Hessaire MC37M 3100CFM Evaporative Cooler

Why did you pick this product vs others?: I've only owned this for a few hours, and I feel compelled to leave a positive review. Most of the negative reviews here seem to be from folks who weren't 100% certain what swamp cooler is or how it works. I can understand their disappointment. The reality is, I've spent a lot of time wondering how it could possibly be so difficult to make a product that blew a fan through a moist filter to cool the air. I made home made versions when I was a kid, though I was probably risking electrocution. A swamp cooler will not work in a humid climate. An "portable" swamp cooler like this one that doesn't vent will also have limited functionality indoors even in a well vented area unless you're in a large room. I live in Phoenix, and I have a very good air conditioner in my home. The room where I spend most of my time usually has at least one computer and sometimes as many as three computers running. It gets warm in there, and I don't feel like cooling the whole house just to keep that one room comfortable. Since I only need a couple of degees, I figured I would give the ol' swamp cooler a try. My first purchase was one of those tiny desktop ones, and it didn't do anything except spray water in my face. My second attempt was a larger, floor-sized model. Since the price goes up pretty quickly, I decided to go with a budget option that was on sale. It leaked out of the box and made a massive mess, but for the brief moment that it was running, it did make a noticeable difference in the room temp. I didn't want to deal with that kind of mess again, so my third option was this Hessaire model. After talking with a couple of HVAC guys, it seems to be a consensus that Hessaire makes the best evaporative coolers. I read through a couple dozen of the negative reviews, as there area lot of them on here. Most of them were from folks who were purchasing this item for conditions where it would not function optimally. As I said before, I totally get that frustration. The room I need to cool isn't very large, and that's my biggest complaint with this item. It's too big for the room I want to cool. It works too well, and I'll explain why in a bit. I'm looking to cool a room that is less than 200 square feet by a couple of degrees. I had realistic expectations going in. I knew that I didn't have any place to legitimately vent this, but the other unit did just well enough to convince me that this would work since I only needed a couple of degrees out of it. My one window in this room faces the sun during the time of day I need to use it the most (part of the reason why it gets so warm), so I didn't figure a swamp cooler would be able to keep up with that kind of direct radiant heat in June/July when the sun is most direct. I did try it, and it was no good. I experimented with a few different placements, and the one that works best is to have it near the doorway with a second fan blowout out over the top of it. When I first turned it on, the room had a relative humidity of 22% and an ambient air temp of 82 degrees. Earlier, I mentioned that it worked too weel. On my first attempt, I ran it for five minutes on "high". The air coming out of the front at that humidity was 71 degrees. Within five minutes, it had cooled the ambient room temp to 78 degrees. The problem was that it also increased the relative humidity to 65%. At 65% relative humidity, the air coming out of the front was the same 78 degrees as the ambient room temp. So I know not to use the "high" setting. I had to let the room air out a bit before trying it again. On the second attempt, the relative humidity had gotten down to 40%. I ran it on "low" for about five minutes. It didn't have the same dramatic effect. At 40% humidity, the air coming out of the front was 76 degrees. After five minutes, the relative humidity had only increased to 50%, and the ambient air temp had only degreased to 80. But that was actually comfortable for me with the fan blowing in my direction. So then I turned it to "fan only", and it continued to blow cool air for a good 30 minutes. The room remained comfortable for the remainder of the day. I can't wait to see how it performs tomorrow when I have it turned off all night and the relative humidity drops back into the 20s. The reality, though, is that monsoon is just around the corner, and once monsoon hits, I'll typically be starting with 40% to 50% humidity. There are some negatives. It seems that everyone likes to make these types of units with tanks that are hard to fill. I have a large humidifier as well, and those tanks are removable. A removable tank would make this thing awesome. As it is, it's easier to fill than the last one I bought. It has a side door to pour in water. I use a bucket and a funnel, but since I don't have a bucket anywhere near that large, it takes 3-4 buckets to fill it. It looks like I'll only have to fill it every 3-4 days, though. It is bulky. I really do wish they had a smaller size. The dripping water is actually really loud. It's much louder than the fan. I would definitely not leave this unattended. I also like the fact that there is no remote control. Why does everything need to come with a remote control? As long as you have a good understanding of what a portable swamp cooler is and know that you need one, this is probably the best one you're going to find. Of course, Hessaire makes larger models. Much, much larger models. But given the fact that this one is too big for my room, I would only buy one of the larger models if you have a very large area to cool. Or if you're going to use it outdoors.

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.

This is a terrific cooling fan, far better and more effective than I had hoped. Very simple to set up, with excellent instructions. It seems like it will have excellent durability, as well. I only deduct one star because it's a little tedious to keep refilling the reservoir throughout the day. It goes through a tank in about 4 hours. Attaching a hose would be pretty questionable inside the house, though of course it would solve the problem outdoors. We are using it as an assist to our central a/c during a pretty serious heatwave. With outdoor temps of 112F to 117F, the a/c just can't keep up. But this cooler is taking the 86 degree air inside, and cooling it down to an almost comfortable 78 -80 in a large room. It is not the recommended set-up, but it is working for us in this heat emergency.

I love this swamp cooler! It lives in the garage so we can sit outside and be nice and cool. Also very convenient as filling with a hose is really the way to go with this thing. It rolls pretty well on flat surfaces and is so easy to use. For reference I live in the Nevada desert so for dry heat it’s great. Also I bought it in mid 2024 so it’s reliable.

I barely ever write reviews on here, but am writing this one in case it helps someone. I used this evaporative cooler last summer during a long heatwave in southern Alberta and it made the hot evenings more bearable. Listen, an AC unit will get your room cooler than this, but it also zaps any humidity from the air in the process, draws more power, is less environmentally friendly, and frankly sitting in a heavily air conditioned environment makes me feel a bit weird after awhile. With this unit we were able to get our bedroom three, sometimes even four degrees cooler than the rest of the house. Here’s what we did that was so effective: -place the unit in front of an open window so that it’s drawing air in from there and blowing it into the room -leave the room door open and if possible have a window on the opposite side of the house open to create a cross-current -run the unit an hour or preferable two or three before you want to go to bed to cool the room, then switch the device to fan mode overnight because the tank doesn’t hold enough water to run for more than four hours or so at a time You definitely want to live in a dry climate to use this, you’ll appreciate having that extra humidity. You also want to make sure you have that good airflow I mentioned earlier to really cool things down effectively.

My residence is heated using a hydronic system, providing a pleasant and dry warmth. However, a downside to this method is the resulting dry air within the house. Despite trying numerous evaporative humidifiers, including the largest Venta unit, none were able to consistently maintain a comfortable humidity level. Currently, we operate five humidifiers throughout the home to regulate localized humidity, a task that requires constant refilling. This year, our household was heavily impacted by the flu, exacerbating the discomfort caused by the dry air. Surprisingly, I had overlooked the effectiveness of swamp coolers in adding humidity to the air. I can confidently say that my search for a solution has concluded, as this machine surpasses expectations. It achieved an impressive increase from 25% relative humidity to 65% within just one hour for the entire downstairs area. The positive impact on my family's breathing was immediately noticeable. Despite the name "cooler," the air emitted from the machine is only slightly cooler and not uncomfortably cold. Placing the device in front of a hot water radiator improved the air temperature and helped circulate warm air throughout the house. Initially, there was a peculiar odor, but adding a small amount of essential oil to the water quickly resolved this issue. Recalling my grandparents' large cabinet-like humidifier beside the wood stove, I appreciate that this unit produces a similar trickling water noise. The low setting of the fan is quiet enough not to disrupt activities around the house. Additionally, the ability to set a desired humidity level allows the machine to maintain the fan operation while shutting off the water pump when the humidity falls below the specified level, preventing over-saturation of the filter media. Overall, a very positive first impression!

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. ;)

Primero déjame empezar dejando algo claro: esto no es un aire acondicionado. Este es un enfriador de aire. ¿Cuál es la diferencia? Un aire acondicionado normalmente tiene un respiradero para aspirar el aire caliente y reemplazarlo con aire frío. Cuando usas un aire acondicionado, cierras la habitación y tienes una habitación muy fría. Con esta unidad, que es un enfriador de aire, obtendrás una sunana si cierras todas las ventanas y puertas. Con esta unidad es necesario dejar una puerta o ventana abierta para que circule el aire. Esta unidad se utiliza al aire libre. Como un garaje o un patio. Esta unidad enfría el aire a mi alrededor. Es como un ventilador, pero con aire frío. Coloco la unidad junto a una ventana abierta o junto a una puerta abierta y hace un gran trabajo al enfriar la habitación. También funciona muy bien en el patio.