I put 18 degrees, but we try not to use heating at all. We haven't used it since March, and we still have windows open most nights, even through the winter. Now that Lexie is 2 we aren't likely to use it again unless it gets extremely cold, but it doesn't really get cold enough in this country.

To be honest this country is too hot for me at the best of times, but Claire likes it a bit warmer than I do, so what can you do.