Understanding Dehumidifiers

If you live in Ireland, you're no stranger to dampness. Between the long rainy seasons and cooler indoor temperatures, it's almost impossible to escape condensation on windows, musty smells on clothes, and that heavy feeling in the air.

For me personally, buying a dehumidifier was a complete game changer. Before, every morning I'd wake up to windows dripping with condensation. Clothes, even after a day on the drying rack, would carry a damp, almost mouldy smell. Running a dehumidifier for just a few hours a day completely transformed my home — no more water streaming down the windows, and laundry dries properly within a day.

If you're considering getting a dehumidifier for your house in Ireland, here's what you need to know.

Ireland's maritime climate means we have high humidity levels all year round — often 70–90% indoors, compared to the ideal indoor range of 40–60%. Older houses, common throughout Irish towns and countryside, often have poor insulation and ventilation, making the problem worse. Common issues caused by excess humidity in Irish houses include:

• Window condensation leading to rot and mould around frames
• Mould growth on walls and ceilings
• Musty odours in clothes, upholstery, and carpets
• Aggravation of allergies and respiratory issues
• Damage to electronics, books, and furniture

Left untreated, moisture doesn't just cause discomfort — it can lead to costly repairs and serious health concerns.

Dehumidifiers work by pulling in moist air, removing the excess water, and releasing drier air back into the room. Most home units can collect 10–20 litres of water per day — you'd be amazed how much hidden moisture is lurking in your walls, carpets, and air!
Since using mine:

The air feels noticeably lighter and fresher.
• Condensation is practically gone, even in the colder months.
• Clothes dry indoors much faster, without picking up that dreaded damp smell.

And it doesn't have to run constantly either — a few hours per day, or using a model with a built-in humidity sensor (hygrostat), can keep levels perfectly balanced.

When shopping for a dehumidifier in Ireland, there are a few important factors to consider:

Room Size
Pick a model suitable for the size of your space.

• For small rooms (bedrooms, home offices), a 10–12L/day unit is enough.
• For larger areas (living rooms, kitchens), aim for a 16–20L/day model.
• Basements or older stone houses may need an even bigger capacity.

Energy Efficiency
Since you'll likely use it several hours a day during damp months, look for models rated highly for energy efficiency.
Some newer models even have low-energy modes perfect for overnight operation.

Noise Levels
Especially if you plan to run it in bedrooms or living spaces, check the decibel (dB) rating.
Good residential dehumidifiers typically operate between 35–45 dB, which is about the same as a quiet conversation.

Since getting my dehumidifier, the changes in daily life have been hard to ignore:

• No more wiping down windows every morning
• Fresh-smelling clothes and bedding
• Reduced heating bills because dry air heats more efficiently
• Healthier indoor air, easier breathing
• Protection of furniture and electronics from long-term moisture damage

It's one of those small appliances you wonder how you ever lived without.