It is said that many schools need money to pump hot water in the school hot water room, but it is absolutely unreasonable or even illegal not to supply hot water. There is nothing to blame for not supplying hot water for free. After all, the consumption of heat source is quite large! All schools prohibit the use of water heaters. It can be said that it is because of the electricity bill, but this is not the point. Most importantly, for safety reasons, the safety hazard of water heaters is particularly great, which will lead to fire!