Quick answer: The AprilAire E070 Pro is one of the best crawl space dehumidifiers for homes up to about 2,200 sq ft. It’s compact enough to fit through most crawl space doors, has corrosion-resistant aluminum coils and drains through a hose instead of a bucket. It’s a big-ticket unit, so it makes the most sense in an encapsulated or sealed crawl space where it can run for years.
This AprilAire E070 review is for homeowners who have a damp crawl space, a musty smell upstairs or a contractor quote in hand and want to know if the unit is worth it. AprilAire is a US brand known for whole-house air quality equipment, and the E070 is its compact crawl space model.
Our review is based on manufacturer specs, building code guidance, expert advice and patterns in verified owner reviews. We didn’t install one ourselves; we focused on what the unit is built to do and what owners report after long-term use.
Who it’s for and who should skip it
Buy it if you:
- Have a sealed or encapsulated crawl space, or plan to encapsulate
- Need a unit short enough to pass through a small crawl space access door
- Want a purpose-built machine that can run constantly in damp, cool conditions
- Have a way to drain water: a floor drain, a gravity line to the outside, or a condensate pump
Skip it if you:
- Have a vented crawl space with open vents and no vapor barrier; fix the envelope first
- Have standing water or active leaks; a sump or drainage fix comes before dehumidification
- Have a large home or crawl space beyond its rated coverage; the E080 or a bigger unit is a better fit
- Need a basement dehumidifier on a tight budget; a portable like the Waykar 80-pint costs far less
AprilAire E070 key specs
| Spec | AprilAire E070 Pro |
|---|---|
| Capacity | 70 pints per day (manufacturer rating) |
| Coverage | Homes up to about 2,200 sq ft |
| Dimensions | About 12.5″ x 12.5″ x 25″ |
| Drainage | No bucket; drains through a hose to a floor drain or pump |
| Coils | Corrosion-resistant aluminum |
| Made in | USA |
| Best for | Crawl spaces, especially sealed or encapsulated ones |
| Tier | Big-ticket |
| Buy | Check price |
What we like
A shape made for crawl spaces
At roughly 12.5 by 12.5 inches, the E070 slides through the small access doors that stop most portable dehumidifiers. Check the installation manual for placement and clearance requirements before you set it in place.
Built for constant damp
Crawl spaces are cool, dark and humid, and many portable units aren’t meant to live there full time. The E070’s corrosion-resistant aluminum coils are designed for that environment. Owners frequently mention it running for long stretches with little fuss once installed.
No bucket to empty
Nobody wants to crawl under the house to empty a tank. The E070 drains through a hose, so water goes to a floor drain, a gravity line outdoors, or a condensate pump. That’s what makes true set-and-forget humidity control possible.
A code-recognized approach
The International Residential Code (section R408.3) allows dehumidification as one of the methods for conditioning an unvented crawl space, alongside other options like supplying conditioned air. Local codes vary and inspectors have the final say, so check with your building department before you seal and dehumidify.
Strong owner feedback
The review count is small compared with mass-market portables, which is normal for a specialized, big-ticket unit. The pattern is positive: owners describe crawl space readings dropping into the 50% range and musty odors fading in the rooms above.
What to know before you buy
- It’s a big-ticket purchase. Expect to pay far more than for a portable dehumidifier, plus drainage parts and possibly installation.
- You need a drain plan. No floor drain and no downhill path outside? Budget for a condensate pump, since this unit has no bucket.
- Seal first, then dehumidify. In a vented crawl space with open vents, a dehumidifier fights humid outdoor air all summer. A vapor barrier and sealed vents come first.
- Power and placement. Plug into a dedicated, GFCI-protected outlet, and set the unit on a level surface or stand, not directly on wet dirt.
- Filters need attention. Crawl spaces are dusty. Check and clean or replace the filter per the manual so airflow stays strong.
- Ratings vary by test standard. Pint-per-day numbers depend on test temperature and humidity. Compare units rated under the same conditions.
Crawl spaces can hide sharp debris, pests, mold and exposed wiring. Wear gloves, eye protection and a well-fitting N95 mask, keep kids and pets out, and turn off power before working near electrical connections. If you see heavy mold growth or signs of rodents, stop and call a pro.
How it compares
Here’s how the E070 stacks up against AprilAire’s bigger E080 and a pump-equipped option from Abestorm.
| AprilAire E070 Pro | AprilAire E080 Pro | Abestorm 120-pint crawl space | |
|---|---|---|---|
| Capacity | 70 pints/day (mfr rating) | 80 pints/day (mfr rating) | 55 pints/day (AHAM) |
| Coverage | Up to 2,200 sq ft | Up to 4,400 sq ft | Crawl spaces and basements |
| Drainage | Hose; no bucket | Hose; no bucket | Built-in pump, lifts up to 19.6 ft |
| Standout | Compact, fits crawl space doors | ENERGY STAR Most Efficient | No separate pump needed |
| Owner feedback | Strong, smaller review base | Strong, smaller review base | Newer, few reviews |
| Tier | Big-ticket | Big-ticket | Premium |
| Buy | Check price | Check price | Check price |
Pick the AprilAire E080 if your home or crawl space is larger than the E070 is rated for, or if you want an ENERGY STAR Most Efficient unit that can serve a basement too. It also appears in our guide to the best dehumidifier for basement moisture.
Pick the Abestorm if you have no drain and no downhill path outside. Its built-in condensate pump saves you from buying and plumbing a separate one, though it has a much shorter track record.
For the full roundup, including a budget portable alternative, see our guide to the best dehumidifier for crawl space use.
Setup and use tips
- Fix water first. Clear gutters, extend downspouts and correct grading. Standing water needs a sump or drainage solution before a dehumidifier.
- Install a vapor barrier. Cover the ground with a heavy polyethylene liner, overlapped and taped, running up the walls. Sealed vents and rim joists complete the job.
- Measure humidity. Put a hygrometer like the Govee H5075 in the crawl space so you can check readings from your phone when you’re nearby.
- Place the unit centrally. Put it on a level stand or blocks, away from walls, with room around the intake and outlet.
- Route the drain. Run the hose downhill to a drain or to a condensate pump that discharges outside, away from the foundation.
- Set the target. Many pros aim for about 50% RH or a little below in a crawl space. Check readings weekly for the first month.
- Maintain it. Clean or replace the filter per the manual, and inspect the drain line each season for clogs.
Our step-by-step guide on how to get rid of humidity in a crawl space covers vapor barriers and sealing in detail. If the smell has spread upstairs, see how to get rid of a musty smell in the basement.
Hire a crawl space or waterproofing contractor for full encapsulation, if you find mold over about 10 sq ft (the EPA’s threshold), after flooding or sewage backups, or if you see rodent activity, standing water or wood rot. A pro can also confirm the unit is sized for your space and that the install meets local code.
AprilAire E070 review verdict
The AprilAire E070 is a strong choice for sealed crawl spaces in small to mid-size homes. It fits where portables don’t, handles constant damp and drains without a bucket. It isn’t a budget buy, and it won’t solve water intrusion or a vented crawl space on its own.
If your crawl space is sealed, drained and under about 2,200 sq ft of home, it’s one of the best long-term investments you can make for your floors, your indoor air and your peace of mind.
Our verdict
AprilAire E070 Pro 70-Pint Crawl Space Dehumidifier
Best for: sealed or encapsulated crawl spaces in homes up to about 2,200 sq ft.
Why we picked it
- Compact size fits through most crawl space doors
- Corrosion-resistant aluminum coils for constant damp
- No bucket; drains to a hose, floor drain or pump
Keep in mind
- Big-ticket, plus drainage parts or install costs
- Needs a drain or separate condensate pump
- Not a fix for a vented, unsealed crawl space
Frequently asked questions
How big a crawl space can the AprilAire E070 handle?
AprilAire rates the E070 for homes up to about 2,200 sq ft. Actual performance depends on how well the crawl space is sealed, the local climate and how much moisture comes through the ground and walls. Larger homes or leaky crawl spaces may need the E080 or professional sizing.
Does the AprilAire E070 need a condensate pump?
Only if you can’t drain by gravity. The unit has no bucket and drains through a hose. If your crawl space has a floor drain or a downhill path to the outside, you can run the hose there. Otherwise, add a condensate pump that discharges away from the foundation.
Can I install the AprilAire E070 myself?
Many handy homeowners do, especially in crawl spaces that are already sealed and have a drain. You’ll need a GFCI-protected outlet, a level spot and a drain plan. For full encapsulation or where local code applies, a professional installation is the safer choice.
Is a crawl space dehumidifier required by code?
Not always. The IRC section R408.3 allows several ways to condition an unvented crawl space, and dehumidification is one of them. Vented crawl spaces follow different rules. Local codes vary, so check with your building department or a licensed contractor before sealing vents.
What humidity should a crawl space be?
Most experts aim to keep crawl spaces below about 60% RH, with many pros targeting around 50%. Staying in that range helps limit mold, wood rot and musty smells in the rooms above. Use a hygrometer to confirm readings rather than guessing.
Still comparing options? See our full guide to the best dehumidifier for crawl space moisture, or our complete mold and mildew guide if you’re already seeing growth.
