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“How long to run a dehumidifier every day?” This is an excellent question. I get asked by everyone, whether they’ve had a dehumidifier for years or just started using one.

The best answer would be to run your dehumidifier unit 24 hours a day. However, that could end up costing quite a bit of money, and more than you really need to spend.

The Extraction Rate

The idea is to run all the air through the unit as much as possible. This is called your Extraction Rate, and it’s pretty difficult to determine. An average unit in your space, if it was operating correctly, should extract the moisture to around 50 to 55% Relative Humidity.

With this assumption, you can safely run your dehumidifier for about 12 hours a day. That should (again, depending on your unit) run all the humid air in your space through the system at least once. I usually tell people to run their dehumidifier for 10-12 hours a day, and of course, the more the better.

What About Costs?

If you’re concerned about spending too much on your electricity bill, you can try calling your energy company and asking about the “best times.” Usually, the best times to run your unit, that will save you money, is between 10 pm and 7 am — this is when less people are consuming energy, which drives down the rates.

However, if you’re drying your room, you need to have your unit running, and I doubt you’ll be doing this activity in the middle of the night. So it’s okay if you run your dehumidifier during normal hours from a couple of days to as long as required.

You could also split these times. For instance, you could run for six hours during the day and six hours at night. This is perfectly fine, however, you’ll want to get a timer to help you regulate this.

You COULD Invest in Zeolite

If you have variable humidity spaces you can run a system for 24 hours a day without spending as much money as a standard dehumidifier. You can run at nominal costs when you’re just drying and freshening and consistent levels when you’re adding a permanent unit.

If cost is a consideration, I highly suggest you look into buying zeolite for any spaces that need a little something. They are the best bet for keeping your space dry and fresh and saving you money at the same time. I highly recommend them.

 

Zeolite RocksZeolite Packs

Eliminates moisture, damp and musty smells safely and naturally from any wardrobe or room. Reduce mould, mildew, dampness, condensation, odours. Relieve symptoms any time of year! Around the clock protection.

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Or You COULD Invest In A Dampp Chaser

If value for money is important, I highly suggest you look into buying a Dammp Chaser for spaces that need more than expected. They are the BEST in keeping small spaces consistently dry and fresh. I more than highly recommend them.

Dampp Chaser

Eliminates mould, mildew, stagnant air in wardrobes and cupboards, pantries, linen closets, RV’s, boats, rental storage, basements. Reduce mould, mildew, dampness, condensation, odours in your wardrobe and protect your valuables.

 

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How Long To Run Your Dehumidifier?

So to recap, run your dehumidifier unit for at least 12 hours a day. This is a good rule of thumb. Again, it’s okay if you don’t stick to this schedule every day, but be aware that the more your family runs your dehumidifier unit the fresher and cleaner it will be all year long.

If you have any questions about running your dehumidifier, you can ask in the comments below and I will answer them quickly.

Towards healthier living Carol Parr ♥

As Building Biologists, we have acquired knowledge of adverse health effects and recommend effective strategies to reduce occupants’ exposure by eliminating and controlling as many sources of pollutants in order to create healthy indoor living environments that are as exposure-free and natural as practically possible.

We cut out all the fluff and confusion of indoor air maintenance and stripped it down to the bare bones.

Carol Parr

Author Carol Parr

Carol Parr is a Building Biologist and Healthy Home Wizard. She has worked with asthma and allergy sufferers in their homes and work places for over twenty years, specialising in mould, dust mites, chemicals, EMFs and WiFi. When she’s not turning unhealthy rooms into healthier, relaxing and productive spaces, she’s most likely frightening her husband and their children with numerous “let’s see what this does when …” projects.

More posts by Carol Parr

Join the discussion 4 Comments

  • Bette scott says:

    What is the average setting for
    Dehumidifier? we wake up in morning to find all our windows
    Covered with water on the inside
    and our GE machine has collected
    No water. Got any ideas for us

    • Carol Parr says:

      Yes I do! I am unfamiliar with the brand however as a general overview – 1. the machine may be faulty. Check the machine over – clean filter; clean holding container; clean any inlets; motor will be encased for safety; ring GE for maintenance team feedback; motor may be operating inadequately even though you may hear the fan operating. 2. Relative Humidity Setting may be too high – set to 50-55% Relative Humidity, comfortable setting. 3. The machine capacity my be inadequate for the size of the room – we found 16 litre unit most suitable for bedroom, lounge/dining sized room. 4. Type of dehumidifier – a. Refrigerant dehumidifier operates efficiently (21-32 degrees celcius). b. Conventional refrigerant dehum operates efficiently at air above 55% gpp, the warmer and the wetter, the better! c. Low grain refrigerant dehumidifier dries air at a lower dew point 34-40 gpp. d. Desiccant dehum efficient below 30 gpp. Does that help?

  • Charlie says:

    I’m thinking of putting a timer on my humidifier but the owners Manuel cautions that you should operate the unit by switching off or on the power. Says it may cause shock or fire due to heat generation. Unit is a keystone KSTAD70C. Thank you

    • Carol Parr says:

      Thanks for getting in touch. My advice would be to check the specs on your timer and follow their recommendations. All the best!

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