Please be careful about freezing water heaters due to cold weather.
Thank you for using our products.
Well, in winter, it is expected that the water will freeze due to the cold weather.
Please refer to the following page for information on how to prevent water heaters from freezing due to cold weather and how to deal with freezing.
・About freezing prevention
https://takara-bcc.co.jp/user_data/touketuhason.php
・Response in case of freezing