AlorAir vs AprilAire dehumidifiers

One builds a pump into the box so it can dry a crawl space with no drain. The other publishes a capacity figure a government agency verified. They are not competing on the same thing.

Short answer: buy AlorAir if the space has no drain, and AprilAire if it does. AlorAir builds a condensate pump into the unit and makes it small enough to get into a crawl space, which solves the problem that actually stops most installs. AprilAire publishes an ENERGY STAR verified capacity figure, a real efficiency rating and a warranty everybody states the same way, which is what you want when a drain is already there and you are buying on evidence.

Before anything else, understand that the two brands name their products using different test conditions, so the model numbers cannot be compared. An AlorAir "120 pint" unit removes 55 pints a day under the test an AprilAire "80 pint" unit scores 65.0 on. The smaller-sounding machine is the larger one. That single fact decides most of the bad purchases in this category.

Quick picks

#	Product	Best for	Score	Price
1	AprilAire E080ENERGY STAR Most Efficient, with a certified 65.0 pints a day of water removal and 632 kWh a year, behind a washable MERV 8 filter and a five-year warranty everyone states the same way.	AprilAire's case: a number somebody else verified	8.7★★★★	Check price on Amazon → #ad we earn a commission · Amazon shows the current price
2	AlorAir Sentinel HDi65SA 19 inch unit with a condensate pump rated to lift 19.6 feet and an operating range down to 33.8 F — for the crawl space that has no drain and gets cold.	AlorAir's case: it solves the drainage problem in the box	8.4★★★★	Check price on Amazon → #ad we earn a commission · Amazon shows the current price
3	AprilAire E100A verified 85.0 pints a day at the same 2.35 L/kWh, with 10 inch duct collars for tying into a basement's existing air handling.	A whole basement, ducted into existing returns	8.6★★★★	Check price on Amazon → #ad we earn a commission · Amazon shows the current price
4	AlorAir Sentinel HDi90AlorAir's drainage argument scaled up: 90 pints a day at AHAM, 210 CFM, a MERV-8 filter as standard and a published DOE figure.	A large crawl space that still has no drain	8.5★★★★	Check price on Amazon → #ad we earn a commission · Amazon shows the current price

Scores are ours and editorial, not lab measurements — see how we pick. Tap a row for the full write-up.

How we compared them

Five criteria, applied in this order. The first two eliminate units outright in a given house; the rest separate what is left.

1. Can it get in, and can it drain? Hatch clearance and condensate disposal decide a crawl space install before capacity is ever discussed. An AprilAire over a dirt floor needs a pump you buy separately; an AlorAir has one.
2. What does it remove under a comparable test? Not the saturation figure. We rank on AHAM, DOE or ENERGY STAR verified water removal, and we say which one each number is.
3. Who measured it? An ENERGY STAR certified figure is independently tested and publicly recorded. A manufacturer's AHAM figure is a real test condition self-reported. Both are usable; they are not the same evidence.
4. What does it filter, and how cold does it run? A crawl space is dusty and cold. MERV-1 is a screen; MERV-8 is a filter. A 49 F cut-off means half a winter off duty.
5. What is the warranty, and does everybody state it the same way? Five years stated consistently is worth more than six years stated three different ways.

Brand against brand

Read that as two companies solving different halves of the same problem. AprilAire answers "how do I know this works and what will it cost to run". AlorAir answers "how do I get this into my crawl space and where does the water go". Neither is dodging the other's question so much as declining to compete on it.

#1AprilAire's case: a number somebody else verified

AprilAire E080

ENERGY STAR Most Efficient, with a certified 65.0 pints a day of water removal and 632 kWh a year, behind a washable MERV 8 filter and a five-year warranty everyone states the same way.

8.7/10★★★★★Our editorial score: 8.7 out of 10

Check price on Amazon →

#ad we earn a commission · Amazon shows the current price

Specifications, as published by AprilAire

Type	Whole-house dehumidifier, ducted or free-standing
Capacity	Removes up to 80 pints (10 gallons) per day
ENERGY STAR water removal	65.0 pints/day
Coverage	Basements, sealed crawl spaces or whole homes up to 4,400 sq ft
Dimensions	15 H x 14 W x 26 D in
Filter	Washable MERV 8, 13.5" x 12" nominal
Efficiency	2.35 L/kWh integrated energy factor; 632 kWh/year
Certification	ENERGY STAR Most Efficient 2025
Coils	Corrosion-resistant aluminum

AprilAire's argument is verification. The E080 is an ENERGY STAR certified product, which means its water-removal rate was measured under a standard test by somebody other than AprilAire and published where anyone can read it: 65.0 pints a day, 2.35 liters per kilowatt-hour, 632 kilowatt-hours a year. In a category where the number on the box is usually chosen for its size, that is worth a great deal.

The hardware backs it. Corrosion-resistant aluminum coils in a machine whose entire job is condensing water, a washable MERV 8 filter rather than a disposable screen, and a five-year warranty that the manufacturer and the distributors all state the same way. AprilAire is a Research Products Corporation brand and says the units are designed and manufactured in the USA.

What it does not do is move its own water. AprilAire's installation guidance is to site the unit over a drain, which is a reasonable assumption in a basement and a wrong one in a crawl space. That single omission is why the AlorAir units exist and why this comparison is not a straight fight. The E100, one size up, is the same machine with a verified 85.0 pints a day — see built-in basement dehumidifiers.

What it gets right

• ENERGY STAR certified at 65.0 pints/day of water removal — independently tested, published in a government database, not a marketing figure
• 2.35 L/kWh integrated energy factor and 632 kWh/year, so the annual running cost is arithmetic rather than a guess
• ENERGY STAR Most Efficient 2025
• Washable MERV 8 filter and corrosion-resistant aluminum coils
• Ducted or free-standing, covering a basement or sealed crawl space up to 4,400 sq ft from one unit
• Five-year warranty, stated identically by AprilAire and by its distributors
• Designed and manufactured in the USA, per the manufacturer

Where it falls short

• No internal condensate pump. AprilAire's guidance is to place the unit over a drain, which a crawl space usually does not have
• 15 H x 14 W x 26 D in is long and awkward in a low crawl space, where the AlorAir units fit between joists
• No published airflow figure in CFM on the listings we could reach, which makes ducting harder to plan
• Sold mainly through HVAC distribution rather than consumer retail — a trade order, not a next-day delivery
• Costs substantially more than the comparable AlorAir before you add the condensate pump you may still need

Specifications from AprilAire E080 product page, AprilAire E080 distributor listing (available, checked 2026-10-21), ENERGY STAR certified dehumidifier record.

#2AlorAir's case: it solves the drainage problem in the box

AlorAir Sentinel HDi65S

A 19 inch unit with a condensate pump rated to lift 19.6 feet and an operating range down to 33.8 F — for the crawl space that has no drain and gets cold.

8.4/10★★★★★Our editorial score: 8.4 out of 10

Check price on Amazon →

#ad we earn a commission · Amazon shows the current price

Specifications, as published by AlorAir

Type	Ductable basement and crawl-space dehumidifier with a built-in condensate pump
Capacity	55 pints/day at AHAM (80 F, 60% RH); 120 pints/day at saturation (90 F, 90% RH)
Coverage	Up to about 1,300 sq ft
Airflow	130 CFM
Dimensions	19.2 x 12.2 x 13.3 in
Weight	Listings disagree: 44 lb on one retailer, 57.3 lb on the AlorAir store
Electrical	115 V, 60 Hz
Efficiency	2.4 L/kWh
Operating range	33.8 to 104 F; 36% to 90% RH
Refrigerant	R410A
Condensate	Built-in pump lifting 19.6 ft, or gravity drain to 6.5 ft
Noise	Under 52 dB(A)
Filter	MERV-1 supplied; a MERV-8 filter is also listed for the unit
Wi-Fi	Only on the Wi-Fi variant, which controls and monitors through the AlorAir-C app
Warranty	Stated inconsistently — see the review page

AlorAir's argument is practical rather than evidential: here is a dehumidifier that fits through your hatch and gets rid of its own water. In a crawl space those two things decide the install, and no amount of certification makes up for a unit that cannot be carried in or drained once it is there.

The pump is the whole case. 19.6 feet of lift means the condensate line can go up through the rim joist and out to grade with no pit, no fall and no second appliance. Add an operating range down to 33.8 F and a 19 inch body, and you have a machine designed by somebody who has actually been in a crawl space.

The cost is honesty about capacity. A unit named for a 120 pints-per-day saturation figure sitting next to an AprilAire named for 80 pints looks like the bigger machine, and it is the smaller one: 55 pints a day at AHAM against a certified 65. AlorAir publishes both numbers, so this is marketing rather than deception, but the names mislead and almost every forum recommendation repeats the mistake. The full unit review is in the AlorAir Sentinel HDi65S review.

What it gets right

• Built-in condensate pump rated to 19.6 ft of lift, so the unit sits on the crawl space floor and pushes water out through the rim joist
• 19.2 x 12.2 x 13.3 in, which fits hatches and joist bays the AprilAire does not
• Runs down to 33.8 F, where the AprilAire publishes no minimum and the Santa Fe stops at 49 F
• 130 CFM through a ductable outlet, and a gravity-drain option if you do have a fall to work with
• 2.4 L/kWh stated efficiency, in the same territory as the certified AprilAire figure
• In stock direct from AlorAir when we checked on 4 November 2026

Where it falls short

• Marketed as a 120 pints-per-day unit on a saturation figure measured at 90 F and 90% RH. The comparable number is 55 pints a day at AHAM — less than half, and less than the AprilAire's certified 65
• No ENERGY STAR certification, so every capacity figure is the manufacturer's own
• Ships with a MERV-1 filter, which is a coarse screen, against AprilAire's washable MERV 8
• Warranty published three different ways across three sellers: six years limited, five years, and a one-year performance guarantee
• Published weight disagrees by thirty percent between retailers (44 lb vs 57.3 lb)
• Coverage to about 1,300 sq ft against the E080's 4,400 — these are not the same size of machine

Specifications from AlorAir Sentinel HDi65S retail listing and specification (in stock, checked 2026-10-21), AlorAir store listing: in stock, 130 CFM, 19.6 ft pump lift, 57.3 lb, R410A, 2.4 L/kWh, 36-90% RH (checked 2026-11-04), AlorAir Sentinel HDi65S distributor specification.

#3A whole basement, ducted into existing returns

AprilAire E100

A verified 85.0 pints a day at the same 2.35 L/kWh, with 10 inch duct collars for tying into a basement's existing air handling.

8.6/10★★★★★Our editorial score: 8.6 out of 10

Check price on Amazon →

#ad we earn a commission · Amazon shows the current price

Specifications, as published by AprilAire

Type	Whole-house dehumidifier, ducted or free-standing
Capacity	Removes up to 100 pints (12.5 gallons) per day
ENERGY STAR water removal	85.0 pints/day
Coverage	Basements, sealed crawl spaces or whole homes up to 5,500 sq ft
Dimensions	15 H x 14 W x 26 D in
Duct collars	10 in inlet and 10 in outlet
Filter	Washable MERV 8, 13.5" x 12" nominal
Efficiency	2.35 L/kWh integrated energy factor; 821 kWh/year

If the job is a whole basement rather than a damp corner, and especially if there is ductwork to tie into, this is the unit the comparison points at. Ten-inch duct collars on both the inlet and the outlet mean it can be integrated into the house's air handling rather than treated as an appliance, and the verified 85 pints a day is the largest independently tested figure here.

The decision between the E080 and the E100 is square footage and nothing else: 4,400 against 5,500, at identical efficiency and the same warranty. Both still need somewhere for the water to go.

What it gets right

• ENERGY STAR verified at 85.0 pints/day of water removal — the largest certified figure on this page
• 2.35 L/kWh, the same efficiency as the E080 at greater capacity, and 821 kWh/year published
• 10 in inlet and outlet duct collars, so it ties into existing basement ductwork properly rather than being a box in a corner
• Coverage to 5,500 sq ft, enough for a whole house rather than one room
• Same washable MERV 8 filter and five-year warranty as the E080

Where it falls short

• Still no internal condensate pump — the drain requirement does not go away with size
• Same 15 H x 14 W x 26 D in body as the E080, so the crawl space fit problem is unchanged
• The most expensive unit on this page by a clear margin
• Oversizing is a real cost: a dehumidifier with twice the capacity you need short-cycles, which dries unevenly and wears the compressor

Specifications from AprilAire E100 product page, AprilAire E100 distributor listing (available, checked 2026-10-21), ENERGY STAR certified dehumidifier record.

#4A large crawl space that still has no drain

AlorAir Sentinel HDi90

AlorAir's drainage argument scaled up: 90 pints a day at AHAM, 210 CFM, a MERV-8 filter as standard and a published DOE figure.

8.5/10★★★★★Our editorial score: 8.5 out of 10

Check price on Amazon →

#ad we earn a commission · Amazon shows the current price

Specifications, as published by AlorAir

Type	Basement and crawl-space dehumidifier with a built-in condensate pump
Capacity	90 pints/day at AHAM (80 F, 60% RH); 198 pints/day at saturation
DOE rating	47.71 pints/day at DOE (60 F, 60% RH)
Coverage	Up to about 2,600 sq ft
Airflow	210 CFM
Noise	Under 58 dB(A)
Pump lift	Pumps condensate over 16 ft of hose
Operating range	33.8 to 104 F
Filter	MERV-8

This is the unit that makes the brand comparison genuinely close, because it is the one AlorAir where the capacity exceeds the AprilAire it sits against and the filter is no longer a weakness. 90 pints a day at AHAM against a certified 65, with a pump in the box and a MERV-8 filter as standard.

It is also the only unit on this page where somebody publishes a DOE figure, 47.71 pints a day at 60 F and 60% RH. That is the coldest and least flattering of the three test conditions and the closest to a real crawl space in spring. Publishing it at all is the most honest thing either brand does.

What it gets right

• 90 pints a day at AHAM, which is a genuine step up and comfortably past the AprilAire E080's certified 65
• A DOE figure is actually published — 47.71 pints/day at 60 F and 60% RH, the most conservative test condition and the one nearest a real crawl space
• 210 CFM, enough to move air the length of a large crawl space
• MERV-8 filter as standard, matching the AprilAire rather than the HDi65S's MERV-1
• Condensate pump over 16 ft of hose, and the same 33.8 to 104 F operating range
• Coverage to about 2,600 sq ft

Where it falls short

• Under 58 dB(A), noticeably louder than the HDi65S's under 52 — relevant when the crawl space is under a bedroom
• Pump lift is specified as over 16 ft of hose, which reads as less reach than the smaller HDi65S's 19.6 ft figure. Check it against your install height
• Still no ENERGY STAR certification, so the capacity figures remain the manufacturer's own
• Dimensions are not published on the listings we could reach, which is a problem when hatch clearance is the constraint
• Headline is a 198 pints-per-day saturation figure — the same naming issue as the HDi65S

Specifications from AlorAir Sentinel HDi90 specification listing, AlorAir Sentinel HDi90 retail listing.

The capacity trap, in one table

This is the part worth reading twice, because it is where the money gets wasted. Dehumidifier capacity is quoted under three standard conditions and the industry quotes whichever flatters the product.

So the honest ladder, smallest to largest, is: AlorAir HDi65S at 55, AprilAire E080 at a certified 65, Santa Fe Compact70 at 70, AprilAire E100 at a certified 85, AlorAir HDi90 at 90. The product names imply a completely different order.

Where AlorAir is the right answer

• A crawl space with a dirt floor and no drain. The internal pump is the whole argument and nothing AprilAire sells has one.
• A small or awkward access hatch. 19 inches of unit goes where 26 inches does not.
• A space that gets cold. 33.8 F of operating range against an AprilAire that publishes no minimum.
• You want one box rather than a unit plus a condensate pump plus the plumbing between them.

Where AprilAire is the right answer

• A basement with a floor drain. The missing pump stops being a drawback and the certified figures start being worth the premium.
• You are buying on evidence. ENERGY STAR verified water removal and a published kWh-per-year figure are checkable; a manufacturer's own rating is not.
• A whole house rather than a room. 4,400 to 5,500 square feet of coverage, and duct collars on the E100 to do it properly.
• You want a warranty you can quote back. Five years, stated identically everywhere, against three different AlorAir answers.
• Running cost matters. 632 kWh a year on the E080 is a number you can put against your own electricity rate — see how much electricity does a sump pump use for the same arithmetic applied to a pump.

What neither brand will tell you

A dehumidifier is the third step in a wet basement or crawl space, not the first. Bulk water first, ground cover second, humidity third. Running either of these units in a space where water is still arriving means paying to dehumidify the outdoors, and the compressor will lose that argument eventually.

The second thing: oversizing is not free. A unit with twice the capacity the space needs reaches its setpoint quickly, shuts off, and starts again — and short cycling dries air unevenly and wears a compressor faster than steady running does. Size on the comparable figure, for the actual square footage, in the actual conditions.

And set the humidistat to 50 to 55 percent. The EPA's guidance is to keep indoor humidity below 60 percent, ideally between 30 and 50; chasing 35 in a crawl space costs electricity for a difference nobody can feel. Basement humidity level has the full reasoning.