The temps here in so cal are nice so the home stays pretty constant all year. I do have a beverage cooler, but it doesn't get plugged in since the my temps in the home are not too hot and not too cool. I use 65 rh beads and have been using them for close to 15 year now without any problems. Never freeze since I've never had a probably with beetles. I think that was a big issue back in the late 90's bend I believe vendors have taken precautions again beetles since then.