Phalaenopsis location, is it ok near the heater?

[João]

Hi everyone, I'm new here.

A couple of months ago someone gave me a tiny Phal and now I'm absolutely fascinated with these plants, now I have 7 of these on my room's window. I've chosen that spot because there's plenty of indirect sunlight.

I have one question: under the window there's the room's radiator, is this a problem? I make a slight decrease of the temperature over night, but I read somewhere that Phals don't like temperature fluctuations one should avoid place them near heaters. Shall i stop the temperature variations? Is it the heat coming from under somehow harmful to the Orchids?

Could you let me know your advice?

Thanks a lot, cheers

João