Photo of my biggest terrarium for attention. Things are less colourful currently; this is from about a year ago. I always enjoy my terrarium the most in February with the green contrasting with the Canadian winter. It’s especially white and snowy this week.
No heating at all for the terrarium, a few watts for two fans (silent low power fans like those inside computers) a few watts for the light. Probably a very low total electricity consumption and in my case with the room needing heating 50-60 % of the year, from cheap hydroelectric electricity, very little is lost. The room temperature is 21 to 25 depending on the Sunlight and plants have stable condition and high humidity.
Thanks a lot for the information! Your room seems to be awfully hot though :D