Waykar CTH120D 120-PPD dehumidifier review

The Waykar CTH120D occupies the middle capacity tier of the fixed-vent CTH-D family. Its 120-PPD label is measured at 95°F/90% RH; the comparable ENERGY STAR Appendix X1 result is 32.46 pints per day. It adds meaningful standard-condition capacity over the CTH80D, but it still has a tank-and-gravity setup rather than a lift pump. The “D” suffix matters: this is not the auto-swing CTH120B.

The captured U.S. product page maps CTH120D to variant 47993814122734 and GTIN 717623189950; I used that exact selection, the CTH-D family manual and ENERGY STAR record 4591184. The linked page image is shared across the three D selectors, so it identifies the product family but does not distinguish the 80-, 120-, or pump-equipped configuration.

Where the 120-pint label helps—and where it does not

The conditions behind the rating change the number substantially. Waykar’s manual gives the CTH120D 120 pints/day at 95°F/90% RH, 48 at 80°F/60% RH, 72 at 80°F/80% RH, and 32 at 65°F/60% RH. ENERGY STAR Appendix X1 is 32.46 pints/day. That clears the questionnaire’s 25-pint standard-condition threshold but not its 35-pint threshold. The rating does not tell you how quickly a specific basement will dry; room leakage, temperature, set point, and continuous drainage all affect operation.

ENERGY STAR lists a 2.01 L/kWh integrated energy factor, 343 kWh annual energy use, and certification, but not the Most Efficient designation for this record. The manual rates input at 470 W and 5.0 A on 115 V/60 Hz. Compared with the CTH80D, this is a larger published removal tier, not an entirely different water route: both use a 1.2-gallon tank or gravity drainage. The CTH150PD is the step to consider when the 32.46-pint standard rating is too low or when a pump route is necessary, though it still falls just below a strict 50-pint Appendix X1 requirement.

Its water path is gravity, not a pump

The CTH120D’s tank is 4.6 liters/1.2 gallons in the model-family manual. A full tank triggers a reminder and automatic shutoff; it is not a large reservoir for long unattended operation. The alternative is gravity drainage. The manual describes an included 3.3-foot hose, a smooth downward route, and an outlet at least 3.94 inches lower than the drain port. Measure the actual path to a floor drain before choosing this model; the hose length and elevation requirement both matter.

No pump is documented for the CTH120D. “Pump Optional” is part of the family page heading, while the selected product SKU and manual assign pump drainage to CTH150PD only. A CTH120D cannot be treated as pump-ready merely because a higher-capacity sibling has a pump. The manual also leaves tankless operation unknown. If your space has no safe gravity destination and you do not want to empty a tank, this is the wrong CTH-D option.

Fixed discharge, automatic humidity control

Waykar identifies this listing as a fixed-vent configuration. Its outlet is not a substitute for the manually documented up-and-down swing function on CTH-B versions. For a room where moving airflow direction is a must, compare those exact model codes and their separate water-handling options rather than assuming the CTH120D also swings.

The CTH-D manual does document a temperature-responsive Auto Mode: the target is 55% RH below 64°F, 50% from 64°F to 77°F, and 45% above 77°F. In this mode the fan defaults to low and cannot be adjusted. In regular Dry Mode, the unit supports 30%–80% RH targets in five-point increments and offers three fan speeds. A 24-hour timer, automatic defrost, restart memory after power loss, and low-temperature operation down to 41°F are also documented. Auto Mode is useful if you prefer a fixed humidity strategy tied to temperature; it is not an app or remote-control feature. ENERGY STAR says the exact model is not connected-capable.

Placement and evidence limits

The manual recommends at least 54 square feet of space and 18 inches of clearance around the unit. It shows caster wheels and requires operation between 41°F and 90°F. Neither the exact page nor the model manual supplies a cabinet width, height, dry weight, or measured sound level. The “super quiet” phrase in the product title is not enough to compare decibels. Also, the product-page “Detailed Information” table names CTH80B/CTH120B/CTH150B/CTH150PB in its tank and pump discussion; I do not reuse those B-code facts for this D-coded selection. The D manual is the source for its 1.2-gallon tank, fixed-vent identity, and non-pump operating plan.

Who should choose the CTH120D?

Consider it if 32.46 pints/day under Appendix X1 clears your threshold, you can use the fitted tank or a lower gravity drain, and the fixed outlet suits the room. It is a poor fit for a required pump lift, a strict 35-pint standard-condition minimum, automatic outlet swing, app control, bucketless use, or an installation with a raised drain. Confirm “CTH120D” on the chosen selection: the similar CTH120B has a different suffix and documented moving airflow. A page’s large 120-PPD headline is not a reason to skip the rating conditions or water-route check.