How To Dehumidify Your Gun Safe

how to dehumidify safe

Your gun safe can withstand fire, take a few blasts and even survive a fall from the fifth fall but one thing it cannot handle is moisture. Being dark, damp and shut-off from the world, a safe is a perfect breeding ground for mould, mildew and fungi. Unfortunately, there isn’t much that you can do about this situation, it just happens to each and every gun safe. And, if you happen to live by the coast or in a highly humid place, then you better store documents and fragile items in sealed pouches or zip bags inside the safe.

This brings me to a simple solution – gun safe dehumidifier. I always found it funny how many folks spend hundreds of dollars on a gun safe but never think about a dehumidifier. We all have used a dehumidifier in our car, or inside the house for the storage shed our cabinets etc. It’s just a simple case of putting one in the safe! Until the first few documents and gun barrels start catching mould, one never think of getting the safe dehumidified.

Why A Dehumidifier

A dehumidifier eliminates moisture from its immediate surroundings. This is its purpose but with regards to a gun safe, it must be able to soak in moisture from every nook and cranny rendering it dry and completely free of any humidity. So why exactly should you dehumidify your safe? Well, metal has a nasty habit of rusting or corroding if exposed to moisture for too long. Since, your guns and the safe itself is metal for the most part, you are sure to witness paint chippings, rusting and deformation over time, if you don’t use a dehumidifier. Moisture can also get deep inside the crevices of a safe causing it to rust from the inside. Not only does it reduce the lifespan of your safe but also gives it a stale stench that grows in intensity over time.

Types Of Safe Dehumidifiers

There are plenty of safe dehumidifiers in the market and all can be grouped either as a desiccant or an electric dehumidifier.

Desiccant is a simple sponge like material that absorbs moisture passively from the immediate atmosphere, helping prevent humidity levels from rising past a certain point in a confined space. This is an excellent option for folks who don’t have an electric outlet near the safe or don’t want to drill holes in their safe to get wires running into them. A good quality desiccant can last for well over 4 months. The biggest advantage of a desiccant is that it can be reused – simply bake the desiccant in an oven for a couple of hours as per the instructions and it is ready to go again.

The more popular electric dehumidifier is highly efficient in removing moisture from a gun safe. In fact, it actively eliminates moisture by heating the internal environment and using an exposed heating element. Called the ‘golden rod’, this component in any electric dehumidifier reaches 140 degrees and above instantly evaporating moisture that may come in contact with it. Moreover, high temperatures inside a gun safe help prevent condensation from setting in. Whatever water molecule remains in the form of moisture tends to evaporate and escape out from the crevices and slits of the safe. Electric dehumidifiers are especially effective in rooting out moisture from within the safe’s own internal structure. The only problem with these dehumidifiers is that they use wires or cords that need to be constantly connected with a power source so expect a few running wires out of the safe.

There are a few rechargeable electric dehumidifiers available nowadays. Smaller, easier to handle and with a decent lifespan, these dehumidifiers work exceptionally well in tandem with a desiccant at keeping your prized possessions dry and secure all the time.

Installing An Electric Dehumidifier

The very first thing you must find is an opening on your safe’s external walls. Almost all safes provide a tiny slit on the back surface or a hole in the bottom of the safe that can be used to run wires in and out of the safe. Once you locate this hole, it is just a matter of installing the dehumidifier onto either of the walls by bolting it to the surface and connecting the wires to a power source.

Which Is Best

Rechargeable, electric dehumidifiers and desiccants, all perform a similar task. You can keep any one of them in your safe or even combine a desiccant with an electric dehumidifier for better results. It all depends on how often the power goes out, whether you plan on storing the safe away from any power source and if you have a hole in your gun safe.

I have shortlisted a few dehumidifiers on the page, Top 5 Dehumidifers For All Purposes. Feel free to check it out!

2 Responses to “How To Dehumidify Your Gun Safe”

  1. HENRY E REBMANN sr says:

    How do you pass the dehumidifier wire past or through the gypsin board?

  2. Bobby Jones says:

    Electric Heaters DO NOT “Dehumidify”.
    They only raise the temperature and so decrease the “Relative” humidity. An 8 or 10 watt incandecent night light will do the same thing but the rod IS much less dangerous.

    Raising an 80 degree safe to 100 degrees will reduce RELATIVE Humidity from 80% to about 42%.

    This DOES help prevent rust and mold . . .

    . . . but don’t say they are dehumidifiers – the amount of water in the air is the same. If the heater quits the relative humidity goes right back up again.

    Go to Hobby Lobby and get a BIG bag of desiccant cheap and just pour it into some socks and put a bull-clips on ’em and toss ’em in. Combine this with your heater and you have a very safe safe !

    ALSO – my multi-channel Thermo-Hygrometer works through my metal safe and metal ammo cans so I can see the Temp and RH in each one and know when to reset the desiccant.

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