Daisyl, we get some snow in the winter (although less and less every year it seems... 😬) And we get some wind storms every now and again. It's never too brutal though and my greenhouse is protected by my shed and fence. It gets down into the low teens as far as temperatures (F) go frequently. I haven't grown vanilla orchids either so I'm just throwing myself into it. 😅 Fortunately, my greenhouse is going to be nearly dedicated to these things.
Subarctic: Thanks for your reply! And that's incredible! Are the quartz radiants more efficient than electric heat typically?