According to the European Union's efficiency standards for wall-hung boilers, the efficiency of wall-hung boilers can be rated as one to four stars. At present, the domestic wall-hung boilers have reached the thermal efficiency of Samsung in Europe, basically above 93%, and the thermal efficiency of domestic wall-hung boilers with secondary energy consumption is higher than 88%. What we mark on the energy consumption label of the shell is the minimum standard of secondary energy consumption in China.
1: energy efficiency: SISTEP imported from Italy is among the best in all indexes: the thermal efficiency of traditional plate changer is 92.9%, and that of condenser is 108.7%. Especially, the thermal efficiency at low power is optimized, and the indexes of VIRON, ariston, Bosch, viessmann and SISTEP are better than many models of the above brands.
2. Quality: Saidu step adopts the latest accessories from world-renowned accessories manufacturers, and has European patents on electrode electronic ignition and hydraulic components, with a design life of over 15 years. Italian Fermi graphite bearing fan, Italian Sitter fresh air valve, Danish Glenford high-flow high-lift water pump, Italian huber wind pressure switch, Italian saf main heat exchanger (5 copper tubes), Italian Norgas circuit board and other accessories are all well-known Italian brands.
3. After-sale: I have confidence in my products, and I use a lot of copper materials, which makes the weight of the wall-hung boiler of Saidu cascade much heavier than other imported brands (40kg-45kg). Therefore, Sidu step provides consumers with a 6-year warranty that is superior to other brands.
The shell of wall-hung boiler was used for the first time in the domestic market, but it was not produced because of low thermal efficiency, nitrogen pollution and unstable domestic hot water. At present, the implementation standard of Oudameng is stricter, and it has been replaced by domestic hot water, which has a more stable service life and a longer service life of plate heating furnace. Cedu has no shell in the fireplace.