You never stop being surprised

Did you know that the heat in Chinese people's houses is largely supplied by the government? That's a surprise to me. But an even larger surprise is that the heat is only available to those living in North China, and that only for a limited time of year, usually November 15 to March 15. If you live in the South, where temperatures can drop to 0 and average in the low 40s, the state does not supply heat. Long johns are big sellers!