62c72491-6a5c-4827-aef0-edaf679db058 1 boiler to produce either 80, 100 or 120 kW of heating, according to the reference usage scenario defined in the EN 15502 -1 standard and during the 22 -year reference lifetime of the product. Vaillant Group UK Ltd. 2026-03-26T11:52:50Z 00.00.003