Nice! Warm and cold rooms - why? I'd figure you would want scope and its housing at ambient all the time, maybe with a dew-heater on the business end
We call the warm room where one sits and the cold room where the telescopes are. If you look carefully you can see a 2 water shaped roof. That one I move to the left over the warm room and open where the telescopes are and that is what we call the cold room
![Grin ;D](https://forum.luminous-landscape.com/Smileys/default/grin.gif)
That Observatory is located in central Mexico, city of San Luis Potosi in the state of San Luis Potosi, where the climate os semi desert like and I have never needed the dew heaters. Also maybe due to the fact of the 4 walls around the scopes.