Radiator "air block" there is a trick to turn open the needle exhaust valve exhaust

As the radiator long-term use, heating a few days ago, there may be "gas blocked" situation. The heating company suggested that the user unscrew the pin-shaped exhaust valve at the end of the radiator, but do not unscrew it. After the air is shut off for a while, the heating can be repeated once a day for 3-5 days. In addition, during the central heating, residents around the radiator to maintain good cooling space, do not randomly stacked debris; decoration radiator is not sealed, so as not to affect the heating quality; heating pipe on the valve after debugging, do not Feel free to close and open; heating room windows and doors should be kept well sealed, do not knock down the walls leading to the balcony; interior decoration, heating facilities to be installed specifications.