35 kW 4-star floor-standing sealed chamber condensing boiler with 150 liter boiler, 3 mixing pumps for three-zone heating, 1 pump for domestic water, multigas operation (methane or LPG), chronothermostat, perfect, commissioned in 2018 until 2022, the year in which I replaced it with a hybrid system. I also deliver two new digital chronothermostats.