I've tried putting my hoya's outside, they do ok, until summer. But with temps of 115-119 F, they start to get really ticked off. So have to bring them inside. One I have is so huge, I can't even take it outside anymore, It's all wrapped around t clothes line that goes from one side of my big picture window to the other, and back across the other direction again. I'll try and take a picture of it, but being by the window, it's hard to see with the bright light shining in. The best I could do is a side shot, here it is.
I can't remember the name of this one off the top of my head, but as I recall, it is suppose to have red clusters of flowers. That's another variegated hoya in that pot at the other end. It does pretty well with the superthrive too.
Please don't look at my messy office!! =)