Hi this is probably a question for someone in the uk. I have a 6 and 7 yr old Russians. They have a heated shed and can come and go as they want. They haven’t been in this set up for a full summer. My question is now that the weather is warming up, today it was 15 degrees with sun. They don’t want to stay outside for long before going in again , I switched off the heat bulbs off about 2 0’clock and the older more active female as been out a lot more. Then she went in and went to sleep. What does everyone else do, just a warm up in a morning and lights off till the next day or switch back on a few more hours early evening ? Thanks in advance.