Korean plumbing carpet? Is this thing reliable? Do you know any friends?

Now go to the mall to buy floor heating, and most salesmen will recommend water heating blankets to you. So is the warm blanket really as good as it says? What is the safety performance in use? Five safety common sense when using warm blanket: household appliances, mahogany furniture, kitchen and bathroom appliances. First, it must be square under sheets and thin mattresses, and never.