WITH PREMIXED GAS (Heating modulation)

The AXIA E 357 is hydronic heating system with an all copper heat exchanger, a premixed gas/air burner (for high efficiency and low emissions of pollutants) that can be installed in sequence with other AXIA units in order to build one larger heating generator.

The AXIA E 357 boiler has a sealed combustion chamber; this means that the combustion air inlet and flue outlet circuit is completely isolated from the surrounding environment.

The main features, which make up this type of boiler different from other “standard” boilers, are the following:

-     no mixing valve

-     connection to the 10 liters expansion vessel in accordance with the ISPESL directive

-     safety relief valve certified with ISPESL, ASME, and set at 2,5 bar (30 psi).