Ventilating help

So, I have a separate room for grow, and it has door to balcony with glass windows.
Sometimes temps go to -c and the glasses start to freeze from humidity. I can't keep them fully open at winter.
I would like to not have such thing happen, but can't find a great solution.
Does it change anything if I just keep door open and let the air change passively? Maybe the air would be a bit cooler when its going out, or the whole room would heat up anyway since I am circulating the air in it and not pushing hot air straight out. Room is connected to the rest of house, maybe I could vent at least some air to it. Don't want to make a hole to door but it has a small, maybe 2cm gap under.

Any ideas are welcome
EDIT: only 1 or 2x 600w heat

Pictures speak 1000 words

Well I can draw you a blueprint if you want, but thats about it
So red is hot air pushed out, blue is cold air brought in, not straight into tent. And the balcony with glass, its not fully shut.

dizzyground said:

Well I can draw you a blueprint if you want, but thats about it
So red is hot air pushed out, blue is cold air brought in, not straight into tent. And the balcony with glass, its not fully shut.
View attachment 5036218View attachment 5036218

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Your shits going to freeze if it gets below zero where you are.

moisture will build up all over your door and freeze.

This is a bad idea imo.

True, that might be. It is also possible to make holes to the door going to balcony, since it is already fucked.

dizzyground said:

True, that might be. It is also possible to make holes to the door going to balcony, since it is already fucked.

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You should be able to just exhaust into the room itself. it’s not a large operation or anything dude.