AprilAire E080 Pro 80-Pint Whole-House Dehumidifier + Model 76 Wall Mount Control, Ideal for Basements, Crawlspaces, or Whole Houses up to 4,400 sq. ft.

I recently improved the insulation and sealing of my northern NC home. I contacted with an insulation specialist who removed the insulation between the ceiling and the attic, then sprayed a thick layer of open cell foam under the roof, on the gable ends, and between the floor and the top of the sealed crawl space. They also installed an energy recovery ventilator (ERV) in the crawl space. The ACH50 blower door test result was about 2 after this work. For context, a passive house is required to get below 0.6. anything below 5, and they recommend an ERV. Below 3, you definitely need an ERV. A typical untreated American house might be in the 8-10 range. I was happy with this result. To get better, I think I'd probably have to take off all the siding and re-wrap / re seal, which would be rather expensive. The side effect of this enhanced sealing was that the humidity level in the house went way up (around 65%), so I purchased the Aprilaire unit. After initial install, the humidity dropped fairly quickly to about 50%, but with the unit running 24/7 it seemed to stall out at that number. Over the next 3 weeks, however, the humidity continued to drop to as low as 40% as well the dampness that had gathered in the house sponged out. If you're shooting for a significant drop in humidity, be patient. Don't assume that the initial stall out humidity level will be all you're going to get. As one of the other reviewers commented, the 'up to 4400sq ft' statement is probably for a relatively dry northern zone. If you're in a really humid southern USA environment, you will probably need a bigger unit if your house is over 2000 square feet of conditioned space. It's probably about the right size for my well sealed 1500 sq ft home to control between 45% and 50% in the main living space. For a 3000 sq ft place, or perhaps smaller if it is less well sealed, I think I'd want to purchase a 140 pint per day unit instead of this unit's 80 pint per day capability. My next issue was that the company that installed the dehumidifier and model 76 controller (not the same as the company that did the rest of the work), set and wired the unit in remote mode. This means that the system was controlling to the humidity level at the unit in the crawl space, not the panel in the living space. This meant that the controlled humidity reported at the panel was about 55% while the actual humidity in the main living space was down at 40%. This meant that the dehumidifier was burning a lot of unnecessary energy. After swapping a few emails with the extremely helpful tech support people at Aprilaire, I was able to rewire the stem and set the E080 in 'external' mode. Reconfiguration was an initial problem until I was told to press 'mode' a couple more times after disabling remote mode and enabling external mode to get to 'done', where the unit writes the changed configuration to non volatile memory. Now it's controlling on the humistat in the model 76 controller. The humidity reported by the model 76 matches reasonably closely the level reported by my Nest thermostat, and the dehumidifier will cycle between 46% and 50% (burning a more reasonable amount of energy that the previous configuration).

Got this when my old commercial grade dehumidifier, that was sold by the basement company, finally died. This Aprilaire is smaller, it’s mightier, it’s less expensive. I am attracted to the information that it is American made and it is repairable by the consumer with support from Aprilaire. My old one had to be serviced by the company who could not come to my house for over a month during the most humid New England summer on record to even just pronounce it dead. This dehumidifier went right to work and got the humidity levels down quickly. I don’t find it to be loud. It is quieter than my old one. It is set up better for my situation and I am hopeful it lasts a very long time. My only complaint is that i also ordered the remote display which did not come with wiring to set it up, so that’s a project for later. Right now my house has dried out and feels and smells so much better!

Previously burned up 3 large dehumidifiers purchase at retail stores. This does the job without complaint for a standard 2 story family home. Easy connecting plastic pipe to the drain. Intake ducting parts available at home improvement store to draw moist air from the most humid part of the house; and direct the dry air to the HVAC intake. Runs quiet, easy air filter change. I expect this unit to last a very long time.

Easy self installation. BUT... this unit has been running for 48 hours with a setting set at 45% humidity. House is 3000 soft and it cannot get lower than 53%. Return-to-Return basement install. The unit reads current humidity 53%. First floor reads between 53-57%. Second floor reads 63%. Before buying this, I was using a $350 plug in dehumidifier. I had it sitting in the kitchen main floor. It had each floor below 45%. It was constantly draining water into the kitchen sink. As of right now, I am extremely disappointed in this new unit and myself for spending over 2k on it. Another crazy thing...today was 41% humidity outside!! Why tf is my interior unable to get below 53%??? Bet that $350 unit would turn the house into a dry desert 🏜 I'll give it 5 more days with monitoring and turn the unit off and try my $350 unit again. If the cheap unit works better....I'm returning this $2k 80lb paperweight. But if something changes for the better.. I'll update this review.

Extremely quiet and does a great job keeping the humidity down in my crawlspace. I added their external controller which I can use to remotely monitor and control from my phone. My son does hvac and recommended Aprilaire as being the best available. Have had it for over 1 year now and am completely satisfied.

Ordered the E080 after giving up on numerous Big Box dehumidifiers. As per previous reviews the product was shipped upside down so let it sit for at least 24 hours. Delivery guy said the shipping label was installed on the bottom which explains why it was shipped that way. Easy install and works like a charm. Extremely satisfied with the purchase. Much quieter than I anticipated given the size and capacity of the unit.