8 Dehumidifiers for Garages in Cold Weather (October 2026)

The short answer to what type of dehumidifier works best in cold temperatures is a unit built for it: a compressor machine with automatic defrost, or a desiccant unit with no cold coil at all. A standard house dehumidifier quits long before your garage does, because the cooling coil drops below freezing and ices over. We spent weeks comparing the best dehumidifiers for garages in cold weather, and the deciding spec is never capacity or square footage. It is the published minimum operating temperature. If a listing will not state one, treat the model as unqualified for a winter garage.

We built the roundup around that single pass/fail test. Every unit below states its low-temperature behaviour, its drainage path, and what owners actually reported after living with it through a winter. For the broader picture on household and basement machines, our general dehumidifier guide and basement dehumidifier roundup cover the basement side in more depth.

Our Top 3 Best Dehumidifiers for Garages in Cold Weather (October 2026)

EDITOR'S CHOICE

ALORAIR Sentinel HD55

★★★★★★★★★★4.3

• Automatic defrost with temperature sensors
• Continuous gravity drainage no tank
• Metal casing rated for low-temperature operation

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TOP RATED

Yaufey 150 Pint Pump Unit

★★★★★★★★★★4.5

• 150 pints per day at 95F
• Three drainage modes including upward pump
• 8500 sq. ft. coverage

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BEST VALUE

Waykar 80 Pint Energy…

★★★★★★★★★★4.3

• Over 22500 owner ratings
• AI frost sensing with automatic defrost
• 90 degree swing louver and 30 percent RH

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Comparing 8 Cold-Garage Dehumidifiers Side by Side in 2026

Product	Features
ALORAIR Sentinel HD55	53 PPD AHAM rated Automatic defrost Continuous gravity drain 1 200 sq. ft.	Check Latest Price
Aiusevo 75 Pint Pump Unit	200 CFM airflow Built-in pump with 16.4 ft hose Automatic defrost 4 000 sq. ft.	Check Latest Price
Waykar 150 Pint Pump Unit	ENERGY STAR 2025 Pump lift up to 9.84 ft Auto defrost and self-drying 7 000 sq. ft.	Check Latest Price
Waykar 125 Pint Pump Unit	16.4 ft pump lift Rotary compressor 5-year compressor warranty 6 500 sq. ft.	Check Latest Price
Yaufey 150 Pint Pump Unit	150 PPD Pump tank and gravity drainage Rotary compressor 8 500 sq. ft.	Check Latest Price
avylo 90 Pint Pump Unit	ENERGY STAR Most Efficient 2025 235 watts 15 ft pump lift 41 dB	Check Latest Price
Waykar 80 Pint Energy Star	80 PPD AI frost sensing 30 to 80 percent RH 5 000 sq. ft.	Check Latest Price
AEOCKY 80 Pint Most Efficient	Stated low-temp operation to 65 F ENERGY STAR Most Efficient 2025 44 dB 5 500 sq. ft.	Check Latest Price

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Why Cold Breaks Ordinary Garage Dehumidifiers

A compressor dehumidifier works by chilling a coil below the air’s dew point and letting water drip off it. In a cold garage that coil reaches 32F or lower, and the moisture in the air freezes onto it as ice. The fan pushes air through a blocked coil, the unit keeps drawing power, and the tank stays empty. Owners usually read this as a broken machine when it is really a mistempered one.

Editorial pages usually quote 41F as the floor for a standard compressor machine. Owners on garage forums quote something closer to 60F for units without a genuine low-temperature rating. Both are right, and the gap between them is the whole story: 41F is where the coil starts icing, and 60F is roughly where you stop getting useful water collection.

Automatic defrost is the fix. The unit pauses the compressor and heats or fans the coil until the ice clears, then resumes. You lose collection time on every cycle, so a cold garage always delivers less water than the pint rating suggests. Desiccant machines skip the problem entirely by absorbing moisture onto a rotor and regenerating it with heat, which costs more electricity per pint removed but keeps working below freezing.

The 8 Best Dehumidifiers for Garages in Cold Weather

1. ALORAIR Sentinel HD55 – The Unit Built for Crawlspaces and Cold Slabs

EDITOR'S CHOICE

Pros:

• ✓ Drains continuously with no tank to empty
• ✓ Rugged metal casing
• ✓ Automatic defrost with built-in temperature sensors
• ✓ Compact enough for tight crawlspace openings
• ✓ 6-year limited warranty

Cons:

• ✕ Evaporator coils ice heavily in cold conditions
• ✕ Noticeably loud
• ✕ Replacement air filters are costly

ALORAIR 113 Pints Crawlspace Dehumidifier for Commercial, Sentinel…

★★★★★★★★★★4.3

53 PPD AHAM rated, 113 pint saturation

1,200 sq. ft. coverage

Auto-defrost, continuous gravity drain

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This is the machine we kept coming back to while reading owner reports. The Sentinel HD55 is one of very few units in this group whose spec sheet lists low-temperature operation as a rated capability alongside automatic defrost, and it carries a 6-year limited warranty, the longest coverage here. That pairing is why it takes the top slot.

At 41.7 pounds it is not a one-person carry for a two-storey space, but the 19.2 by 12.2 by 13.3 inch body fits through a crawlspace opening without fuss. There is no internal tank at all. Water leaves through a continuous gravity drain, which removes the single failure mode owners complain about most: a tank that fills in a space nobody visits.

What the 113 Pint Figure Really Means

The headline number is a saturation figure. The AHAM rated capacity is 53 pints per day, and a cold garage with an active defrost cycle collects less than that. Read the 53, not the 113, when you size against a wet slab.

Where the Defrost Cycle Falls Short

Owners report evaporator icing that arrives sooner and harder than the manufacturer suggests, and several mention the ice blocking filter removal. The loudness is the other recurring note. Neither issue defeats the machine, but both are reasons to place it somewhere you do not stand and talk next to.

Warranty and Real-World Longevity

A minority of owners report refrigeration or controller failures around the two-year mark. The counterweight is that Alorair replaced or refunded under warranty in several of those cases. For a garage machine expected to run unattended for seasons, that support record is worth paying for.

2. Aiusevo 75 Pint Pump Unit – Best Fit for Tight Clearances

BEST FOR TIGHT CLEARANCES

Pros:

• ✓ Very high moisture extraction for its size
• ✓ Dual drainage options
• ✓ Compact enough to fit between floor joists
• ✓ Light enough for one person to install
• ✓ Runs quietly for a commercial-class unit

Cons:

• ✕ Only one-year warranty
• ✕ Remote control and extra hose sold separately
• ✕ Some machines reported failing to power on

Crawl Space Dehumidifier with Pump & Drain Hose, up to 70 Pints…

★★★★★★★★★★4.3

75 pints per day, 200 CFM

Covers 4,000 sq. ft.

Pump and gravity hoses included

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This unit solves a problem the bigger machines create: getting a drain line anywhere useful in a finished garage. The built-in pump moves water upward or over long horizontal runs, and the package includes a 16.4 ft pump hose plus a 6.6 ft gravity hose, so you are not hunting for fittings.

Automatic defrost is listed among its features, which makes it a legitimate cold-garage candidate rather than a basement machine that has been rebranded. At 39 pounds and 17.6 by 13.5 by 12.5 inches it slides under a bench or between joists without ceremony.

Drainage Flexibility Is the Whole Point

Owners describe the pump and gravity combination as the design element they value most, and several document rapid humidity drops in damp spaces. For a garage with no floor drain and a sloped slab, that flexibility removes the usual excuse for not installing a machine at all.

Control Panel and Reliability Caveats

The touchscreen panel carries a 24-hour timer and auto-restart after power loss, but reviewers report settings can reset after a power cycle. A small number also report units that would not power on without repeated unplugging. The one-year warranty is the shortest in this group, which is the main reason this machine does not take the top spot.

Where It Falls Short of the Big Compressors

Its 200 CFM airflow and 4,000 sq. ft. coverage figure sit below the 6,500 to 8,500 sq. ft. claims of the larger machines here. In a genuinely wet slab or a three-bay shop, that headroom matters. In a one-car garage with a vapour barrier under stored items, it is ample.

3. Waykar 150 Pint Pump Unit – Best for Large Workshops

BEST FOR LARGE WORKSPACES

Pros:

• ✓ 150-pint capacity paired with 2025 ENERGY STAR efficiency
• ✓ Pump plus gravity drainage covers awkward layouts
• ✓ Tank empties without moving the unit
• ✓ Self-drying function reduces coil mold risk

Cons:

• ✕ Memory restart needs a manual pump reset
• ✕ Consumer form factor rather than a crawl space chassis
• ✕ Pump can be noisy during drain cycles

Waykar 150 Pint Commercial Dehumidifier with Pump & Drain Hose for…

★★★★★★★★★★4.4

150 pints per day, 18.75 gallons

Covers 7,000 sq. ft.

ENERGY STAR certified for 2025

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Capacity is the argument here. The rotary compressor and 7mm threaded pure copper tubing are paired with a 2025 ENERGY STAR certification, which means the water comes out of a compressor that is not the most expensive part of your power bill. Owners treat it as strong value for large basements and garages.

The built-in pump lifts water up to 9.84 ft, so a drain line can run to a floor drain or an exterior discharge without gravity planning. A visible 1.85 gallon tank sits on the machine as a backup path when the pump line is not connected.

Auto Defrost and the Self-Drying Function

Auto defrost and a self-drying cycle handle cold coil icing, and the 30% to 80% humidity range gives you a target band suitable for tool and cardboard storage. The self-drying function dries the coil after a run, which matters in a space where the machine stays in humidity for weeks.

The Restart Quirk Worth Knowing Before You Buy

Memory restart is a genuine friction point. After the machine is unplugged, the pump has to be reset by hand. In an unattended garage that means a power flicker or a breaker trip could leave you draining by hand until you notice. Budget a thirty-second check after any outage.

Form Factor Versus Chassis Class

This is a consumer-bodied machine with commercial capacity, not a bolted-down crawl space chassis. If your garage gets abrasive dust, standing water, or you plan to move the unit between seasons, the Sentinel HD55 casing is the better physical fit even at lower rated capacity.

4. Waykar 125 Pint Pump Unit – Best for Distant Drains

BEST FOR DISTANT DRAINS

Pros:

• ✓ 16.4 ft upward pump lift
• ✓ longest drain reach in this group
• ✓ 5-year compressor warranty
• ✓ Rotary compressor for efficiency and longevity
• ✓ 10 to 90 percent humidity range
• ✓ Heavy metal casing

Cons:

• ✕ Heaviest unit here at nearly 50 pounds
• ✕ Highest one-star rating share in the group
• ✕ Remote control sold separately

Waykar 125 Pint Crawl Space Dehumidifier with Pump & Drain Hose for…

★★★★★★★★★★4.2

125 pints per day, 15.63 gallons

Covers 6,500 sq. ft.

16.4 ft upward pump lift

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The 16.4 ft upward pump lift is the number to note. In a finished basement or a garage with a raised workbench and a drain at the far wall, that reach removes the need to run a gravity line that has to fall the whole distance.

Automatic defrost is listed for cold conditions, and the 10% to 90% humidity range covers both the very dry winter target and a summer damp spell. A TUV certified rotary compressor and a 5-year compressor warranty back the hardware.

Warranty Length and Build Quality

Buyers in this group gravitate to the warranty and the pump reach, and the multi-layer condenser with a high-strength metal casing is repeatedly praised as sturdier than plastic-bodied consumer machines. The chassis resists corrosion in a damp garage.

Where Durability Complaints Cluster

The 4.2 rating reflects a cluster of durability complaints running above what the other models here received, and the heaviest share of one-star ratings in this lineup. At 49.8 pounds it is also the hardest unit to move alone, so plan the install with two people.

Continuous Pump Drainage and Setup

Because it drains through the pump, it needs a permanent discharge path from day one. That is a feature in a garage you want to forget about, and a liability in a space where the line might be disturbed by a vehicle. Add a check valve and a leaf trap.

5. Yaufey 150 Pint Pump Unit – Top Rated With Three Drainage Paths

TOP RATED

Pros:

• ✓ 150-pint capacity at the lowest cost per pint in this lineup
• ✓ Largest covered area at 8500 sq. ft.
• ✓ Three separate drainage options
• ✓ Full-tank alert with visible 1.85 gallon tank
• ✓ Three fan speeds
• ✓ Over 6000 ratings give a well-settled reliability picture

Cons:

• ✕ Plastic construction rather than metal
• ✕ Upper operating rating of 89.6 F is the lowest listed
• ✕ Auto defrost reduces output in the cold

Yaufey 150 Pint Dehumidifier with Pump for Basement 8500 Sq. Ft.

★★★★★★★★★★4.5

150 pints per day, 18.75 gallons

Covers 8,500 sq. ft.

Pump, tank and gravity drainage

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With more than six thousand ratings behind it, this machine has a large, long-term owner pool, and the consensus is favourable. Owners repeatedly highlight the pairing of large capacity with flexible drainage, and the living area, basement and continuous modes let you match output to conditions instead of running full tilt.

Automatic defrost is included, alongside power-off memory, a timer, button lock and overload protection. Built-in temperature and humidity sensors with a digital readout mean you can set a target and check it from across the garage.

Three Drainage Options in One Machine

Upward pump, tank and gravity are all built in. That matters because most winter drain-line problems are routing problems. If the hose would freeze, the tank keeps the machine collecting while you work out a safer path.

The Cold-Weather Weak Spot

Owners report that auto defrost cycles cut dehumidification output when temperatures drop, which is the honest cost of any compressor machine in a cold garage. The 89.6 F upper operating rating is also the lowest listed here, which mostly matters for hot-summer basements rather than winter garages.

Plastic Casing and Review Volume

The plastic body is the main physical compromise against the metal machines in this group. The offsetting factor is evidence: with over six thousand ratings behind it, failure patterns here are visible rather than guesswork, which is more than most of the other pump units on this list can offer.

6. avylo 90 Pint Pump Unit – Best for the Lowest Power Draw

BEST FOR LOWEST POWER DRAW

Pros:

• ✓ Very low energy draw for a 90-pint unit
• ✓ ENERGY STAR Most Efficient 2025 certification
• ✓ 15 ft pump lift with 15 ft of hose included
• ✓ Quiet at roughly 41 dB
• ✓ 5-year manufacturer warranty

Cons:

• ✕ 90-pint capacity is modest against the 125 and 150 pint pump machines here
• ✕ Lowest review count so the picture is less settled
• ✕ Floor drain pipe not included
• ✕ Tank must be emptied once before setup

avylo Dehumidifier for Basement with Pump and Hose, Max 90 Pints/D…

★★★★★★★★★★4.5

90 pints per day, covers 4,500 sq. ft.

235 watts, ENERGY STAR Most Efficient 2025

41 dB operation

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Running cost is the argument here. At 235 watts this unit draws roughly half what a 500 watt compressor machine pulls, and it carries an ENERGY STAR Most Efficient 2025 certification with an EER of 2.05 L/kWh. Several reviewers mention seeing the effect on a bill after switching over.

It is also the quietest pump-equipped unit in this group at roughly 41 dB, with a sound and light off mode and a 24-hour timer for overnight or early morning cycles. That combination suits a garage you also use as a workshop or a gym.

Efficiency Certification and the 41 dB Floor

The certification is the differentiator few competitors earn. Owners cite it, along with the copper tubing and low noise figure, as the reasons to pick this over cheaper brands with larger headline pint numbers.

Capacity Headroom and Evidence

Against the 125 and 150 pint pump machines here, 90 pints per day is a modest ceiling, and some buyers note capacity that is adequate but not sufficient for very wet whole-garage loads. With 339 reviews the reliability picture is also the least settled, so weigh the warranty terms more heavily.

Setup Details That Bite Owners

Two small things cost people time. The floor drain pipe is not included, and the 2.11 gallon top-mounted tank has to be emptied once before setup to avoid leaks. Both are five-minute jobs that otherwise turn into a wet floor.

7. Waykar 80 Pint Energy Star – Most Owner Ratings of Any Machine Here

BEST VALUE

Pros:

• ✓ By far the largest review base at over 22500 ratings
• ✓ Lightest unit here at 31 pounds
• ✓ 90 degree auto swing for even drying
• ✓ 30 percent minimum humidity
• ✓ Garden hose compatible continuous drainage

Cons:

• ✕ Consumer compressor design not rated for unheated cold spaces
• ✕ Auto defrost cuts output as temperatures drop
• ✕ Smallest tank at 1.14 gallons
• ✕ Plastic housing

Waykar 80 Pints 5000 Sq. Ft 2025 Energy Star Dehumidifier for Basement

★★★★★★★★★★4.3

80 pints per day, 5,000 sq. ft.

ENERGY STAR certified, 42 dB

30 to 80 percent humidity control

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This is the most battle-tested machine in the group by a wide margin, and the volume of long-term owner reports is the reason it earns a place on a cold-weather list at all. AI frost sensing triggers the automatic defrost cycle when the coil starts to ice.

At 31 pounds and 19.29 by 13.58 by 12.6 inches it is the easiest unit here to move, and the 90 degree swing louver spreads drying across the space instead of aiming at one wall. Thirty percent minimum humidity is lower than most consumer peers.

Airflow and Swivel Control in a Real Garage

At 165 CFM the airflow is respectable but unremarkable, and the 90 degree swing louver is what turns that number into even coverage. Point a fixed louver at one wall and you dry a wall; let it swing and you dry the air volume, which is what protects cardboard and tool steel. Owners working in detached shops with stacked inventory credit the auto swing for fewer damp corners.

The Cold-Weather Honest Assessment

Its compressor class is a consumer design, not a low-temperature chassis, and owners repeatedly note it is unsuited to cold unheated spaces where coils frost up. Use it in a semi-heated garage, or pair it with a space heater that keeps the slab above freezing.

Drainage, Tank Size and Setup Reality

The drain outlet accepts a standard 3/4 inch garden hose directly, so continuous drainage needs no adapter, which is unusual at this capacity. The 1.14 gallon tank is the smallest here, so if you skip the hose you are emptying it more often than with any other unit on this list. In an unvisited garage, that decides the setup for you.

Why the Review Volume Matters Here

With more than 22,500 ratings, the consensus pattern is clear rather than anecdotal: it works well for basements, bathrooms, bedrooms and RVs. A 3/4 inch garden hose fits the drain connection directly, so continuous drainage takes no adapter.

8. AEOCKY 80 Pint Most Efficient – The Only Unit That Publishes a Cold Number

MOST VERSATILE

Pros:

• ✓ Only consumer unit here claiming operation down to 65 F
• ✓ ENERGY STAR Most Efficient 2025
• ✓ 44 dB on the lowest fan speed
• ✓ Narrow 14.45 by 8.66 inch footprint
• ✓ Metal construction
• ✓ Three-year coverage

Cons:

• ✕ Garage use not listed among recommended uses
• ✕ 5500 sq. ft. coverage is modest for a whole garage
• ✕ Gravity drainage only with no built-in pump

AEOCKY 5500 Sq.Ft Energy Star Most Efficient 2025 Dehumidifier Max…

★★★★★★★★★★4.5

80 pints per day, 56 at 86F

Covers 5,500 sq. ft.

Stated low-temperature operation to 65 F

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Of everything we reviewed, this is the only listing that publishes a minimum operating temperature as a number, and the number is 65 F. That transparency is why it sits on this list. If your garage stays above 65 F while the machine runs, the RHEA-001 has a stated cold-weather case rather than an assumed one.

It is also the narrowest machine here at 14.45 by 8.66 by 24.09 inches, which makes it easy to place against a wall where a wider unit would block airflow. The Rotor Compressor Pro+ with copper tubing and hydrophilic foil coils runs at 280 watts.

Reading the Stated 65 F Threshold Honestly

65 F is a useful floor but it is not a promise of useful collection at 65 F. The stated rate of 56 pints per day at 86 F and 80% RH shows how sharply output drops as conditions soften, and a garage at the threshold will collect far less than the 80 pint headline.

Coverage and Drainage Limits

The 5,500 sq. ft. figure is modest for a whole-garage load, and drainage is gravity only. In a detached garage with no floor drain you will need to plan a fall, or accept the 1.45 gallon tank and check it on a schedule.

Quiet Operation and Metal Build

At 44 dB on the lowest fan speed and under 50 dB at the highest, plus five operating modes including sleep and smart drying, it is the easiest machine here to live beside. Metal construction resists the dents that show up on plastic units in a working garage.

How to Choose a Dehumidifier That Survives Your Garage

Match the Machine to Your Winter Low

Find the lowest temperature your garage actually reaches, then check it against the unit’s published minimum. Below roughly 41 F, a standard compressor coil ices up and you need automatic defrost or a desiccant design. Around 60 F is roughly where an unrated consumer unit stops collecting useful water, which is why owners on forums quote that figure.

Size by Square Footage and Headroom

A one-car garage sits around 200 to 400 sq. ft., a two-car around 400 to 600, and a workshop bay more. Pick from the top of the pint range, because defrost cycles are time not spent collecting, and an undersized unit that never reaches setpoint runs more expensive than a larger one that cycles.

Decide Between a Gravity Drain and a Pump

Gravity drainage is quieter and has fewer parts, but it needs a downward run the whole distance. A pump lifts water upward or across the garage and lets you place the discharge anywhere sensible. In a cold garage, add a check valve and route the line where a vehicle cannot pinch it.

Do Not Trust a Pint Number Across Brands

The Department of Energy changed the test method in 2019, and several brands relabeled identical hardware with lower numbers afterward. That is why the same machine can look like 113 pints on one listing and 53 pints on another. Compare rated capacity, not the headline figure, and check whether the number is a saturation rating.

Seal the Space Before You Buy

Weatherstrip the service door, fit a door bottom seal, close the wall-to-slab gaps, and put a vapour barrier under stacked cardboard or stored fabric. Every one of those steps does more for your humidity than an extra ten pints of capacity will.

What Garage and HVAC Owners Actually Report

The most-cited figure in forum discussion comes from a bobistheoilguy.com thread explaining that dehumidifiers do not work in cold temperatures because the coils freeze up, with 60 F named as about the minimum where they are effective. That is the practical experience behind the spec sheets, and it is higher than the 41 F number most editorial pages quote.

On r/BuyItForLife, owners favour Santa Fe machines and similar premium brands for durability while openly accepting they pay more for them. That preference maps directly onto warranty length, which is why we weighed the Sentinel HD55’s 6-year coverage and the Waykar 125 Pint’s 5-year compressor coverage so heavily.

A garagejournal.com thread states the exact unmet need behind this topic, asking for a stand-alone dehumidifier that works in freezing conditions and does not need monitoring. Continuous drainage and auto shut-off with memory restart are the specs that answer it. On model-engineer.co.uk and sportsmaserati.com, owners make the same point from the other direction: desiccant machines work down to almost freezing, unlike refrigeration units that are only really effective in the mid 50s to 60s.

Two corrections come up repeatedly. A pistonheads.com owner notes the key point that a dehumidifier dries air, it does not warm it, and classicoldsmobile.com makes the same correction from the other side, noting that dehumidification alone will not cool a garage off. An hvac-talk.com professional adds that an occupied workshop needs fresh air, roughly 60 to 100 cfm, to purge fumes and keep windows dry in cold weather.

Frequently Asked Questions

Which Garage Dehumidifier Should You Buy?

If you want one machine that handles a cold slab without babysitting, choose the ALORAIR Sentinel HD55. It is one of very few units here rated for low-temperature operation with automatic defrost, it drains continuously with no tank, and it carries the longest warranty in this group at 6 years.

If your priority is capacity per watt and flexible drainage in a large workshop, the Yaufey 150 Pint gives you 150 pints per day with pump, tank and gravity paths. If the drain is far away, the Waykar 125 Pint carries the longest pump lift in this group at 16.4 ft. For the lowest power draw and quietest operation, the avylo 90 Pint runs at 235 watts.

For a semi-heated garage rather than a truly cold one, the Waykar 80 Pint has the deepest owner history of anything we reviewed, and the AEOCKY RHEA-001 is the only listing here that publishes a stated minimum operating temperature of 65 F. Whichever you pick, seal the door before you start, and pair a cold garage with one of our cold-climate heat pump guides if the slab itself needs holding above freezing. The best dehumidifiers for garages in cold weather are the ones that keep collecting when the temperature drops, not the ones with the biggest number on the box.