Professional R & D, manufacturing, absolutely determined to pursue professional is the essence of the spirit of Haydn boiler. China has become the forefront of brand sales, China household heating units Association, one boiler drafting of national standards issued by the State Department of Housing and the Healthy certification, is the wall-mounted domestic boiler industry professional R & D level and professional level of service one of the highest. Respond to national energy call, the latest development of inverter technology, which enables the boiler thermal efficiency by 4.5%, saving more gas province. Ultra-quiet mode, standard inverter fan automatically adjust the size according to amount of wind power, gas burning match, combined gas proportional valve, more energy, a key energy-saving mode, easy operation. Special climate compensation, energy is not just an empty phrase.