Hessaire MC37M 3100CFM Evaporative Cooler

I waited until the end of summer to leave my review, so I could have an idea of how this evaporative cooler would hold up after months of use. I live in So Cal, and specifically bought this for work. I work in a large outdoor booth without any kind of cooling. After several summers of suffering from sweltering heat, I finally decided to take the plunge and buy a portable swamp cooler. Initially I was hesitant, as a few hundred dollars is a lot to spend on something I’d likely only use for 3 or 4 months. But I am sooo glad I did! This cooler really does blow out cool air! I was surprised and delighted! The wheels glide across the concrete floor with ease, and the drain is easy to plug and unplug. I don’t have access to a hose, so I can’t attest to how the hose connector works. But it’s very easy to add water manually. And no leaks! You can also add small chunks of ice, although I don’t think using ice made much of a difference. Also, the little window showing the amount of water left in the tank is very convenient. Be prepared for the air flow being strong, and a bit loud. Even on low, which is the only setting I used. Being outdoors a little noise is not a big deal. But I think it might be too loud to use indoors. If I have one thing that’s negative, it’s that the latch on the manual fill door, which is only a tiny piece of plastic, broke after a couple of days. All in all, this portable cooler works great and was worth every penny!

This is a great portable cooler. I debated whether to get a whole home cooler or just a portable cooler. I’m glad I went this route as many reviews had varying ratings. Here’s my situation which may help others decide. I have a 2 story home. The upstairs is approximately 900 sq ft and is basically an open floor plan loft which has a bedroom, bathroom, and livingroom area. The downstairs is about 2200 sq ft that has the livingroom and kitchen centrally located with other rooms located around this central location. I explain this because I get great circulation in my home due to the layout. I live in SW Colorado and our typical humidity in the summer season is under 20% and most of my home never gets direct sun for too long in one location. Due to this, my home rarely gets warm until about 3-4pm in the west side. And it’s only gets a bit warm for me until about 8-9pm when the heat breaks due to the sun setting. So with that info, I bought the unit for approximately 900 sq ft. I placed my unit in the western most room and have it facing at an angle towards my centrally located rooms which is the livingroom and kitchen. On Low Setting, this thing easily knocks the heat out on the main floor. I’ve not had to use the Medium or High Settings what-so-ever even in mid to high 90s. I run a window fan upstairs to just pull heat out of the upstairs, run my ceiling fans (2) per normal, and typically I don’t have to open up any windows downstairs. While it’s recommended to run in front of an open door or window, I never do. When it begins to cool off in the evening, I may or may not open up a window while this thing is running. Due to how dry it is out here, typically I do not get any mugginess in the home from running as I do. Your situation may differ depending on humidity. Installation of the wheels was a breeze. The only thing I’d suggest is DO NOT use power tools such as a drill driver and DO NOT over tighten the screws for the wheels. I just hand tightened to snug and had zero issues with stripping out the plastic. You just have to take care. My wheels were loose within the box as the plastic storage cover was not securely screwed down. It was a non-issue for me and I didn’t have to build any wood base. The only real issue I had was the whole thing is molded plastic and my water storage section has a small area that is a tad warped. It was also a non-issue for me. As for loudness... I can hear my tv just fine with it on Low and I’m sure would hear everything just fine on the other settings. When I set a box fan next to it, I can hear the box fan on low over the cooler to give ya an idea. The only part that I find a bit annoying is the oscillating setting. It sounds like plastic rubbing on plastic with just little creaks. I’m sure a little Teflon spray, chain wax spray, or even a little WD-40 could curb that, but I don’t bother with the setting. All in all this is a great cooler and I waited to pick it up when it had a price reduction. It cools pretty much my entire downstairs, with the central house receiving the most benefit and the hallway and rooms that the breeze is directed towards in my home. I’d say it easily knocks the home temp into the mid to low 70s for about 1500 of the almost 2200 square feet I have in the main level and that’s on low. The remaining 700 sq ft is cooler, but not as noticeable. It could be if I ran it on the other settings, but no one is in those rooms or upstairs until after 9pm and my house is opened up at that point since I get temp drops of 25-30+ degrees when that sun sets. If you have my situation, this thing will easily cool your main level of your home beyond it’s minimums depending on your situation. I’ll end this review with this thought, just take into consideration your home layout, your typical humidity, the rooms that actually need cooling during the times it’s uncomfortable for you. Each situation is different. My cooler usually only gets run on 85+ degree days for about 4-6 hours, due to my locale. Once the outside temp drops into the 70s, my home gets opened up. Your situation may vary.

I have two of these. While I’m very happy with the way the Hessaire cools, the knobs to both units have cracked, and it is difficult to use the controls. I emailed Hessaire to buy replacement knobs, and was told that I must buy the entire control panel. The knobs are not sold individually. See photo.

OK, let's get the basics out of the way. Evaporative (swamp) coolers work best when you live in a dry climate. If you live in an area with high humidity, they don't make the air cooler, they just make it wetter. Got it? I'm baffled by the bad reviews from people living in 80-100% humidity complaining about a swamp cooler not cooling. If you live in Mississippi, don't buy this. It won't work. You need refrigerated air. But for those of us in the desert SW, this unit is a Godsend. It cools VERY well. It holds 10 gallons of water, or you can hook it directly to a hose (recommended). Turn the pump on first, let it soak the pads for about 1 minute, and turn the fan on. The pump moves a lot of water, and soaks the pads quickly. The pad material is very efficient. So efficient, in fact, that I estimate the unit uses about a gallon of water every 15 minutes. See why hooking it to the hose is a good idea? But it also has a gauge where you can tell how much water is in the unit at a glance. If you plan on using it indoors, position it where it can draw in hot outdoor air and exhaust through another opening, like a window or door. I use it in my garage and storage barn, and just place it in front of the access door. Draws air in from the bottom, exhausts it out the top. Easy peasy. Cools the area without getting too muggy. It has 3 fan speeds, and moves a LOT of air. The low speed is usually sufficient. And it works fantastic outdoors. Yard work, wrenching on the car, enjoying the patio, you name it....this unit will keep you comfortable. Build quality seems good. I like that it's plastic and won't rust. If I have any complaint, the plastic seems a bit cheap, and the fit and finish is mediocre. But these are very minor flaws on an otherwise great product. It has locking casters and rolls easily....and when you're ready to move it, just pull the drain plug and let the water out...and then the unit is light weight. All in all, I couldn't be happier with it. My only regret is not buying it ages ago. If you're torn between which portable swamp cooler to buy, go with this one. Excellent bang for the buck!

I have had numerous swamp coolers over the years and after buying this unit and reading most of the reviews here, let me summarize the key points and respond to some of the complaints... I’m pretty sure the guy who complained about the fan and motor missing probably got a unit someone had returned. This has happened to me numerous times with Amazon. Yes, it’s frustrating but Amazon is great about correcting this by letting you return the unit or exchange it. They also run interference with the manufacturers to get you help, if need be. That’s what I like the most about Amazon Prime. Free shipping, free returns, customer service. Some of these bad reviews are 5 years old. There have been improvements to the design, from some of the reviews I read. ‘It’s plastic’. Yes, it’s primarily all roto-molded plastic. Every unit I have found elsewhere in this price range is also mostly plastic. Until you get into the $4-500- range, most are all plastic and even the more expensive ones have a lot of plastic and plastic parts. Every metal one I have had has started rusting somewhere from day one. They are heavy to move around. So, plastic. With this administrations attack on oil, plastic is getting expensive, like everything else. Gas prices go up? Plastic goes up. When parts fail, they are also less expensive to replace. The first, most likely, mechanical part that fails is the pump. Swamp cooler pumps are super cheap and easy to find and replace. If you get 2-3 years out of yours, good deal. Keep the unit out of the direct sun, store it indoors during the winter. Wide and extreme temperature swings wreak havoc on plastic. When u get the unit, open it up immediately and check for damage. Don’t wait until the first hot day to open the box and be surprised that something is amiss. You’ll be mad AND hot 🥵. If it looks good, plug it in and briefly check everything works before filling with water. Open the box upside down. Then u can easily access the panel hiding the wheels and parts, screw the wheels in and then turn it right side up ⬆️ and lift the box away. Keep the box. Cut the bottom flaps off before you turn it right side up and now your empty box can be used as a cover. You can also use a large plastic trash bag over the box to keep it dry and hide it from thieves. VS the $40.00 nice cloth one they sell with Hessaire emblazoned on it. Flatten the box and it stores easily. When u put the wheels on, do not over tighten them and strip the plastic out. If you do, go to hardware store and get the next largest size screw and it will be fine. Open the back panel, look inside and make sure everything looks ok. Give a little tug on on the wire connections and the media, pump and hoses, etc... Stuff comes loose during shipping. Look for cracks where leaks might form. Make sure the float arm moves freely and is not hitting the media. If it is, cut a little of the media away so it can move freely. All swamp coolers of significant size are noisy at highest settings. This one is no different. At low and 6-10 feet from me it’s entirely acceptable and I can have a normal conversation and hear my music playing. Same on high at 20 feet away. If your concerned about hard water there are inexpensive anti scaling dry tablets and wet solutions to add to your tank water. These will make your media last longer. Smell. Yes, at start up you will detect a discernible smell from the media as it gets wet but like others have said it goes away quickly. However, within a few days you may begin to smell a different funk emitted. A teaspoon of bleach or some bactericide for humidifiers solves that. Oil and water do not mix so I’m not a fan of putting essential oils in my humidifier. There are fragrant solutions made for that purpose, however. Keep in mind, people, like me, may be turned off or sensitive to smells. I hate the smell of vanilla and lavender scents. So, if company is coming or you use in a business environment, you might consider that. When your media wears out, buy synthetic media for replacement. Lasts longer, less smell, drys out more quickly when unit is turned off so bacteria is less likely to form. Dump a bag of ice into the tank before filling for parties or personal pleasure and it makes a huge difference. Put a pressure reducer on the garden hose if your going to use that feature for continuous fill. They are only about $5- at Home Depot. You will find them in the plumbing drip irrigation section. This way you don’t have to fiddle with the hose bib to get the flow you want and the tank will fill slower and cause less splashing 💦 which hits the fan and gets expelled onto you if you have really high water pressure. Hope some of this helps others...

My friend/neighbor uses an air conditioner in his 900 sqft mobile home and complains because the monthly electric bill costs him over $200.00 Sure if it's over 85 degrees indoors then instead of simply using the fan on cooler you need to add water to the unit. It requires a bit of effort and mindfulness but no big deal. It cools an easy 700 sqft + area down by 25 degrees. And my electric bill is $62.00. Pads need to be changed periodically but this is third year using my cooler and all it will need again this year is a good cleaning with vinegar, water, and soft scrub brush. At the end of next summer I will most likely replace the pads after giving unit a complete bath which btw utube shows the complete video cleaning and pad swap-out instructions.

Was really excited to get this and wow what a massive failure this swamp cooler turned out to be! For reference I live in the very dry desert climate of California. This should have worked for my area according to the manufacturer. For starters my package should have been delivered within 2 days since I have Prime, took 4. Normally I don’t gripe about shipping speed but for this item arrival time was a big factor in why I selected it. Upon unboxing the product, I was disappointed immediately. CHEAP plastic unit, flimsy, company logo is crooked, and overall it looks cheap. Still I could put looks aside if the unit performed well. I filled it up per the manufacturer instructions and got everything set up. Turned it on and was yet again immediately unimpressed by the fan speed. Not powerful at all. Total dud! It’s also very noisy. If it was powerful I would expect a noisy unit and be fine with it. But, it’s not powerful and noisy which to me is unacceptable given how much I paid for this unit. I’m reasonable and there has to be a trade off somewhere. Powerful and noisy if fine, but again this unit is weak and noisy, that’s a big NO for me. I put cold water in the unit and still the temp was blowing out lukewarm air. So utterly disappointed in this product. I even tried ice after reading some reviews. Even with the ice it wasn’t that cold. It made a slight difference, but nothing to write home about. I cannot recommend this product. It’s cheaply made and performance is terrible. Grossly overpriced for what you are getting. I paid close to $500 bucks for this unit and its garbage! Returning this immediately!

This is easy to set up and moves air good. The evaporative cooler does add humidity to the air, so if you’re in a humid climate it works better if the area is well ventilated so the humidity doesn’t continue to build. I will probably be buying a second one for the other half of my workshop.

Me gusta mucho porque enfría muy bien el área en dónde puse el aparato, la entrega fue rápida, podemos pagarlo en mensualidades y el precio está muy bueno.

It's got some noise and uses a fair amount of water per usage, but overall I am very pleased with how it cools! My only beef is that there is no shut off when the water runs out and therefore cannot be used at night. I wish I had know this and would have purchased the other model. I find the directions are lacking, and they need to be more specific on how it is used for indoors. We didn't realize you needed to use it with an open window and the house got so humid it was like a swamp, LOL! Then I had to do some research online and re-read the minimal instructions before I understood how to use it properly. ;)

Pensé que no podría enfriar pero hasta frío me dio, aguanta más de 6 horas con el tanque lleno de agua en velocidad baja y esa velocidad es más alta que cualquier ventilador convencional, excelente compra

It came to me so fast that made me happy. I live in housing and we are not aloud to have air conditioners. So I bought this it keeps me and my kids cool. I fill ot once a day with my hose and turn it off at night. Its so much healthier and more economical then an air conditioner. I will have this for years to come as it is deffinately a quality product. Thank you. I'm all about quality and economical products and this fits both those. From a mom in Canada.

No me deja escuchar la tv