Friedrich Dehumidifiers: Features and Installation Instructions

Friedrich makes buying a portable room dehumidifier simple…build a limited number of high quality models that are plug-and-play and include all the necessary features to accommodate any space up to 2,000 sq. ft.

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Refer to the Freidrich dehumidifier product page for more details and specifications.

  • Top-mount digital touch controls display room temperature & relative humidity level
  • Set humidity level from 30% to 90% RH
  • Low temperature operation to 41°F
  • Washable, slide-out filter
  • 24 hr. ON/OFF timer (timer must be set for each use-no memory)
  • Automatic defrost cycle
  • Auto-restart
  • Built-in casters for easy mobility
  • 6 ft. power cord
  • ENERGY STAR® rated
  • 3 Drainage Options (details below)
  • Sleek, Clean Modern Design: Non-louvered front panel has a clean, stylish appearance that doesn’t accumulate unsightly dust, pet hair and other household debris.

Friedrich Dehumidifier Sizing Guide

Dehumidifier capacity is measured in pints per 24 hours and determined by two factors: room size and the amount of humidity.

Update: The D25 (25 pint) model has been discontinued.

* Information provided by Friedrich
** Product availability and specs may change. Please check Friedrich’s website for the latest information.
Room ConditionsSmall to
mid-size space
100 – 1,000 sq. ft.
Mid-size to
large space
1,000 – 2,000 sq. ft.
Area feels damp and has a
musty odor only in humid
(50 pint)
Very Damp
Area always feels damp &
has a musty odor & may
exhibit damp spots on walls
& floors
(50 pint)
Area always feels and smells
wet and the walls & floors
sweat or seepage is present
(50 pint)
(70 pint)
Extremely Wet
Area has wet floors or exhibits
standing water
(50 pint)
(70 pint)


The Friedrich dehumidifier comes fully assembled, minus the optional drainage parts.

  • A corrugated or rubber water hose is included for the continuous drain (middle of the drain bucket).
  • A vinyl hose is included for the built-in drain pump (left side of the drain bucket).
  • The float is located in the right side of the image – which activates the built-in drain pump or shuts the dehumidifier off when the bucket is full. Remove the tape from the float if using the drain bucket.
Included drain hoses for Friedrich dehumidifier.

3 Drain Options

Drain Bucket

The drain bucket hold 16 pints of water.

Once the bucket is removed, emptied, and re-installed, the dehumidifier will automatically continue operating with the previous settings.

Built-in Drain Pump

Pump condensation vertically or horizontally up to a combined distance of 15 feet. This type of continuous drain fills the drain bucket…once the float activates – the pump turns on to empty the drain bucket.

  1. Locate the built-in pump drain port.
  2. Locate the supplied drain hose with pre-attached locking key.
  3. Push the hose and key assembly into the port until you hear a “click” sound.

Note: To remove the hose and key assembly, push the ribbed portion of the button to unlock.

How to install the built-in pump drain hose for a Friedrich dehumidifier.

Continuous Drain Port

This continuous drain port works by gravity alone, so the hose needs to route downward and into a drain. The drain bucket does not fill.

A standard water hose will also fit the port and threads.

  1. Remove the drain cap and rubber plug. Store the black plug in a safe place in case you need to reinstall it again. The drain bucket is a good spare part storage option since it won’t be filling with water.
  2. Insert the supplied rubber o-ring into the flange end of the corrugated hose. Slide the cap over the other end.
  3. Tighten the cap back onto the threaded fitting.
How to install the continuous drain hose for a Friedrich dehumidifier.

Note: The drain hose needs to flow downward into a drain or sump basin.

How to route the continuous drain hose for a Friedrich dehumidifier.
Make sure the drain hose is flowing downward into a drain or sump basin.

Additional Information

Once the setup and activation was complete, there were a few concerns, and the answers weren’t found in the manual, so I called customer service for clarification.

Q) There is 2.5 -3 minute lag before the dehumidifier starts. This happens when powering up and after reinstalling the drain bucket.
A) This is normal.

Q) The humidistat seems inaccurate…roughly a 5% variance…for turning the dehumidifier off / on based on the humidity % setpoint?
A) Friedrich advises to set the humidity control at the lowest setting of 30% for a day or two. The humidistat will adjust itself to the environment, then setpoint should be more accurate. Note: I’ve realized the humidistat shouldn’t be 100% specific; e.g. a set point of 60% actually turns the dehumidifier off around 57% and on around 63% humidity. Since humidity can rise quickly this creates a buffer to keep humidity levels close to their desired levels without the dehumidifier running non-stop to retain a 100% accurate humidity percentage.