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Help, I have condensation

Most customers who visit this website are buying their first ever dehumidifier and are likely to have been driven towards buying the dehumidifier because of a problem to do with damp or condensation in their home. In it's mildest form this will be condensation on a window, in it's most extreme form this will be condensation on a wall coupled with mould growth, discolouration of the wall and associated health issues.

Whatever the issue, dealing with it and sorting it out is actually very simple and best of all you will probably save money!

To understand how simple the problem is to solve, you need to understand why you have excess moisture in the first place.

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There is moisture in the air all around us, the thing is you cannot see it. This moisture comes from rainfall, drying washing, bathing, showering, cooking, breathing etc. Too little moisture causes dry skin and static shocks, too much moisture causes mould and condensation issues. So the moisture is always there, so why is it that you do not always see it?

Condensation forms on cold surfaces, there is a relationship between the air temperature within a room, the amount of moisture in the air and the surface temperature of the wall or window in question, but basically the colder the surface, the more likely it is that condensation will occur. Think about a window with condensation on it, when is it most likely to happen, in the morning? Or rather it happens overnight as temperatures outside drops and the glass becomes colder and you notice it in the morning when you wake up. It happens when the glass is cold enough. Now does it happen on the wall to the left or right of the window? In most cases the answer will be no. Is this because there is more moisture in front of the window than there is on the wall to the left or right? No. The level of moisture will be the same, the difference is in the temperature of the glass, it is colder than the wall.

Click here to view our range of dehumidifier to solve your damp problem.

So to solve the problem you have three choices, one increase the temperature of the glass so that it is the same temperature as the wall, two reduce the air temperature of the room so that the difference between the window temperature and the air temperature is not so great and three reduce the amount of moisture in the air.

  1. Increase the surface temperature of the glass.
    This is why radiators are normally positioned under a window, but is it economic or desirable to have the radiator on all night? Probably not.
  2. Reduce the room temperature.
    Not a method that is guaranteed to work and do you want to live in a cold room?
  3. Reduce the amount of moisture in the air.
    This solution is the most practical and it makes sense. You want to stop water droplets from forming on the window so you remove some moisture from the air. There is a simple logic and relationship between the two and it is easy to understand.

How to remove the moisture from the air?

This is what a dehumidifier does and this is what you want to achieve. Better still because the air is drier the air will feel warmer (no damp chill effect) and it will easier to heat (less water molecules to heat up).

Do I need a dehumidifier in every room?

No, one dehumidifier positioned centrally will do the job. Wherever you put the dehumidifier it will become the driest point in the house and the excess moisture from the different rooms will migrate towards the dehumidifier in order to balance out this inequality. The dehumidifier draws the air through itself and removes the excess moisture.

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