Thanks for the welcome, Joann.
One is planted in a clay pot. The roots at the top of the plant are sticking out above the medium. Both are planted in moss (the New Zealand type, I think). When I repot it, I think I'll opt out of moss 'cause it's trickier to gauge when the plant is dry.
Second plant (with the flower) is in a plastic pot. No roots poking on out on top. I noticed today that the bottom roots are near the drainage hole, so this guy might need a bigger pot. Also there's a nub at the base.
I would water lightly about every ten days or so when the medium felt close to dry. I alternate between Better-Gro's Bloom Booster and Orchid Plus food. Used a weak solution of Bloom Booster today. Going to slow down to once/twice a month fertilizing to avoid overdoing it.
A bit concerned that I gave them too much water today because I drenched them for the first time. The moss really retained moisture, so I put them outside during the day and brought them back in tonight because it's warmer inside. Had the fan going for damage control.
Thanks for solving the temperature mystery.