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    Gas condensing boilers

    Viessmann Vitodens 050-W wall-hung combi gas condensing boiler, front view
    Viessmann Vitodens 050-W boiler in side perspective
    Viessmann Vitodens 050-W wall-hung combi gas condensing boiler
    Viessmann
    from €2.183,44
    Viessmann Vitodens 100-W wall-hung gas condensing boiler, front view
    Viessmann Vitodens 100-W boiler in side perspective
    Viessmann Vitodens 100-W wall-hung gas condensing boiler
    Viessmann
    from €2.831,95
    Vitodens 111-W wall-hung gas condensing boiler, three-quarter view
    Vitodens 111-W front view with the control display at the bottom
    Viessmann Vitodens 111-W gas condensing boiler with built-in 46 l cylinder
    Viessmann
    from €4.448,67
    Vitodens 200-W B2HH and B2KH wall-hung gas condensing boiler, three-quarter view
    Vitodens 200-W front view with the control display at the bottom
    Viessmann Vitodens 200-W wall-hung gas condensing boiler, combi or heat-only
    Viessmann
    from €3.128,40
    Viessmann Vitodens 200-W B2HA wall-hung gas condensing boiler, front view
    Two Viessmann Vitodens 200-W B2HA boilers in cascade with flue header and low loss header, front view
    Viessmann Vitodens 200-W B2HA wall-hung gas condensing boiler, 49 to 99 kW
    Viessmann
    from €4.759,32
    Gestión Avanzada de Circuitos: Módulos ADIO EM-P1 VIESSMANN para Instaladores - Q-Tech® 2026
    Gestión Avanzada de Circuitos: Módulos ADIO EM-MX VIESSMANN para Instaladores - Q-Tech® 2026
    VIESSMANN ADIO Expansion Electronic Module for Circuit and Function Management
    Viessmann
    from €236,00
    Viessmann ZK02940 extension kit with actuator to mount on the mixing valve
    Viessmann ZK02941 extension kit in a wall-mounted housing, for a separate actuator
    Viessmann extension kit for a mixing valve circuit (KM-BUS, Vitotronic 200)
    Viessmann
    from €445,66
    Viessmann SM1 Z014470 solar control module in a wall-mounted housing, perspective view
    Viessmann SM1 solar control module (KM-BUS) for Vitotronic
    Viessmann
    €586,02
    Viessmann Divicon for a direct circuit, pump group with black insulation and thermometers, front view
    Top detail of the Viessmann Divicon: flow and return connections with thermometers
    Viessmann Divicon pump group for direct heating and cooling circuit
    Viessmann
    from €876,59
    Viessmann Divicon with mixing valve and actuator, pump group with black insulation, front view
    Inside the Viessmann Divicon with mixing valve: pump, 3-way mixing valve and actuator
    Viessmann Divicon pump group with mixing valve (PlusBus or KM-Bus)
    Viessmann
    from €1.612,80
    Viessmann manifold for 2 Divicon groups (7986761) with insulation, perspective view
    Viessmann manifold for 3 Divicon groups (7986762) with insulation, perspective view
    Viessmann distribution manifold for 2 or 3 Divicon pump groups
    Viessmann
    from €351,43
    Viessmann 7460649 low loss header up to 4.5 m³/h with insulation and manifold connectors
    Viessmann 7460648 low loss header up to 7.5 m³/h with insulation and manifold connectors
    Viessmann low loss header for Divicon manifold, up to 4.5 or 7.5 m³/h
    Viessmann
    from €314,12
    Viessmann 7465894 wall bracket for a single Divicon pump group without manifold
    Viessmann wall bracket for a single Divicon pump group without manifold
    Viessmann
    €49,09
    Viessmann 7465439 wall bracket: two steel brackets to hang the Divicon manifold
    Viessmann wall bracket for the Divicon pump group manifold
    Viessmann
    €49,09
    Vitoconnect OPTO2 wall-mounted Wi-Fi module, side view
    Vitoconnect OPTO2 front view with its three status lights
    Viessmann Vitoconnect OPTO2 Wi-Fi module for ViCare and ViGuide
    Viessmann
    €282,80
    Viessmann Vitotrol 100 UTDB room thermostat with digital display, front view
    Viessmann Vitotrol 100 UTDB thermostat, side perspective view
    Viessmann Vitotrol 100 UTDB: digital room thermostat with weekly programme
    Viessmann
    €150,19
    Viessmann Vitotrol 200-A remote control with display and buttons, front view
    Viessmann Vitotrol 200-A: wired remote control for 1 circuit (KM-BUS)
    Viessmann
    €200,26
    Viessmann Vitotrol 200-RF wireless remote control with display and buttons, front view
    Viessmann Vitotrol 200-RF: wireless remote control for 1 heating circuit
    Viessmann
    €240,50
    Viessmann Z011413 radio base station for Vitotrol RF controls, front view
    Viessmann radio base station for Vitotrol RF remote controls (KM-BUS)
    Viessmann
    €222,83

    Viessmann and Domusa gas condensing boilers

    A gas condensing boiler provides heating and hot water by recovering the heat in the flue gas vapour. Q-Tech brings together here the gas boilers we sell today, grouped by brand, each with its original components.

    Choose your collection

    CollectionWhat it includes
    Viessmann H2 Ready gas boilers and componentsVitodens 050-W, 100-W, 111-W and 200-W wall-hung boilers and the ADIO extension module
    Domusa gas boilers and componentsAvanttia NG floor-standing boiler with stainless tank and its original components

    Installation accessories are in Gas boiler accessories, and oil boilers in Oil condensing boilers.

    You can receive your boiler inside a pre-assembled plant room: Q-Tech assembles, configures and tests it in our workshop. See the process in Pre-Montaje Avanzado; to choose with the data of your case, message us on WhatsApp.

    FP54·261108