Water heaters located in unconditioned spaces (i.e., attics, basements, etc.) may require the water piping and drain piping to be insulated to protect against freezing.
Water heaters located in unconditioned spaces (i.e., attics, basements, etc.) may require the water piping and drain piping to be insulated to protect against freezing.
如果热水器安装在不具备条件的地方（如：阁楼，地下室，等等），可能要求水管和排水管加装保温层以防止被冻结。