Storing a Dehumidifier Between Seasons
Short answer: When the humid season ends, store a dehumidifier the way the maker's manual describes: clean the filter, empty and dry the bucket, remove and drain any hose, and keep the unit upright on a level surface with air space around it. Read the listing to see which features your unit has, such as a washable filter, a pump, or wheels, because each has its own care steps in the manual. When the next humid season comes, check the unit again before running it.
Start with the maker's manual
When a dehumidifier is no longer needed for the season, the steps to put it away come from the maker's manual, not from a listing. A listing names the features a unit has, but only the manual describes how to clean, dry, and store that exact model. This article explains how to read the listing for the features that affect storage, and what to look up in the manual before you buy, put the unit away, or bring it out again.
What the listing tells you about storage
A dehumidifier listing names the details that determine how much work storage takes. A title that says washable filter means the filter has a cleaning step in the manual rather than a replacement part. A bucket in the listing tells you the water tank has to be emptied and dried before the unit sits. A drain hose or pump in the title means there are extra parts to remove and store. Wheels and handles in a listing describe how the unit is moved, which matters when you carry it to a storage place.
Filter care is covered in the filter care guide, and the choices between a bucket, a gravity drain, and a pump are covered in the drain options guide. The bucket capacity guide explains what a bucket size means on a listing, and the caster and handle guide explains what wheels and handles tell you. A listing that says Energy Star marks a unit as part of the ENERGY STAR program, which the program's own page describes. None of these replace the manual; they help you read the listing before you choose a unit.
Clean the filter, bucket, and case
The manual describes how to clean each part before storage. For a washable filter, the manual gives the cleaning method and how long to let it dry. The bucket is usually cleaned and dried separately, and the case is wiped down. This article does not cover mold cleanup; read the EPA mold pages and the CDC mold page in the sources for guidance on moisture and mold at home.
A filter that is not named washable on the listing may be a part the manual says to replace. The filter maintenance guide explains how to read filter words on a listing, and the manual tells you which step applies to your model.
Dry the bucket and the interior
A dehumidifier that is put away with water left inside is harder to carry, and the manual describes how to empty and dry the bucket and how to dry the interior before the unit sits for months. The manual may include running the unit for a period it states. This site does not publish drying times or moisture removal figures. The manual is the only source for how long your model needs.
Drain hoses and pumps get their own steps
If the listing names a drain hose, the manual describes how to disconnect it and whether it can be coiled and kept with the unit. If the listing names a pump, the manual covers the pump care steps, which may include draining the pump line and keeping the pump dry. A pump unit is a common pick for a basement with no floor drain nearby, and the pump section of the listing matters again next season. The pump guide compares pump listings on stated details.
Where to keep the unit between seasons
The manual describes where a dehumidifier can be stored: a level floor, clearance around the air intake and vents, and a place that stays dry. Keeping the box and packing material is useful for moving the unit later. The labels on the box are a quick reminder of the model name and the features the listing stated. The placement guide explains how listing terms like clearance and level floor read when you shop.
First run after storage
Before the next humid season, check the unit the way the manual describes: confirm the filter is in place, the bucket is clean and empty, the hose or pump connection is correct, and the unit sits level. The manual also describes how to read the display and indicator lights on the first run. If an indicator shows something wrong, contact the maker rather than opening the unit, since the compressor and electrical parts are services a licensed professional or the maker handles.
What to consider when you shop again
If putting a unit away was the hardest part of owning one, the next listing can fix that. A title with wheels and handles describes a unit that is easier to move to storage. A smaller unit in the small and mid capacity groups is lighter to carry between rooms. A pump listing removes the need to lift a full bucket when you drain the unit at the end of the season. The buying guides compare these details across listings, so you can shop on stated details rather than a memory of how a unit handled.
The main dehumidifier guide explains the capacity and drain terms on listings, the small unit guide covers units that are easier to carry, and the pump guide covers pump listings. For a larger next season, the 50 to 99 pint guide and the large space guide compare capacity tiers.
What to pick for your situation
| If you | Pick | Buying guide |
|---|---|---|
| You carried the unit to storage and found it heavy | A listing whose title names wheels and handles, or a smaller unit | Best Small Dehumidifier (2026): 13 Picks by Stated Details |
| You had to lift a full bucket out before storing | A listing with a drain hose or pump so you can drain the unit without lifting it | Best Dehumidifiers with Pump in 2026: 15 Picks by Stated Details |
| You stored it in a spot with no drain nearby | A listing whose title names a pump that lifts water to a sink or drain | Best Dehumidifiers with Pump in 2026: 15 Picks by Stated Details |
| You need a unit that moves between a basement and a first floor | A portable unit with casters and handles in the listing | Best Dehumidifier (2026): Picks by Pints per Day and Drain |
| You only ever used it in one small room or closet | A small unit in the small and mid capacity groups | Best Small Dehumidifier (2026): 13 Picks by Stated Details |
| Next season you expect a larger damp area | A 50 to 99 pint unit or a high capacity unit | Best 50 to 99 Pint Dehumidifiers 2026: 14 Picks by Stated Details |
Questions
Do I need to unplug the dehumidifier before cleaning or storing it?
Yes. The manual describes how to power down and unplug the unit before any cleaning, moving, or storage step, and before you remove the bucket or a hose.
Can I store a dehumidifier on its side?
The maker's manual is the only source for the correct storage position. Most portable listings describe an upright position for transport and storage, but check the manual for your model.
What do I do with a washable filter before storage?
The manual describes how to clean a washable filter and how long to let it dry. A listing that says washable filter means no replacement part is expected; a listing that does not name it may use a filter that is replaced in the manual.
How do I keep water from sitting in the bucket?
Empty the bucket and dry it the way the manual describes. The manual also covers how to dry the interior before the unit sits for months.
Should I keep the drain hose attached when storing?
The manual describes whether the hose is removed for storage and how to coil or bundle it. Keeping the hose with the unit, or with the box, makes first setup next season easier.
What should I check before the first run after storage?
The manual lists the checks: filter in place, bucket clean and empty, hose or pump connection correct, and the unit level on the floor. If an indicator light shows something wrong, contact the maker.
Recent updates
- : First published.