Does Running a Dehumidifier All Day Waste Electricity? Energy-Saving Tips Revealed!

In Hong Kong's humid weather, a dehumidifier is a lifesaver. But if you don’t use it properly, leaving it on all day can rack up your electricity bill. So, how can you get the most out of your dehumidifier while keeping power usage low? Here are some simple yet effective tips to help you save electricity while staying comfortable!

Choose an Energy-Efficient Model: Check the Energy Label

When buying a dehumidifier, always check the energy label. Since September 19, 2011, dehumidifiers have been included in the mandatory energy efficiency labeling scheme, so the label will show the energy rating and annual power consumption. Smart consumers should prioritize models with a “Grade 1” energy rating (green label), as they offer the best energy savings. If you’re comparing two Grade 1 models, take a closer look at the Energy Factor (EF) to see which one is more efficient.

EF = Effective capacity (liters) ÷ Monthly power consumption (kWh/month)

Correct Placement for Maximum Efficiency

Where you place your dehumidifier makes a big difference in how well it works. Place it in an open, well-ventilated area, away from corners, and ensure the air intake and outlet are not blocked. This will help the dehumidifier work more effectively. Avoid placing it in direct sunlight or near heat-producing appliances, as this can reduce efficiency and increase power consumption.

Close the Windows When Running the Dehumidifier

Always keep your windows and doors closed when the dehumidifier is on to prevent outside humidity from coming in. This simple trick makes your dehumidifier work more efficiently, helping you save on electricity.

Boost Efficiency with a Fan

For even better performance, use a fan or air circulator alongside your dehumidifier. The fan will help air circulate faster, allowing the dehumidifier to remove moisture more quickly and efficiently. This is especially helpful in larger rooms.

Clean Regularly to Keep It Running Smoothly

One of the best ways to keep your dehumidifier working efficiently is to clean it regularly, especially the filter. A clogged filter can block airflow, making the dehumidifier work harder and use more power. Regularly checking and cleaning the filter will ensure it operates at its best and keeps energy consumption low.

Is Running a Dehumidifier All Day a Power Drain?

Many people wonder, “Does running a dehumidifier all day use a lot of electricity?” You can easily calculate your dehumidifier's energy consumption using this formula:

Power consumption = Dehumidifying capacity (liters/day) ÷ Energy factor (liters/kWh)

For example, if you have a 10.5-liter dehumidifier with a Grade 1 energy rating and an EF of 2.47, the daily power consumption would be 10.5 ÷ 2.47 = 4.3 kWh. This calculation helps you understand the dehumidifier's energy use so you can make informed decisions on how long to run it.

Combine Air Conditioner and Dehumidifier for Efficient Use

Sometimes, using your air conditioner’s dehumidifying mode together with your dehumidifier can lead to better energy savings. While air conditioners have strong dehumidifying power, they also consume more electricity. If you only need slight dehumidification, try cooling the room first with your air conditioner and then using the dehumidifier to maintain low humidity. This combination saves power while giving you optimal results.

Inverter Technology for Extra Savings

Just like air conditioners, newer dehumidifier models now come with inverter technology. Inverter compressors automatically adjust their speed based on humidity levels, maintaining effective dehumidification while minimizing power use. If you need to use a dehumidifier for extended periods and want to save energy, an inverter model is a great choice.

Hong Kong’s humid weather makes dehumidifiers a must-have appliance, but improper use can lead to unnecessary power waste. By following these energy-saving tips, you can significantly reduce your electricity consumption and cut down on your power bills.

We hope this Moorgenzine article helps you understand how to save energy when using your dehumidifier. If you want to experience how smart home technology can enhance your life, feel free to visit Moorgen’s showroom in North Point, Hong Kong, for a hands-on look at True Smart Home living.