Cosmo QB75 Range Hood

After reading reviews about installation I felt confident in my abilities to install. The hood is a good sized hood and it did take me 3 people to install it. For anyone looking at installing it themselves, I offer up these considerations before starting. 1) I hoped maybe I could get away with only mounting it with 4 screws to the underside of cabinet. Once I got it open and lifted the unit and re-read the directions, I realized it needed to be installed to wall and under cabinet for my application. 2) I needed to remove (4) 3" tiles from my backsplash in order to mount the 4 screws to the wall. I had the tools to do it and could not tell until I removed my old hood that it needed to be done. The template they supplied help Identify with 4 tiles to remove. 3) I read other reviews and found it common to install the 8” duct to a 6” exit duct via a reducer duct found at my hardware store. That was an easy job, again just a little time and tape etc. 4) I installed the 4 of the (hammer in) screw mollies supplied in box. Lifting the unit into place and attaching to the wall was a task and I used stacked boxes to hold it near the position until we were ready to lift and attach. (Use boxes that allow access to all the screw holes on rear and upper holes.) Once we installed the 4 rear screws slightly tight, we adjusted the elevation with more boxes until it was tight up against upper cabinet. We then installed the 4 upper screws that pulled the hood up tight. Once installed on upper cabinet, we tightened the rear screws. 5) Now the electric hookup. I had a hard wired hood and this unit had a plug. Some reviews had people cut the plug and wire it into a junction box. Instead I installed an outlet in the upper cabinet area where the ducting came up. Again, I have experience in that so it was just a couple dollars and more time. Plugged in the fan and it worked. 6) Ducting install was pretty effortless. I installed the 6” portion of the 8”-6” reducer to my existing duct. Had to tweak and bend to make it fit but eventually taped it in place. I used the flex duct supplied with the unit to connect hood to the 8” duct reducer. Easy! 7) Loudness. The unit is loud but every review said that. I wanted good suction and moving air makes noise. Even at low setting it makes a lot of noise. 8) What I didn’t really anticipate is the size of the unit. It sticks out from the wall enough to encompass my whole range, love it. I ended up having the minimum height from range to hood per their spec. I’m 6’ tall and it is easy to smack my head or turn on touch sensitive buttons on the front of the hood if I’m not careful. Gotten used to it now though and I’m good. My plan was to remodel the kitchen in a few years and use this hood when I do. I will fix some of these issues then. 9) I give this unit 5 stars so far. I think I’ll like the baffled, removable, washable filters. I hated my screen on the last hood. It was always greasy and dirty looking. I will remodel with an 8” duct instead of a reducer as it may be contributing to more noise and less evacuation but for now, it works great.

Pros: - Stainless steel finish design that looks fantastic - LED light is bright with just two bulbs. - Noise level is not super silent/quiet, but with 500 CFM or higher I don't know if you can find one that is super quiet. - Smoke suction is really good and does the job. - Not super lightweight but for a dual fan appliance it was not that awkward to install. Cons: - The touch buttons on the control panel is hard to find in the dark. So, if I just wanted to turn on the LED lights from the range hood in the dark, it's not that easy. However, on the other hand I just kind of have a mental memory of where the button could be located on the control panel. I have been able to pretty much turn on the lights when I needed it. - The clock does not display while the fan is running for the range hood. Not a deal breaker, but just would have been nice to have more visual data to see while in use. - The back panel screws, the screws provided and instructed for the back of the range hood, are useless. It is the most confusing and difficult diagram to follow, from an otherwise pretty simple installation. The back screws are there to help hold the range hood while you screw in the top screws. - The screws that goes on the top are the weakest looking screws, but they do the job. They kind of just stick out straight from the top. So if you drill the screws upwards and they poke through the cabinet panel, there are four sharp screws sticking out. Very awkward. Would have been nice to have some kind of end-screw caps to cover them. Summary: I've been using this for a little bit more than a month and have been very impressed. Before this range hood, we had a microwave under the cabinet combo vent appliance. It was one of the worse smoke venting appliance I have ever experienced. The smell of scrambling eggs fills up the entire home. With this Cosmos COS-Q57530, cooking curry, steak and many other food items, the smoke do not go beyond the stove. I have had to use level 2 to cook and nothing higher. The noise level for level 2 fan is not super quiet, but it isn't that crazy either. I can't describe the noise level, but it is better than the over the range (or under the cabinet) microwave vent that was originally installed. Oh the timer to shut off the range hood is pretty awesome, I have learned to use that lately. If I cook something that smells pretty strong, I will set the timer to shut off 5+ minutes (you can configure it for 1 minute or higher). I can go eat and not worry about having to get back up to turn off the range hood. The installation diagram paper that they provided was pretty good, I had to ultimately ignore the back diagram because it just didn't make much sense. I drilled so many holes in the back of the wall and none of them matched up to the actual holes on the range hood. If they were required I would have been really angry. I used a small hand lift to raise the range hood up (don't buy the hand lift they sell here, it's a horrible design). The diagram hole for the power cord is accurate, so don't think drilling a smaller hole will work out (I found out the hard way). I had to widen or cut a circular shape hole since the over the range (under the cabinet) microwave vent had a square vent and Cosmos is a round 8 inch vent. It comes with a flexi-duct adapter, which I plan on replacing because I read that it is not recommended for safety/long term use. I can see that the creases from the flexi-duct could potentially catch grease and build up long term enough to potentially catch fire. Furthermore, the flexi-duct is not smooth, so air travel going through it may just cause more noise compared to a smooth/solid duct. My duct goes straight up in the ceiling so not difficult to swap out. Overall, I do recommend this range hood. I haven't had any issues (yet), but I have read where another customer had the fans stop working after a month or two...? I suppose we shall see, because the previous reviews seem to be good overall. If I run into any major issues, I'll be sure to add it to my review here in the future. I use my range hood every day for slightly over a month and have had no issues with it so far. Update 06/21/2021: Installed this last Oct 2020, and we have been using this on a daily basis (2-3 times per day). No issues up to this day. I have not had to turn the fan on past level 2 (out of maximum of level 4), as an example, for either steaks or curry cooking. Still need to get rid of my flexi-duct, but I have to go and find the right fitting.

Overall this is a really great unit and didn't disappoint. It's not easy to install, but then again, no serious range hood is, due to the weight of good equipment. If you don't have a lift, you're definitely going to want a 2nd person for this, maybe even a 3rd. I'd also recommend a flexible drill bit extension, as the mounting holes located inside the unit are almost impossible for anyone with averaged size hands to get to. The accessories (screws, anchors, flexible ducting, etc.) included with this unit are almost worthless. The concrete anchors look decent, but I didn't use them. The screws for mounting under the cabinet are laughably useless. They're simply not the right tool for this under-mounted style of unit. You're going to want to ignore those and get some threaded bolts with washers (underside/inside unit, as well as top side) and nuts. The drywall anchors/screws are decent, but you can find better at your local hardware store. The mounting brackets I just don't understand at all. No idea how these could be used/are intended to be used, and the install instructions don't tell you anything about them. Lastly, the flexible ducting and the whole top exhaust situation... there are two problems with this. First is that the exhaust port isn't actually 8" even though the install instructions call for 8" ducting for this unit. It's more like 7 3/4". The included flexible ducting fits very tightly around the exhaust port, but it won't fit to any standard 8" ducting, crimped or otherwise. The second issue with this is that most state/county/municipal building codes require smooth-walled ducting for cooktop range hoods. The reason being that exhaust from cooking is going to contain grease, which will accumulate on the ridges inside of flexible ducting, representing a fire hazard in your home. The ridged interior also creates turbulence that will affect the efficiency of your range hoods exhaust fans and create noise. For this reason, I would recommend using smooth-walled, galvanized steel round ducting and getting a pair of metal duct crimpers ($20-$30), and some metal snips so you can cut your ducting to length and crimp the cuts to make male ends. The crimpers also came in handy to attach the 8" metal ducting to the range hood exhaust, as I was able to create about 5" of crimps along the edge of the ducting to allow it to fit the exhaust more snugly and create a seam that could be sealed with foil tape and the included steel worm clamp. So yeah, in conclusion, I would recommend it. But be aware of the non-standard size of the top exhaust opening and the bad accessories.

This is going to be long review, but I think it is important if you are going install this yourself, that you read it. First, I recommend you take the time to research what kind of connection you currently have. Even if it means removing your current range hood and reinstalling it. You cannot do this half way if you want the great suction this fan is capable of. Second, this range hood is heavy. It is easily 3x as heavy as our old one. Our old one was not one of those white. 20 year old hoods either. This one needs at least 2 strong people and a third normal person to install, unless you have a jack. Lastly, buy/order the right kind of duct tape (foil kind) for attaching it. You do not want to do all the work of installing this and then hear it whistling or leak air. Okay, now let's talk about the width. You need to have 24in clearance between the stove top and the hood. This is much wider than my previous hood so we ended up being exactly at 24in after we installed it. This meant my 6 foot 3in husband loses sight of the food he's cooking when he is standing in front of the stove top and looking down. He said it is worth it since we will eventually be getting new cabinets in the next couple of years. When installing this range hood, the template that comes with it works great to mark the holes and make your pilot holes. Remember to account for any tile and move the template up a little. This range hood also had its holes closer in then our previous range hood so we had to add 1 1/4in plywood to the underside of the cabinet for the new screws to be attached to. This meant a trip to Ace, cutting two different pieces, gluing them together, then screwing them into the underside of the cabinet with more wood glue. This was for safety and for reassurance it wouldn't fall down on us while we were cooking a month from now. I personally would rather go beyond the standards then meet them. We originally had a rectangular ducting attachment but it was easy to remove the cover from inside the cabinet and disconnect the rectangular opening from the main vent. This was about a foot above from the new range hood vent. We did this before attaching the range hood to the underside of the cabinet so we would have plenty of room. The circular ducting that comes with the range hood fit perfectly to both sides of the range hood and the home ducting. The last part of the installation you should take into consideration is the plug connection this range hood comes with. Mine needed to be wired in, so I cut the plug off, strip the black covering back 5 inches, and made sure not to cut any of the cables inside. With the house power off, I attached them to my home connectors easily with a wire twist thing (don't know what they're called). Now about the product itself. I love the range. This range hood has two fans and a lot of power. It was less expensive on Amazon than the big box stores and is much nicer. It looks professional and the filters are so fancy looking. Overall, I came across more obstacles than I realized in changing out a range hood on my own, however, this was completely worth it. The noise is there when you have it on anything more than the first level, but I don't really care about noise when I'm cooking, I want the suction power and light. The light is very nice. I like having LED instead of halogen bulbs as well. This range hood is awesome and I'm so happy with it. Please just remember to ask for help because it is very heavy and you probably should have 3 people. Buy it and enjoy having a wonderful and beautiful range hood!

Nicest range hood I've ever had! I love the rounded corners; especially nice since this hood extends 22 inches out over the range. I figured I'd bump my head a lot since we had to install it 25" clearance over the range. But so far it's not been a problem. I like that the control panel goes dark when it's turned off. We have a great room floor plan, so having the LED clock blazing out the time all day and night can be annoying. Having a light on each side of the hood is like having a spotlight for each of the front burners (don't much use the back ones). But best of all is the great, wonderful CFM. It really clears out the steam and odors, I mean really, really clears them out. We replaced an over the range microwave, so maybe this is not surprising, but I can't remember any hood in any house (16!) I've ever had being as effective as this hood. I haven't had to use the highest setting, but the noise is fine on the lower settings. It is very heavy, so it took two of us using a cooler as a support to get it installed. The existing duct is 7 inches, so we bought an 8"x7" adapter which worked out well. The cabinet was already reinforced for the microwave, so all we had to do was enlarge the vent opening from a rectangle to a circle. All in all, straightforward to install but taking some strength and maneuvering in tight spaces. Hey, Cosmo, consider a bracket to support the bottom edge. That would be much more useful than the brackets that came with it.

After living in a home with the previous owner's microwave combo hood for over 8 years, the filters were very clogged and a lot of residue was seen on both the vents and the exterior of my cooking space. Something more powerful was needed, and CFM along with price was the biggest factor I considered in selecting a new range hood. This product is at the top of the air suction power, and may present some loudness at its highest settings, which are only necessary when the cooking is very messy. Otherwise, I can use it at the 2nd and 3rd settings with ease for sucking all the vapors above the stovetop. The installation on my specific kitchen required some modifications because the cabinet was thicker than the screws provided and the previous range hood/microwave had a rectangular duct. Some extra screws and cutting were in order, but the overall install time was reasonable. Some strength is required due to the weight, but with more than one person and appropriate supporting materials it can be easily installed in <5 hours. The suction power as mentioned before is extraordinary. You can feel the raw power before you connect the duct, and it seems that the "vacuum" power underneath is lacking, but it is still more than my previous hood. The remote works fine and the product has a great steel finish that makes my kitchen look professional. The baffle filters seem to work well and look durable enough for years of use, and hopefully the product keeps my kitchen spiffy for years to come. This is the best range hood for its power at this price, and I would say everyone should be it unless they are willing to fork over >$1000 for similar power at other brands.

I purchased this range hood to go over a range that has an overhanging cabinet. There was no duct to connect it to so I took advantage of the ductless feature. For installation, two strong men and one other person are required to install this extremely heavy range hood. Also, the cabinet that the hood needs to fit under has to have a hole cut into it to allow attachment of the connection point that the duct would connect to if one were present. So that means loss of the storage space where that hole is cut, and a baffle to be installed to keep stored items from falling into the fan blades. As far as performance, other than the lights it worked OK. My wife hates it because she bumps her head against it when cooking. About 2 months after installing the hood the two LED lights burned out. Without lights it is very dark under the hood. Cosmo sent two replacement lights. The instructions for replacing the lights were for an older model. I had to figure out how to remove and replace the lights, and I was able to figure it out partially. It is only possible to get one hand under the hood position to disconnect and reconnect the lights. If the wires were long enough to insert them and connect them before actually mounting them it would have been doable. But it was impossible. And the sharp metal edges cause abrasions on the wrists. By the time I had reached the conclusion that the hood was not going to work for me, it was too late to send it back for a refund. So I am out the whole $340 for this unit. I will probably trash or recycle it. Also, it is not easy to find a range hood for my situation, and now I need to find one that is built well and works for my situation. Not an easy task. No I don't recommend Cosmo range hoods! A lot of what they say in the manual is for older models and not applicable to what is actually delivered. They are very heavy. Maybe that's good for some, but installation is a horror story.

This hood range is well made. It's a simple design which makes it easy to install and use. The stainless steel version is truly stainless. Fairly scratch resistant. The display and touch control is simple and easy to use but can be a bit sensitive. The unit works well and has the prescribed CFM's however on the highest level (4) it is very loud. The loud blower sound is the only reason I'm not giving this hood range five stars. The lighting on this unit is prefect as it dose hang over. The unit fit perfectly in my space above the stove. Overall the Cosmo is a great value.