Products below were checked on Amazon on October 12, 2026. The old page listed a dead product page and an AprilAire 1870 that now has too few ratings to rely on, so both were dropped. Specs come from Amazon listings and are maker claims.
A whole-house dehumidifier dries every room at once. It costs more than a portable unit, and it only makes sense in the right home. Here is how to decide, what it costs and four models to look at.
Table of Contents
What a Whole-House Dehumidifier Does
A whole-house dehumidifier is a large unit that connects to your ductwork, or sits in a basement or utility room and dries the air for the whole home. It removes moisture from every room, not one. Most drain by gravity or pump to a floor drain, so there is no bucket.
Do You Need One?
You may if the whole house feels sticky, windows fog, musty smells show up in more than one room or you have several portable units running. Measure with a hygrometer first. If one room is damp, a room unit is cheaper. Read best dehumidifiers for damp homes for the middle ground, and check size in how to choose the right size dehumidifier.
Looking ahead, whole-house dehumidifiers are moving from a luxury to a normal part of a tight, new home. Modern homes are sealed well, and that traps moisture. Smart controls and ducted installs are common now. The catch is price. A ducted unit with install costs thousands, and it only pays off in a home that is humid all year.
4 Dehumidifiers for a Whole Home or a Wet Zone
Prices and ratings were checked on Amazon on October 12, 2026.
Price on Amazon: $1,769.99 | 4.8 stars from 131 ratings (checked October 12, 2026)
The AprilAire E070 Pro is a 70 pint whole-house unit sold as a bundle for homes up to 2,800 square feet, per the listing. It has a 4.8 rating from 131 ratings.
Price on Amazon: $2,280.40 | 4.8 stars from 97 ratings (checked October 12, 2026)
The AprilAire E100 Pro is a 100 pint whole-house bundle for homes up to 5,500 square feet, per the listing. It has a 4.8 rating from 97 ratings.
Price on Amazon: $1,769.99 | 4.4 stars from 251 ratings (checked October 12, 2026)
The AprilAire 1850Z Pro is a 95 pint unit for crawl spaces, basements and whole homes up to 5,200 square feet, per the listing. It has a 4.4 rating from 251 ratings. See our AprilAire 1850 review.
Price on Amazon: $499.36 | 4.2 stars from 1,222 ratings (checked October 12, 2026)
The ALORAIR Sentinel HD55 is not a whole-house system. It is listed for 1,200 square feet and is a cheaper way to dry one wet area. It has a 4.2 rating from over 1,200 ratings.
The risk to watch is buying one for the wrong reason. A single damp basement does not need a whole-house system, and a cheaper room unit can fix it. A badly sized or badly ducted system can also leave rooms too dry or too damp. Expect more sales pitches that bundle a dehumidifier with a ventilation upgrade. Measure humidity first, then get two quotes.
Cost and Installation
The units above cost about $1,770 to $2,280 on Amazon, and that is before installation. Installation depends on your ducts, power and drain, and it often needs an HVAC pro. Get two quotes and ask what is included. The AprilAire bundles on Amazon are sold as complete kits, per their listings, but your home may still need extra parts.
Ducted or Free-Standing?
- Ducted. Ties into your HVAC. It dries every room evenly and is hidden.
- Free-standing. Sits in a basement or utility room and dries by itself. Easier to install, less even.
For a tight, large home with fresh air needs, look at a ventilating model like the Ultra-Aire 70H. For more models, see our guide to the best whole-house dehumidifiers.
Keep It Running Well
- Change or clean the filter on schedule.
- Set humidity to 45 to 50 percent.
- Check the drain and the pump once a year.
- Seal leaks and use a vapor barrier in a crawl space, or the unit fights a losing battle.
FAQ
How much is a whole-house dehumidifier?
The units on Amazon run about $1,770 to $2,280, before installation.
What size do you need?
Match the rating to the square feet of the home, and size up for a very humid climate or a wet basement.
Is a whole-house dehumidifier better than several portable ones?
For a big home, yes. One drain, even drying and no buckets. For one damp room, no.
Final Word
If the whole house is damp, a ducted AprilAire is a strong long-term fix. If only one room is damp, save the money and buy a room unit.
What happens next: expect more units that tie into the HVAC system and report their own humidity. For a large home in a humid climate, a ducted dehumidifier is a sound, long-term fix.
Related Guides
Keep going with best whole-house dehumidifiers, AprilAire 1850 review, Ultra-Aire 70H review, how to choose the right size dehumidifier and best dehumidifiers for damp homes.
Is it better to use one whole-house dehumidifier or put one in each room where needed?
Hello!
It depends on how many rooms have moisture problems, how big the area is, etc. Whole-house dehumidifiers may be more expensive at the beginning when you need to install them, but then, by the time they pay off, also less maintenance is required. It depends on the model for portable dehumidifiers but can be cheaper and even a lot more expensive than a whole-house dehumidifier. You will need to empty water every day from portable dehumidifiers – that’s a lot of work if you have them in many rooms. But every situation is individual, and without knowing more details, I can’t give you an exact answer.