wolf

Gas hybrid heating

The best of two worlds

A gas hybrid system combines the best of two worlds: durable, proven gas heating technology is very reliable, while the use of renewable energy sources cuts heating bills and contributes to climate protection.

Flexible combination options

  • Gas and solar combinations

    The combination of a gas condensing boiler and solar thermal technology is the most popular form of gas hybrid heating. Using environmentally friendly solar energy can lower your gas consumption by 20 to 50%.

    wolf

  • Gas and heat pump combinations

    With this form of gas hybrid heating, you heat your home using climate-friendly environmental heat for most of the year. The gas appliance only provides additional heating when it gets very cold outside.

    Scheme of hybrid system

Benefits of WOLF gas hybrid systems

smarthome

Coordinated and perfectly controlled

The perfect team

WOLF supplies gas hybrid heating systems as coordinated complete systems. Condensing boilers, renewable energies and thermal storage cylinders form the perfect team.

Intelligent control

All components work together perfectly thanks to the intelligent control system. This also makes it easier for users to configure the systems using the shared programming unit or with the WOLF Smartset app. Read more

Save costs

Outstandingly energy efficient

Reduces gas bills

Hybrid systems exploit the respective strengths of both technologies and are particularly efficient. This slashes your gas bills.

Improved reliability

The combination of two heat generators extends the service life of the gas heating system. It also improves the operational reliability of the overall system – if one part malfunctions, the other can still carry on heating. Read more

solar thermal

Environmentally friendly technology

Climate-conscious heating

These systems use a high proportion of renewable energy so you can heat your home in a climate-conscious and environmentally friendly way.

Future-proof

Using renewable energies reduces your dependence on imported fuels.

The components of a gas hybrid heating system

WOLF gas condensing boilers modulate their output continuously. This means that they can always supply as much heating warmth as the hybrid system currently requires from the gas component.

  • CGB-2 family

    Long service life and particularly low consumption: this model is a top WOLF appliance.

    Basic information

    Seasonal space heating energy efficiency ηS 93

    Dimensions (WxHxD) 440mm x 790mm x 378mm

  • TGB-2

    This appliance is practically silent and suitable for any installation situation – perfect for older buildings.

    Basic information

    Energy efficiency class A

    Dimensions (WxHxD) 566mm x 1290mm x 605mm

    Interior sound power level 42 dB(A)

  • Flat-plate collectors

    The TopSon F3-1 is available in vertical or horizontal versions. The robust pan construction means it will capture the sun's rays on your roof very reliably for many years to come.

    Basic information

    Gross surface area 2.3 m2

  • Tube collectors

    The CRK-12 offers the highest solar yields, even if the orientation or solar exposure is not ideal.

    Basic information

    Gross surface area 2.29 m2

  • Monoblock variant

    The CHA Monoblock is a top model that heats your home to perfection thanks to its extremely quiet and superbly efficient operation.

    Basic information

    Energy efficiency class, central heating, low temperature A+++

    Energy efficiency class, central heating, medium temperature A++

    Outdoor unit dimensions (WxHxD) 1286mm x 79mm x 562mm

    Indoor unit dimensions (WxHxD) 440mm x 790mm x 340mm

  • Split variant

    The indoor and outdoor modules of the BWL-1S(B) are very space-saving so you can set them up flexibly inside and outside your home. Split units are also particularly good value for money.

    Basic information

    Energy efficiency class, central heating, low temperature A++

    Indoor unit dimensions (WxHxD) 440mm x 790mm x 340mm

Technical details

  • CGB-2

    CGB-2-14
    CGB-2-20
    CGB-2-24
    Min./max. rated heating output at 50/30°C
    kW
    2.1 - 15.2
    4.4 - 20.4
    5.6 - 25.8
    Seasonal space heating energy efficiency ηS
    93
    93
    93
    Width
    mm
    440
    440
    440
    Height
    mm
    790
    790
    790
    Depth
    mm
    378
    378
    378

    CGB-2

    • CGB-2-14

    • CGB-2-20

    • CGB-2-24

      Min./max. rated heating output at 50/30°C
      kW
      2.1 - 15.2
      4.4 - 20.4
      5.6 - 25.8
      Seasonal space heating energy efficiency ηS
      93
      93
      93
      Width
      mm
      440
      440
      440
      Height
      mm
      790
      790
      790
      Depth
      mm
      378
      378
      378

    • TGB-2

      TGB-2-20
      TGB-2-30
      TGB-2-40
      Energy efficiency class
      A
      A
      A
      Heating output range at 80/60°C
      kW
      2.9 - 17.0
      5.0 - 26.9
      6.1 - 35.7
      Heating output range at 50/30°C
      kW
      3.3 - 19.6
      5.8 - 30.2
      7.4 - 40.5
      Height
      mm
      1290
      1290
      1290
      Width
      mm
      566
      566
      566
      Depth
      mm
      605
      605
      605
      Weight
      kg
      89
      89
      89

      TGB-2

      • TGB-2-20

      • TGB-2-30

      • TGB-2-40

        Energy efficiency class
        A
        A
        A
        Heating output range at 80/60°C
        kW
        2.9 - 17.0
        5.0 - 26.9
        6.1 - 35.7
        Heating output range at 50/30°C
        kW
        3.3 - 19.6
        5.8 - 30.2
        7.4 - 40.5
        Height
        mm
        1290
        1290
        1290
        Width
        mm
        566
        566
        566
        Depth
        mm
        605
        605
        605
        Weight
        kg
        89
        89
        89

      • Monoblock variant

        Type
        CHA-07
        CHA-10
        Output range at A-7/W35
        kW
        1.6-6.8
        2.2-9.8
        A7/W35 rated output / COP according to EN14511
        kW / -
        4.5 / 5.47
        4.1 / 5.72
        A2/W35 rated output / COP to EN 14511
        kW / -
        5.15 / 4.54
        5.75 / 4.65
        A-7/W35 max. output / COP according to EN14511
        kW / -
        5.88 / 2.73
        7.97 / 2.88
        Max. flow
        °C
        70
        70
        Max. nighttime sound pressure (installed outdoors at a distance of 3 m)
        dB(A)
        32
        34
        Max. daytime / max. nighttime sound power level
        dB(A)
        58 / 49
        60 / 51
        Sound power level ErP
        dB(A)
        52
        53
        Refrigerant type / charge weight / GWP
        - / kg / -
        R290 / 3.1 / 3
        R290 / 3.4 / 3
        Energy efficiency class, central heating, low temperature
        -
        A++/A+++
        A++/A+++
        Energy efficiency class, central heating, average temperature
        -
        A++
        A++
        Dimensions of outdoor unit
        mm
        1286 x 586 x 902
        1286 x 586 x 902
        Dimensions of indoor unit
        mm
        440 x 340 x 790
        440 x 340 x 790
        Weight outdoor / indoor unit
        kg
        152 / 27
        162 / 27
        KEYMARK certification (ISO type 5)
        Yes
        Yes

        Monoblock variant

        • CHA-07

        • CHA-10

          Output range at A-7/W35
          kW
          1.6-6.8
          2.2-9.8
          A7/W35 rated output / COP according to EN14511
          kW / -
          4.5 / 5.47
          4.1 / 5.72
          A2/W35 rated output / COP to EN 14511
          kW / -
          5.15 / 4.54
          5.75 / 4.65
          A-7/W35 max. output / COP according to EN14511
          kW / -
          5.88 / 2.73
          7.97 / 2.88
          Max. flow
          °C
          70
          70
          Max. nighttime sound pressure (installed outdoors at a distance of 3 m)
          dB(A)
          32
          34
          Max. daytime / max. nighttime sound power level
          dB(A)
          58 / 49
          60 / 51
          Sound power level ErP
          dB(A)
          52
          53
          Refrigerant type / charge weight / GWP
          - / kg / -
          R290 / 3.1 / 3
          R290 / 3.4 / 3
          Energy efficiency class, central heating, low temperature
          -
          A++/A+++
          A++/A+++
          Energy efficiency class, central heating, average temperature
          -
          A++
          A++
          Dimensions of outdoor unit
          mm
          1286 x 586 x 902
          1286 x 586 x 902
          Dimensions of indoor unit
          mm
          440 x 340 x 790
          440 x 340 x 790
          Weight outdoor / indoor unit
          kg
          152 / 27
          162 / 27
          KEYMARK certification (ISO type 5)
          Yes
          Yes

        • Split variant

          BWL-1S(B) 05/230V
          BWL-1S(B) 07/230V
          BWL-1S(B) 10/230V
          BWL-1S(B) 14/230V
          BWL-1S(B) 10/400V
          BWL-1S(B) 14/400V
          BWL-1S(B) 16/400V
          Energy efficiency class, central heating, low temperature
          A+++
          A+++
          A+++
          A+++
          A+++
          A+++
          A+++
          Energy efficiency class, central heating, medium temperature
          A+
          A++
          A+
          A+
          A++
          A++
          A++
          Dimensions
          Width x height x depth of outdoor unit (incl. legs and front doors)
          mm
          964 x 862 x 363
          964 x 862 x 363
          964 x 1261 x 363
          964 x 1261 x 363
          964 x 1261 x 363
          964 x 1261 x 363
          964 x 1261 x 363
          Width x height x depth of indoor unit (including legs and front doors)
          mm
          440 x 790 x 340
          440 x 790 x 340
          440 x 790 x 340
          440 x 790 x 340
          440 x 790 x 340
          440 x 790 x 340
          440 x 790 x 340
          Weight of outdoor/indoor unit
          kg
          66 / 31
          66 / 31
          110 / 30
          110 / 32
          110 / 35
          110 / 37
          110 / 37

          Split variant

          • BWL-1S(B) 05/230V

          • BWL-1S(B) 07/230V

          • BWL-1S(B) 10/230V

          • BWL-1S(B) 14/230V

          • BWL-1S(B) 10/400V

          • BWL-1S(B) 14/400V

          • BWL-1S(B) 16/400V

            Energy efficiency class, central heating, low temperature
            A+++
            A+++
            A+++
            A+++
            A+++
            A+++
            A+++
            Energy efficiency class, central heating, medium temperature
            A+
            A++
            A+
            A+
            A++
            A++
            A++
            Dimensions
            Width x height x depth of outdoor unit (incl. legs and front doors)
            mm
            964 x 862 x 363
            964 x 862 x 363
            964 x 1261 x 363
            964 x 1261 x 363
            964 x 1261 x 363
            964 x 1261 x 363
            964 x 1261 x 363
            Width x height x depth of indoor unit (including legs and front doors)
            mm
            440 x 790 x 340
            440 x 790 x 340
            440 x 790 x 340
            440 x 790 x 340
            440 x 790 x 340
            440 x 790 x 340
            440 x 790 x 340
            Weight of outdoor/indoor unit
            kg
            66 / 31
            66 / 31
            110 / 30
            110 / 32
            110 / 35
            110 / 37
            110 / 37

          • Flat-plate collectors

            F3-1
            F3-1Q
            CFK-1
            Width
            mm
            1099
            2099
            1099
            Height
            mm
            2099
            1099
            2099
            Depth
            mm
            110
            110
            110
            Gross surface area
            m2
            2.3
            2.3
            2.3

            Flat-plate collectors

            • F3-1

            • F3-1Q

            • CFK-1

              Width
              mm
              1099
              2099
              1099
              Height
              mm
              2099
              1099
              2099
              Depth
              mm
              110
              110
              110
              Gross surface area
              m2
              2.3
              2.3
              2.3

            • Tube collectors

              CRK-12
              Effective surface area of the collector
              m2
              2
              Width
              mm
              1390
              Height
              mm
              1640
              Depth
              mm
              100
              Gross surface area
              m2
              2.29

              Tube collectors

              • CRK-12

                Effective surface area of the collector
                m2
                2
                Width
                mm
                1390
                Height
                mm
                1640
                Depth
                mm
                100
                Gross surface area
                m2
                2.29

              You may be interested in

              wolf

              Advice: Understanding hybrid systems

              Find out more
              Project: Swap from oil to gas hybrid

              Project: Hybrid solution

              Find out more
              Calorific value

              Guide: Net vs. gross calorific value

              Find out more

              Hello!

              How can we help you?

              Service contact
              Customer hotline
              Finding your expert
              Important Links
              Career
              Sustainability