Best gun vault dehumidifier? Can I store ammo in fire vault?

[scottryan]

I'm resurrecting this thread as I am searching for a way to keep my humidity level low inside my walk in vault. It is heated and cooled and has a return vent. Some of my well worn guns collect a little rust from time to time. I have a plug in outlet and was thinking about getting one of those canister dehumidifies until I read this. Any suggestions? Thanks.

Do you have a drain in the floor? Or some type of pipe going to the outside? I would get a real dehumidifier and run it into the drain or pipe.

[Rebel Rifle Ordnance]

No drain, solid concrete walk in vault. Now the question is which one should I buy? There are so many models of electronic dehumidifiers.