The local heating "idea" is now low valued because moving between cold and hot area isn't good for health (called "heat shock"). It is recommended to make hous

The local heating "idea" is now low valued because moving between cold and hot area isn't good for health (called "heat shock"). It is recommended to make house insulated well and heat all rooms, for new houses. https://japantoday.com/category/national/agency-issues-warning-about-heat-shock-danger-from-hot-baths https://japantoday.com/category/national/agency-issues-warni...