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The new "NOx class 5" series of high performance boilers is harmonized with the "ERP2015" and the 813/2013 and 814/2015 Directives which require a 1/9 inverter circulator and 1 / 9th burner operati...
The new "NOx class 5" series of high performance boilers is harmonized with the "ERP2015" and the 813/2013 and 814/2015 Directives which require a 1/9 inverter circulator and 1 / 9th burner operati...