AprilAire E080 Pro 80-Pint Whole-House Dehumidifier, Energy Star Certified, Commercial-Grade for Basement, Crawlspace or Whole House up to 4,400 sq. ft.

I ordered and installed one on these units in my house to complement my Aprilaire 700M humidifier. In the Chicago suburbs we get bone dry winters and hot humid summers. The undersized AC unit game only goes so far here and does not work for the cool humid late spring and early fall since it is too cool for an AC call. The only option is to run the AC until your house is frozen. Between AC calls in the summer, the humidity creeps back in while the temperature holds and the AC sits in the background waiting for the temperature to increase to turn on. Then you have to lower your thermostat just to dehumidify your house. I have had this unit for 2 days and already I notice a difference. The first floor is nearly as dry as the basement (which I have been using an oversized stand alone unit since I moved in) while the upstairs is comfortable, which is up from unbearable. Running a dehumidifier in the basement does help a lot, but it has been a losing battle on the first and especially the second floor. I selected the E080 because it was the most quiet and power efficient unit while having different ducting options as well as a filter access door on both sides. The E070 was more than enough for my 1364 sq ft townhome, but I have extremely limited space to work with in the basement and the filter access on both sides came handy. I had to duct this unit to the Aprilaire recommended return to return vs the more appropriate return to supply because the pressure differences while the HVAC fan is running causes air not to flow through the unit. I am using a Google Nest to control the unit via a relay. I am using a cam rotary switch to select between the humidifier and dehumidifier relays and reprogramming the thermostat for the device selected since the Nest supports only one device at a time. I am running this unit as a stand alone with the HVAC fan active in the Nest setup. I originally ran it return to supply with the HVAC fan not active but AC calls kicked on the fan regardless causing air not to flow through the dehumidifier, which was why I was forced to change it to return to return. It was a pretty difficult and tricky install that required a lot of planning ahead of time, along with a ducting change, but it was all well worth it in the end. The unit is extremely quite. The AC is running less and the house is very comfortable with the thermostat set higher. The temperature difference between the first and second floor is now half. I have never lived in a house this comfortable during this time of the year. I am looking forward to seeing how this unit performs when the summer gets hot and muggy. This is seriously like adding a dehumidifier in every room. Depending how this unit works out in the long run, I might just look to replacing my 50 pint standing unit with the E070 for my basement (there is no ducting in the basement so a separate unit is needed).

Bought for a new house that was air tight but held in the humidity that wasn’t good for the would floors. Easy install and connection to my ecobee thermostat. Brought the humidity down and kept it there. Has been installed for over a year and is working great!!!

If you have been using consumer dehumidifiers and can’t seem to understand why they run 24/7 and do nothing …purchase one of these and be done with it. I’ve had my unit up and running in my basement and it runs at least 50 percent less than the previous dehumidifier I had and works better . Get a condensate pump to pump water away and never look back to buying the consumer grade machines. This unit took my unfinished basement from 60 percent humidity to 50 very quickly and after a few days it no longer runs more than a few hours a day versus the old units which ran almost constantly.

By recommendation, we purchased the Alor Air unit first. It was incredible loud even though it claimed to be 60dBA. There was no way we could keep that unit. It was measuring around 80dBA while in operation. Granted, yes - this measurement depends on the surrounding surfaces and reflection of sound, but this was still unbearably loud for any circumstance. This unit in our research was one of the quietest models available. It lived up to it's claim of 50 dBA or thereabouts and is SIGNIFICANTLY quieter. We are pleased with the unit. Only negative is that it does not come with the drain tube and wish it did like the Alo-air. Alo-air also gave complimentary filters which was nice.

Took relative humidity from a constant ~75% down to 50% in about a day after installation. Now cycles of/off only as needed. No more condensation on cold pipes/surfaces and clammy feeling basement air is gone. And I will now be able to finally permanently remediate a recurring mold issue. Unit is well built and looks made to last. Easy to install and level. Actually quieter than a room dehumidifier that it replaced. Worth the money. Application: 1200 sq ft partially finished basement in a high water table area. No water seepage issues, but basement has historically been damp even with room style dehumidifiers. Unit could be ducted into HVAC system, buy I chose to run it stand alone in basement. Has also passively reduced humidity in the rest of the house via HVAC cold air returns in the basement.

I bought this after my 6 year old Honeywell TruDry 90 developed a refrigerant leak and spewed oil into the condensate tray and drain. Shame on Honeywell. They should know better and be able to build something that lasts longer than 6 years for that kind of money. My house's A/C system lasted 20 years! Since the reviews were even worse than I expected for a new similar replacement Honeywell unit, I did a hard pass and started looking at Aprilaire. The Aprilaire E080 I chose is a nicely built unit and kudos for being a USA manufacturer. They took the time to really insulate it with tons of Styrofoam panels inside with this particular model. Apparently, the E080 is their only really well insulated unit at this moment out of their product lineup. They also had a beast of a support shipping bracket for the compressor strapped to the backside, which saved my unit from damage since the people who load boxes onto the trucks at Amazon's warehouses can't seem to understand what those large "THIS END UP" warnings printed on the boxes mean. Mine was sitting in the truck on it's backside, compressor on the bottom. I kept the box, support bracket and straps (even though they say to throw them out) if I ever have to ship this unit back for repairs/replacement in the future. A note to buyers. DO NOT THROW OUT those Styrofoam inserts that are placed inside the plastic duct collars for this unit. They are for noise reduction, not prevention of shipping damage, so keep them inside the collars when installing. I also moved the control panel to the front to keep it from getting dusty in my basement and thus scratching the clear display panel when being cleaned. Once the unit had sat for a couple of days, I put it up on my leveling pallet that keeps it off the basement floor, swapped the rear collar to the top of my unit and attached it to my overhead duct to distribute the exhaust away from the unit and out into the room and hooked it up to my drain. It fired right up when I turned it on. Soon it starting dumping water into the drain like crazy. This unit has an interesting method of operation. It doesn't work like my old Honeywell unit did, although I suspect that if I had an external humidity controller like my Honeywell unit did, it would probably be similar. But since this unit has the controller/humidistat mounted on the front, what it does is first turn on the fan for 3 minutes to sample the air humidity. After that 3 minutes, if it detects that the humidity in the room is higher than the set point on the control panel, it then turns on the compressor to dehumidify. Even though my basement was already at 48% (according to my probably inaccurate little hygrometer), this was a test and it ran until it hit 3% below my set point of 53% and turned off. Since the room was already dry enough, it did not need to dehumidify again. What this unit does is sample the air every hour, so you'll hear the fan turn on for 3 minutes during those times. If the humidity is below the set point, the fan then turns off and the compressor stays off until the next cycle. I'm hoping this run procedure works when my basement starts getting really humid in the spring and fall. Winter, it's generally not needed and only sometimes in the summer. If once an hour doesn't work out, I'll purchase the add-on external Aprilaire controller, but I suspect it will work great as currently set up. Now if it lasts longer than 6 years, I'll be a happy camper. Given that my local HVAC company does not know much about dehumidifiers in my area, I probably know more about them than they do at this point. They sold me the original Honeywell unit and weren't even sure how to set it up. THEY had to read the manual just to figure it out. They certainly couldn't fix it when the coils finally sprung a leak a few months ago. It's now deemed non-repairable and has to be discarded or recycled. I've also repaired it on my own at least once, when the defrost thermostat failed, which was a known issue at the time. Research saved me a big call charge, even under warranty, and getting a repair person who probably knew nothing about the unit to even diagnose it in the first place.

Ordered three of the 80-Pint dehumidifiers for our shop. Husband was thrilled with the ease of installation and they are performing exceptionally well!

We need a dehumidifier in the basement, the previous one was much bigger, much noisier but worked about the same and was also more expensive. The previous one would slowly leak out the gas, I found someone to recharge it once. The manufacturer replaced the leaking coil under the five year warranty and sent it to us. They would have repaired it for free if I had sent it to them but I would have to get a shipping box made, pay transport both ways plus insurance, hundreds of dollars. I have been unable to replace the coil as I can find nobody locally that will do it, so the old unit and replacement coil just sit in the basement. The April Air is much much quieter when running, I can not hear it in the upstairs living area at all unlike the old one. It also samples the air every hour to see if it needs to dehumidify. I was genuinely surprised when I first heard how quiet it was. It is also very well made compared to the other unit, after many many months of operation I had almost forgotten it was down there, I use an automatic pump to get rid of the drain water outside so it just sits there and runs. It is also much more efficient regarding electricity use, but that could be due to the problems with the old one losing gas and overworking.