GEG Safety: Operation with up to 100% bio-natural gas possible as standard
Gas condensing boiler as a complete unit
Compact dimensions and low weight
Operational reliability through Vaillant Comfort Protection Fully pre-mixing modulating stainless steel surface burner Gas/air compound control with electronically controlled fan DIA system with illuminated plain text display Connection for external accessories (e.g. cylinder charging pump, circulation pump, heating circuit pump) integrated
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