That tent looks serious!!
Btw I always bring a few of the smaller blooming Orchids into the living room. I like the way it looks.
Regarding the Dendrochilum tenellum - I would consider it an easy grower as long as it gets plenty of water. ( mine is in a tree fern ring) It doesn't want a super sunny spot, so that helps too. I really set back my Dendrochilum magnum a couple of Summers ago by keeping it too sunny by mistake -outside in the cage. It had lost all leaves that year. But it bounced back and I expect blooms again next Fall.
