts - compare that with the larger 20" model (Air King model #9166) which moves 3560 CFM on 170 watts - an 89% power increase for just a 44% airflow increase...makes sense to just buy two of these 16" Lasko 2155A/Air King 9155 units instead...you get twice the airflow, not 44% more - and you get it for only ten watts more* Moves a LOT of air - more than a 20" box fan, more than anything sold at [...]or anywhere else I looked* Fused 3-prong grounded safety plug* Versatile installation options* 3 speeds instead of 2 or just on/off* Electrically reversible for intake and exhaust - a big plus, since I want to be able to exhaust hot air during the day and then reverse it to bring in cool air at night...without having to de-install it and manually flip the whole unit around like you do with some other' brands fans (AHEM!)* Quieter compared to the old metal-bladed fans from years past, which sounded like airplane propellers * Made in the USA by our friends and neighbors and fellow countrymen, not in some Chinese sweatshopNEUTRALS:* Construction feels a bit flimsy...everything is plastic, except the interior side's safety grille - BUT, this is basically irrelevant, because after it's in the window, it just sits there, and plastic does just as good a job of sitting in a window as metal. And, on the bright side, it's more lightweight than a metal fan would be, making it easier to install and to store in the attic or basement at the end of the season* Don't expect it to be silent on the highest speed, there is some wind noise...but that's not the fault of the fan, and there's nothing anyone can do about it...moving large volumes of air at a high rate of speed DOES entail noise, no matter what, so you can't fault the fan or the manufacturer for that* Pricey - for nearly-all-plastic construction, and only a 50% (maximum) airflow improvement over an $18 [...] box fan, I felt that the cost of $50-$100 was a bit high...would rather see it around $35-$40 - BUT, in the end, it DOES move more air than the $18 box fan, and has some features that make it worth the cost (electrically reversible intake/exhaust, less noise, expanding side panels to give it a perfect fit with any size window, fused safety plug, Storm Guard feature, etc.) - and given that there's basically no competition in the field any more due to the prevalence of air conditioning, I can't expect pricing to be at super-low highly-competitive ratesCONS:* Switch knob kept popping off...had to tighten up the screws under it and then put a dab of Krazy Glue on it (but that solved it)* Not widely available in stores - because air conditioners' prices have come down so much in the last 15-20 years, the demand for genuine whole-house window fans has gone way down, meaning that this fan is usually a special-order or online-only item, either of which generally entail waiting times and shipping costs (though your local Grainger branch may have one of the ones relabeled Air King in stock)-----All in all, I am being really unfairly picky here, and I think this is a fabulous product that I sincerely hope doesn't get discontinued. It's the right unit for the job, it looks good, and it does a better (and quieter) job that the all-metal models from years past. It's also very energy-efficient. Of what's available on the market in 2009, it is the best of the best, hands down, nothing else even comes close. I have ZERO "buyer's remorse" about this purchase, and would champion its virtues to anyone considering buying one. A great product!

Comments about Lasko® High Velocity Window Fan (2155a):

I've used this fan to air out my 1-large finished room attic, approx. 350 sq ft., this past summer. I live in Iowa and it definitely does "draw" the hot air/humidty out the room through the window. Also, it would "suck" the upstair's door shut as well, if I left the fan on high. Very easy to install...15 mins. A of couple "negative" things, (1st) the unit seems to be a little "light weight" in its construction; (2nd) the on/off knob kept falling off once in awhile in my hand as I was turning it. Overall, very satisfied with unit and would reccommend it to anyone with home attic like mine!

Comments about Lasko® High Velocity Window Fan (2155a):

I use this to air out the Trailer. It works very good. I did drop it once out of the window and it cracked, fixed it with on hand materials. Very good airflow and I would buy another.

Noisy on high setting.

Comments about Lasko® High Velocity Window Fan (2155a):

Despite good care and normal use, the fan died after 3 years. Mfr said the warranty was good only for 1 year. Where's the value, quality and performance in that? Just more cheap, unrepairable junk for the landfill. Very disappointing.