How to use a dehumidifier and where best to put it around the house

Where shall I place my dehumidifier around the house?

We get lots of questions asking us how to use a dehumidifier and where best to put it around the house. It’s best to place it somewhere central in the house, being sure to think about where your sources of moisture are. Moisture problems like damp and mould are typically likely to arise in the bathroom, where showers and baths create lots of steam. And so, it is best to position your dehumidifier on the landing. Here, the dehumidifier will create a dry spot; and as long as internal doors are kept open, any moisture from the bathroom or anywhere else in the house, will migrate here. The dehumidifier will draw in the moisture, turning it into water.

If the unit is set up in a relatively permanent position and if you do not wish to empty the tank manually, you could set up your dehumidifier with continuous drainage. When using continuous drainage via a hose on its own, the water is drained from the dehumidifier via gravity. This means the hose must go downhill, without any kinks or blockages, to allow the water to flow.  Ensure the end of the hose is lower than the drainage port and the water can flow downwards into a sink or drain. Because of this, it can be best to place the dehumidifier on the kitchen side (to give it the height), next to a sink, so the hose can drain the water straight into the sink and down the drain. 

If the hose can only go uphill, then you could install a water pump. If you want to learn how to install this, you can watch our YouTube video

 

The beauty of Arete®

In general, dehumidifiers need to be about 30 cm away from the wall. And if positioned in a hallway, landing, or a flat or small house, that means it’ll be in the way. Very annoying. 

But that’s the beauty of Arete®, as this is the only dehumidifier that solves that problem. Designed here in the UK, this machine has been made with British and European customers in mind. We know that you’ll probably place your dehumidifier in a landing or a hallway, so we have worked hard to engineer an appliance that doesn’t take up unnecessary space and becomes a nuisance to own. With Arete®, you can put it right up against the wall, and it will still do the job.

 

What target relative humidity should we set our dehumidifier to? 

The optimum humidity for UK homes is between 50%rh and 55%rh. This is dry enough to remove condensation and prevent damp and mould issues, but not too dry that it would cause other issues such as dry, itchy skin and sore throats.

In colder months, some people may find this target isn’t low enough to reduce condensation on their windows. In these circumstances, the target humidity for your dehumidifier to reach can be reduced to around 40%rh.

But in general terms, aim for 55%rh. That’s what museums use when they’re looking after their collections; so, if it’s good enough for museums, it’s good enough for us. 

 

Can I move my dehumidifier from room to room?

You can. However, it is best to keep your dehumidifier in one place. This is because the dehumidifier brings moisture towards itself, creating a dry spot in the process. Let it do the job by leaving it in one place, and leaving all internal doors open. Get used to bringing the laundry to the dehumidifier, rather than moving the dehumidifier to the laundry. 

 

Dust filter for Arete® One

What about the filter?

The dust filter is very important as it stops dust and dirt from getting into the machine. It is extremely important to clean the filter on a regular basis. Without regular cleaning, dirt and dust will build up over time and stop air passing through it. When the air can’t pass through it, the machine starts to use more energy, so your electricity bill will go up. It will also cause the machine to make more noise. So it’s in your vested interest just to keep the filter clean.

If you’ve got a HEPA filter, when it turns from white to dark gray, it’s ready to be disposed of in the general waste. It may not sound very environmentally friendly, but the filter collects all sorts of bacteria, which no one wants entering the recycling system. To deal with it correctly, it’s best to dispose of it in the general waste.

 

Save money on your heating bill with a dehumidifier

Having a dehumidifier in the home turns all damp air into dry air, which is makes it far easier for your central heating system to heat your home. This is because all of the extra moisture in the air needs to be warmed up before you can start to feel warm.

A dehumidifier keeps the relative humidity in the house at a sensible level. It’s not too dry that it will cause you any problems, but at a level where you won’t get issues of damp mold and condensation and one that makes your heating system more energy efficient.

With a dehumidifier, you’ll start turning down your thermostat, and you’ll save money on your heating bill. Yet another benefit that comes from owning a dehumidifier.

We’d love to hear your ideas and questions, so please feel free to share them with us by leaving a message in the comment section below.

 

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44 responses

  1. Hi – we had a problem with having a carpet cleaned in a basement – the carpet cleaners didn’t remove all the water and as a result we had soaking wet underlay and mould growing up the walls (the house was empty and the basement unventilated). I bought a MeacoDry Arete® One 20L Dehumidifier / Air Purifier to help sort this out – obviously having removed the wet underlay. However I don’t know what I should put the humidity level at in order to dry the room out? I had assumed it should be as low as possible, at least until the room is properly dried, but then I saw your article which says 40-55%. What’s the best humidity level in order the dry the basement out properly please?

    1. Debbie,

      Thank you for sharing and sorry to hear about the issue. Select a dry setting that works for your case, presumable no one is living in the basement right now, I’d recommend run your dehumidifier on continuous mode in order to help accelerate the drying process. Please refer to your user manual for more information around continuous operation.

      Kind regards,
      Omar@Meaco.

  2. Meaco are the best dehumidifiers and I’ve been through a few top names! In the winter especially but most of the year we keep it going in the bedroom as it’s prone to damp. We don’t have a problem with noise from the air filter. Before this coming winter we’ll invest in another for the kitchen/bathroom area as we can’t keep the doors open, it’s too draughty!

    1. Catherine,

      Thank you for taking the time to share, we do offer excellent products and unlike most that are available on the market. Long may your unit continue to extract!

      Kind regards,
      Omar@Meaco.

  3. Can a low energy platinum range dehum be placed with the front of the machine against wall if the air intake facing away from the wall?

    1. Spen,

      Thank you for your enquiry, just ensure there is at least 30cm of space around the unit to enable adequate air flow. The air inlet and the air outlet must not be covered whilst the dehumidifier is in operation and it will be fine.

      Kind regards,
      Omar@Meaco.

    1. Kim,

      Thank you for your enquiry regarding leaving the dehumidifier on continually, in short, you can – please read on below to get a better understanding of what happens when you do so.

      MEACO CONTROL LOGIC
      When the room relative humidity is more than 3%rh below your target relative humidity the dehumidifier will stop drying the air, but the fan will continue to run for a few minutes. If the relative humidity is stable,
      then the dehumidifier will go to sleep for 30 minutes. After 30 minutes the dehumidifier will wake up and sample the air with just the fan running so that the relative humidity sensor can tell the control panel what the room relative humidity is, if the relative humidity is more than 3%rh above the set point then it will start to dehumidify again, if not then the fan will go to sleep again for another 30 minutes.

      I hope that helps,
      Omar@Meaco.

  4. Can I run it without the filter in order to save energy and reduce noise? Would this harm the machine?

    1. Peter,

      Thank you for your question, yes you can use the machine without the HEPA filter, doing so causes no harm to the machine, it will only act as a dehumidifier.

      When using only the dust filter it’s best to maintain it’s health and prevent blockages which will lead to a more noisy machine, clean every 2 weeks.

      Please follow the cleaning instructions provided in the user manual.

      Kind regards,
      Omar@Meaco.

    1. Thank you for your enquiry,

      The answer is yes, please read below for more information:

      Moisture problems like damp and mould are typically likely to arise in the bathroom, where showers and baths create lots of steam. And so, it is best to position your dehumidifier on the landing. Here, the dehumidifier will create a dry spot; and as long as internal doors are kept open, any moisture from the bathroom or anywhere else in the house, will migrate here. The dehumidifier will draw in the moisture, turning it into water.

      Kind regards,
      Omar@Meaco

  5. Will the dehumidifier draw moisture from a toilet bowl rather than from the bathroom if the machine is running on the landing?

  6. If I leave my dehumidifer in the hallway all the time , is it ok to put the wet washing on the clothes airer in there too?

    1. Thank you for your question, the simple answer yes, you can do so, but please also read on, below to find out the best practice principle for an efficient way of drying laundry.

      In order to dry washing efficiently you should position a Laundry Drying dehumidifier next to the washing in a small room (the kitchen perhaps) and close the door. The dehumidifier will dry the air within the kitchen to around 35%rh and the washing will release its moisture from the laundry to be in equilibrium with the air in the room. The water that is released into the air will be collected by the dehumidifier and will not be able to travel around the property and will therefore not be able to create damp issues. If you are able to position the washing so that the dry air coming out of the dehumidifier hits the washing then it will dry even faster (think windy day outside and washing on the line).

      I hope this helps.
      Omar@Meaco.

  7. I need one in my garage and out building and they both get cold as the temp.changes to cold and my out side shed gets damp when it rains .Should I still
    run them in the winter ?

    1. Thank you for your enquiry, based on your information a desiccant dehumidifier would be a good fit, working well down to 1°c, see any of our DD8L models.

      I hope this helps.
      Omar@Meaco

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