kbstern, No matter where you decide to put your safe (within reason of course) if you buy a Golden rod and burn a low wattage light blub you won' t have a moisture problem in your safe.Mine is in my garage. Temperatures fluctuate along with the Florida humidity. Knock on wood I have never had the slightest bit of rust in the 15 years I' ve lived in this location.For an added precaution I bought some of the Celotex insulation board ( foil covered). I built a wooden frame around my safe and and put the Celotex board on it.Keeping the board close to the safe' s exterior.It keeps my safe from fast temperature changes from the ambient temperature changing.In summer if it gets to warm I simply unplug my low wattage light bulb.Before putting any gun back in it' s wiped down with a sheep skin impregnated with RIG.One other thought. For safety and security reasons make sure you bolt your safe down.The heated rod and low wattage light bulb are allot cheaper then running a dehumidifer or two.
Ruger Redhawk