In winter, the room temperature for heating is kept at 18°C-22°C, which is the most comfortable and healthiest. With the advent of winter, our friends feel the "warm current" brought by central heating. The temperature difference between indoor and outdoor is very different, and it is difficult for the human body to adapt, and it is easy to cause colds and colds.
Low-nitrogen condensing boilers refer to boilers that use full premixed combustion technology. Full premixed combustion refers to the combustion method in which natural gas is fully mixed with air in a certain proportion before combustion, and no longer needs to supply air during the combustion process.