But after that, the condition of the central heating is getting weak. The architect continued turning on and off frequently and doesn't come with enough warm air from the central heating. I didn't know the reason why. And then yesterday or something, the center of heating lost the total temperature. Warmer, warm wear, and then our house getting like freezing. And I immediately called the company, which is repairing the central heating. And he came over today and checked the heating machine