Katenpo Industrial Grade Dehumidifier C7-90L (90L/Day, White/Black)

How much electricity does this dehumidifier consume daily?

The unit draws 870 watts when actively dehumidifying. Actual consumption varies based on humidity levels and room conditions. In auto mode, it cycles on/off to maintain set humidity levels, typically running 8-12 hours daily in moderately damp conditions. This equates to approximately 7-10 kWh daily consumption, costing around £2-3 per day at current UK electricity rates.

Can the built-in pump handle continuous drainage to an outside drain?

Yes, the 5-metre vertical pump can continuously drain water through the included 2-metre hose. The pump handles vertical lifts up to 5 metres, making it suitable for basement installations draining to ground-level external drains. For longer horizontal runs, additional hose can be connected, though pump efficiency decreases with distance.

What's the difference between the three operation modes?

Auto mode maintains your chosen humidity level (30-80%) by cycling the compressor on/off automatically. Continuous mode runs constantly for maximum moisture removal in severely damp conditions. Internal drying mode operates the fan without cooling to dry internal components and prevent mould growth when the unit isn't actively dehumidifying.

How often do the washable filters need cleaning?

Clean the washable filters every 2-4 weeks depending on dust levels and usage frequency. In dusty environments or continuous operation, weekly cleaning maintains optimal airflow. The anti-mould coating helps prevent bacterial growth between cleanings. Simply rinse with warm water, allow to dry completely, then reinstall.

Is this suitable for drying laundry indoors?

Absolutely. The powerful 550m³/hour airflow combined with moisture extraction significantly reduces indoor drying times. Position the unit near hanging laundry in a closed room for best results. Many users report clothes drying 2-3 times faster compared to air-drying alone, whilst preventing the musty odours associated with slow indoor drying.

How does the child lock function work?

The child lock prevents accidental changes to settings by disabling the control panel buttons. Activate by holding the lock button for 3 seconds until the display shows the lock symbol. This prevents children from altering humidity settings, timer functions, or accidentally switching modes during operation.

What happens if the 8-litre tank fills when using continuous drainage?

When continuous drainage is connected and functioning properly, the tank remains empty as water pumps out automatically. If the pump fails or drainage becomes blocked, water collects in the tank as backup. The overflow alarm activates when the tank nears capacity, automatically shutting down the unit to prevent spillage.

Can this unit operate effectively in unheated spaces like garages?

Yes, the automatic defrost function enables operation in cold conditions down to approximately 5°C. Below this temperature, ice formation on the coils reduces efficiency. The defrost cycle periodically melts accumulated ice to maintain performance. For consistently cold spaces, consider insulation or supplementary heating for optimal moisture removal.