Should you use a dehumidifier for your classic car this winter?

If you own a classic car, a dehumidifier can reduce the likelihood of rust and prevent mildew from forming inside it. Here's how to buy one.

Many classic car owners put their vehicle into hibernation over the winter months. However, even a car stored in a garage can degrade in damp, winter air. That’s where using a dehumidifier comes in.

Used correctly, a dehumidifier will minimise the effects of rust on body panels, stop mildew growing on the seats and prevent carpets and other trim from getting soggy.

A dehumidifier is equally beneficial if you are storing a motorcycle, machinery or tools in a garage. So how do you choose the right one? Read on for our quick guide.

Winter takes its toll on classic cars – even those that are safely locked away until the spring. But a dehumidifier can help. It could save you money in the long run, too.

For unheated garages, a desiccant system is preferable to a compressor unit, as they operate at lower temperatures. They also tend to be lighter, which could be a factor if you intend to move the dehumidifier.

Crucially, from a classic car perspective, desiccant dehumidifiers have the ability to reduce the relative humidity to 40 percent or lower – below the rusting point of metal.

A basic compressor unit will be ineffective at temperatures below 15ºC, so isn’t well suited to winter use in the UK. 

Choosing a unit with an automatic restart function means the dehumidifier will kick back in after a power outage, rather than going into standby mode. Meanwhile, a unit with continuous drain-off means you have the option to feed a hose into a sink, drain point or separate holding tank.

Dehumidifier manufacturer Meaco has the following advice for motorists storing a car in a garage:

Desiccant dehumidifiers are available from around £150. Needless to say, that’s a significantly cheaper option than repairing a rusty vehicle or replacing a set of damp carpets in the spring…

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