Today Boilers condensation are among the major sources of heat used in homes, reaching now the returns high.
In condensing boilersthe fumes produced by combustion are cooled to bring them to the liquid state (in fact, you create the condensation from steam generated by combustion), thus recovering the heat used to preheat the return water.
With this technology, the output fumes temperature lowers to approximately 40 °C and is close to the flow temperature of the water (in the condensing boilers more efficient, the flue gas temperature may be even lower than the flow temperature of the water). The temperature of the flue gases, in boilers non-condensing) is typically:
-less than 140 – 160 °C in the boilers high-performance
-less than 200 – 250 °C in the boilers traditional
Condensing boilers are able to exploit the thermal energy of the fumes because they are made with materials resistant to the acidity of the condensate. In particular, use heat exchangers, ad-hoc, resistant to the acidity (pH 4-5) that goes to form condensing the steam of combustion.
Condensing boilers can operate both on Cng on LPG.
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Caldaia a condensazione junkers Caldaia a condensazione junkers GC9000i WM 20/100 S
Caldaia a condensazione junkers Caldaia a condensazione junkers GC9000i WM 20/100 SB
Caldaia a condensazione junkers Caldaia a condensazione junkers GC9000i WM 20/210 S