The heater is not that warm you definitely need to wear jacket in the room. Especially showering is very torture. There is only one old heater inside a room and shower is another room. It will be super cold after showering. Think it’s might because we are from north east Asia and 0 degree Celsius in room is too cold for us. Reach to owner and owner said no one feed back like this and heater is used for 3 years working great. So might be a good choice in summer!