Features:

  • Designed to fit into most double hung and slider windows
  • Adjustable extender screen and bonus extender panel help to secure fan into larger windows
  • Independent electronically reversible motors allows for air intake, exhaust, or air exchange
  • Plug in the power cord into a 120 AC Outlet. Refer to the PDF attached below in Technical Specification for User Manual.
  • Troubleshoot- if air does not seem to be blowing in properly adjust airflow directional switch to intake. Note-for slider windows set the fan vertically in your window opening with the left side of the fan situated on the bottom and the built-in extender panel on top
  • Comfort control manual thermostat sets and maintains ideal comfort level
  • Dual blade operation with independent electronically reversible motors; Three speed settings
  • Water-resistant motors are safe to use during rainy weather; Designed to fit most double hung and slider windows
  • Adjustable extender screen and extender panel help secure fan in larger windows; 3-year limited warranty
  • Designed to fit windows with minimum openings of 25 in wide and 12 inches hide; With extender panels, can extend to width of 35 in.
Exhaust or Intake, love it.

We do not have air conditioning, we live off grid. Wanted something that would suck in the cool night air to assist with our 'natural' air conditioning. This works very well, and does not use much energy. I love the fact that you can flip the switch and it will reverse the fans, so you can exhaust air, like when the husband burns the popcorn, or intake air, like we do at night.

Fresh air!

I wish I could leave more stars. We moved to a rental house that is older and has no exhaust in the bathroom. Opening the window when showering was way too cold. We popped this bad boy in the window and it really did the trick. We actually leave it on 24/7 and have noticed a huge improvement in air quality compared to our old house where we had forced air heat and never opened a window in winter. We haven’t been sick all winter whereas we used to get sick every few weeks. The window is in the sun all day and when we switch it to intake the air is actually warm. We are looking forward to running intake/exhaust this summer to get fresh air in without opening more windows as we are on a busy street.

Works great

I bought this fan because I'm a smoker and since I own my own home I reserve the right to smoke in it. With that said nobody likes the smell of stale smoke this fan fit's perfectly in my window and runs almost unheard while circulating the air in my smoking room, it's also great for using the morning cool air to bring down the temperature resulting in a slower warmup on hot days. The reverse switch is a must if you don't want the hassle of pulling your fan out and putting it back in to reverse air flow. I have had other window fans in the past and non of them worked as well as this one.

Can't Do Without

Love this fan I have owned 2. I am about to order again. I live in a hi rise in the city. These fans are sturdy, move air efficiently (exhaust and blow), light weight, easy installation and best of all the motor is water resistant. It is low profile so I did not have to remove the screen in my window. I am about to replace one that I have had in my kitchen window as an exhaust fan since 2006. The low speed on one side stopped working and I am too lazy to clean the dust and grease off again.The fan stays in my window year round. It lives up to the water resistant claim. The thermostat feature works great too. I hope they continue to make this fan. The only con and it is not much of one is that there is no remote.

I hate beeping appliances

When shopping for a window fan I set a budget of $100 or less. I wanted one that would last the longest and move the most air with the least noise possible. Long-lasting meant mechanical controls (not digital push buttons or remote controls) and air movement without noise meant the biggest blades possible. I shopped a lot and decided this was the one for me, and at a lot less than I expected to have to pay. I have the fan plugged into a Clapper outlet control (that's about 20 years old and works perfectly) so I can turn it on/off from bed if I want without a remote dying or getting lost or consuming expensive batteries. The Clapper Sound Activated On/Off Switch, 1 Each I've had this fan about a month now and I have no complaints. It makes as little fan/air noise as I think it reasonably can (and doesn't beep, I hate beeping appliances!) and moves as much air as I would expect for its size. It's weaker than a 20" box fan in terms of total airflow, but 2 x 8" fans = 16" and 16 < 20, so that makes sense. The thermostat works well. With a thermometer mounted on a nearby wall I've correlated thermostat knob position to approximate room temperature and it's entirely repeatable. The side extension adjustment has been mentioned negatively in other reviews but I had no issues with it. I measured my window, subtracted the fan + left-side extension's width, then extended the right-side as needed and locked that adjustment before inserting the fan into the window, then slid the left-side extension into place and set the whole assembly down and lowered the window on top of it. This fan has allowed me to not use my A/C so far this year when all my neighbors have theirs running daily...what more could I ask for? I have this set to exhaust in my bedroom window and two windows (all 3 the same size) open in the living room so air flows in from a shaded patio and it's perfect for me. I really feel this is the best window fan on the market that's <$100.

It works great of course

All Holmes products are my choice. I have their heaters & fans throughout my house to comfort me & my family during the 4 seasons in NYC. My 1st HAWF2041-N Twin Fan was purchased approximately 14 years ago. The left fan stopped working after I cleaned the fan & probably got too much water in the electrical motor on the left side. No problem, I am still keeping the half broken fan for my personal use in the living room because the breeze from the right side is strong since you can utilize the low, medium & high features. I put the new fan in the back of my house near the backyard, where it is much hotter. It works great of course. I hope this new fan lasts another 14 years. If not, I will be ordering a 3rd one down the road. I LOVE this fan!

Excellent fan

This fan has been running 24/7 for 5 years and has just now started being a little finicky. It turned itself off a couple of weeks ago but came back on later. It turned itself off today and I cut the power off to it. I will try to turn it back on later but I ordered a backup. I use it for a smoking room and have been well pleased with it.

Buying Two Was a Great Decision

I initially bought two of these units to create airflow across an enclosed porch. They performed admirably last year and cooled my porch by drawing cool air from the north side of the house with one unit placed on Intake function in a north window and pulling out warmer air with the matching unit placed in the south side window of the porch on Exhaust. Recently, we used them for a renovation project to pull dusty air out of a large room as we installed new sheetrock. The units clean easily and for the sheetrock dust use required only daily vacuuming to keep them functioning well. When the job was done we restored them to their original positions and purpose. Couldn't be happier with the product(s)!

Great fan

This is a great fan for my purposes. I live in an apartment with a gas range/oven and no outside exhaust fan. I was tired of smelling gas and fish and other smelly foods 3 days later so I bought this fan to exhaust the smells out when I cook. It does a good job. The fan itself is great, but I am short, so the only downside to consider is where you are putting the fan and if you can still reach to open the window behind it. My only kitchen window is above the kitchen sink so I have to get a step ladder to reach across the sink to open the window behind the fan and then to close it again. The fan blocks some of the light coming in but not a big deal. As you can see in the picture, it takes up about half of the lower window. Yesterday it was breezy outside and I had the window open but the fan was not running, and the breeze had the blades turning as if it was on. This fan did not come with a remote, but for kitchen use only, I didn't feel that was a deal breaker. It does have a control switch for each side and can be both intake, both exhaust, or one intake and one exhaust which is a very nice feature. Other fans I looked at were not reversible without physically taking the fan out and turning it around. I have not tested out the temperature switches since I'm using it strictly for exhaust purposes. My apartment has central air, so other than exhaust, I probably will not use the fan. The fan is not extremely loud. In fact, when I walk into the next room, I can hardly hear it running. The pullout section is OK and given the size of the fan is sufficient, but if the fan were any stronger, it would need something stronger to keep it from falling over. For the price and functionality, it is a very good fan. Just take it out of the box, position it in the window, plug it in, and turn it on.

without question the best model of Holmes twin fans ever bought

without question the best model of Holmes twin fans ever bought. The first fan lasted 5 year'ish, and that's summer and winter! This was a replacement. The other finally gave out, it was the "reverse" switch that gave out and when it went, the fan would not turn on anymore. Anyhow, i found that the new fan made a small click like noise. It's as if the blades were not balanced, and they weren't, they are just plastic. But... after a few hours of running them on high... continuously... the noise went away and i'm now very pleased. It's been a month or three... and once again... i hvae them going all night, every night. I hook it to a remote control on/off unit. :)

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