At the edit for the light shield, all I could think of is how he needs a light shield on that window and maybe flock his room to knock back all of that stray light from washing out his image.
From the accent, I'd say that you might have more than your share of nights where the temps dip below dew point. Adding a heater to the tube will help avoid the mirrors fogging up. It's much warmer in my part of the world, so dew points are rarely an issue. However, that extra warmth tends to make the seeing much less clear. I'm going to risk it during next weekend's dark skies. I'm spending money on it, so that pretty much guarantees cloudy conditions.
No I don't even use a dew heater because it's warm here. I am imaging from Turkey where skies are blue and it does tend to be windy as I'm near the sea.
From the accent, I'd say that you might have more than your share of nights where the temps dip below dew point. Adding a heater to the tube will help avoid the mirrors fogging up. It's much warmer in my part of the world, so dew points are rarely an issue. However, that extra warmth tends to make the seeing much less clear. I'm going to risk it during next weekend's dark skies. I'm spending money on it, so that pretty much guarantees cloudy conditions.