Waykar CTH150PA Pump Dehumidifier review

The Waykar CTH150PA’s defining difference is its pump, not a higher published removal rating than the CTH150A. The shared CTH-A manual lists 50 pints per day at 65°F/60% RH and 150 at 95°F/90% RH for both 150 models. It documents a 5-meter pump hose and a maximum 5-meter vertical lift for the PA, making this the one to investigate when a normal downhill drain is not possible.

I checked Waykar’s exact CTH150PA U.S. page and offer and the Waykar CTH-A family manual. The exact offer identifies SKU AZ-CTH150PA; the manual distinguishes its pump port and hose from the non-pump CTH150A.

Waykar’s CTH150PA page links this white cabinet view with a drain hose. The image does not show the pump’s internal reservoir or prove a particular vertical route; those limits come from the manual.

A 150-pint label with a 50-pint standard rating

The manual’s table lists 50 pints/day at 65°F/60% RH, 73 at 80°F/60% RH, 115 at 86°F/80% RH and 150 at 95°F/90% RH. The headline therefore should not be read as 150 pints in a cool basement. Waykar’s “up to 7,000 square feet” is a coverage claim, not a room-by-room guarantee; separate rooms and closed doors limit how much air a single portable unit can treat.

The exact family manual lists a 7.1 L/1.9-gallon tank, 115 V/60 Hz, 783 W rated input and R32 refrigerant. The Waykar product page gives 750 W, so the two manufacturer figures do not agree. I leave a definitive wattage and operating cost unresolved rather than choosing one. The manual shows a 2.01 L/kWh IEF. The page title says “2025 ENERGY STAR,” but its body also calls the unit “Most Efficient 2024”; treat the certification mark as the manufacturer’s claim and do not infer that a 2024 award is a current-year ranking.

The pump solves a specific layout problem

The included pump hose is 5 meters/16.4 feet long, and the manual lists the same 5-meter/16.4-foot maximum vertical height. Those are two related limits, not extra reach to add together: an almost-full vertical lift leaves little hose for bends or horizontal travel. Measure the actual run and preserve slack rather than assuming that a full 16.4-foot rise also permits a long side route. The pump button and pump port are specific to the CTH150PA; the CTH150A does not have the pump.

The pump does not start draining the moment you switch it on. The manual says it begins when the internal reservoir reaches its maximum and stops when that reservoir empties. It also says that if the full-tank alarm has triggered, empty the tank before activating the pump. These instructions make the pump useful for a measured uphill route, but they do not confirm operation with the collection tank removed. If bucketless running is essential, treat the requirement as unanswered and choose only after the manufacturer confirms the setup.

Like the CTH150A, the CTH150PA also supports the included 3.3-foot gravity hose and tank collection. The gravity outlet must be at least 3.94 inches lower than the port, and the manual supplies no maximum gravity-route length. A nearby floor drain is simpler than a pump route; the pump has value when the destination is higher or farther, within its documented hose and lift limits. A 17-foot vertical rise exceeds the stated maximum.

Conveniences—and their limits

Auto mode sets humidity to 55% below 64°F, 50% from 64–77°F and 45% above 77°F, and locks the fan at low. Manual control permits 35–80% RH targets by five-point steps; the 30% selection is a continuous-run setting. There are three fan speeds outside Auto, a one-time timer up to 24 hours, power-off memory, automatic defrost and a full-tank alarm/shutoff. The timer is not a repeating schedule, and a power interruption clears its setting. No reliable noise, dimension or weight figure is established here, and the manual sets a 41–90°F operating range, so automatic defrost does not make it a cold-space unit.

The manual warns that R32 is flammable and calls for a minimum 43-square-foot room area for operation and storage. It directs repair and refrigerant work to trained service personnel. These are setup and service constraints, not reasons to expect a specific humidity result or mold-remediation benefit.

When the pump earns its place

Choose the CTH150PA if you need the 50-pint standard class and have a verified discharge route that exceeds gravity drainage but stays within the 16.4-foot pump hose and lift limits. If the drain is already lower than the appliance, the CTH150A has the same published capacity and avoids a pump you do not need. Consider the CTH120A if its 32.46-pint standardized rating is enough and the 150 class would be oversized. Do not select the PA for an unmeasured “large area” claim, a 17-foot rise, confirmed bucketless use, app control, or an energy-cost promise the conflicting power figures cannot support.