Controlling indoor humidity to protect my guitar collection

I’ll never forget the feeling I had the day I first walked into a music store when I was 12-years-old.  I had intended on playing snare drum in my middle school marching band and was there to buy sticks. But it was the guitars that completely captivated my attention and possessed my mind.  I saw the guitars that all of greats play, like the Fender Stratocasters and Telecasters and the Gibson Les Pauls and dazzlingly beautiful, red SGs. Looking at price tags well over $2,000 left me assuming that these guitars would always be unattainable.  I could have never guessed that by 40 I’d have a dozen guitars to my name, with beautiful models of all four mentioned above. My favorite is my 1959 Fender Stratocaster which is worth more than my car. It’s in fantastic condition and I found it for a bargain in an estate sale years back.  One problem with preserving guitars is that they are typically made out of wood, which expands and retracts over time in response to the fluctuations in humidity and moisture in the guitar’s environment. Warping can affect string tension which fundamentally alters the instrument’s ability to stay in pitch at various places on the guitar’s fretboard.  I went ahead and installed a separate heating and cooling system for my small home studio where I house my guitars and the rest of my music equipment. I had my contracted HVAC technician write up an estimate for using a small central air conditioner and furnace—like what you would find in a small apartment—to keep the climate controlled in my studio. In a sense, I have a quasi-zone control setup going on, but instead of using a portable AC or a ductless mini split, I have a secondary central HVAC for that particular zone of my house.  I have seen it before, but it’s definitely an unorthodox setup.

air quality