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%.
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.

Benefits of WOLF gas hybrid systems

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

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

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+++ → D
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+++ → D
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+++ → D
A++/A+++
A++/A+++
Energy efficiency class, central heating, average temperature
A+++ → D
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+++ → D
A++/A+++
A++/A+++
Energy efficiency class, central heating, average temperature
A+++ → D
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+++ → D
A+++
A+++
A+++
A+++
A+++
A+++
A+++
Energy efficiency class, central heating, medium temperature
A+++ → D
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+++ → D
A+++
A+++
A+++
A+++
A+++
A+++
A+++
Energy efficiency class, central heating, medium temperature
A+++ → D
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

Gas hybrid heating

The best of two worlds

Flexible combination options

Gas and solar combinations

Gas and heat pump combinations

Benefits of WOLF gas hybrid systems

Coordinated and perfectly controlled

The perfect team

Intelligent control

Outstandingly energy efficient

Reduces gas bills

Improved reliability

Environmentally friendly technology

Climate-conscious heating

Future-proof

The components of a gas hybrid heating system

CGB-2 family

Basic information

TGB-2

Basic information

Flat-plate collectors

Basic information

Tube collectors

Basic information

Monoblock variant

Basic information

Split variant

Basic information

Technical details

CGB-2

CGB-2

CGB-2-14

CGB-2-20

CGB-2-24

TGB-2

TGB-2

TGB-2-20

TGB-2-30

TGB-2-40

Monoblock variant

Monoblock variant

CHA-07

CHA-10

Split variant

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

Flat-plate collectors

Flat-plate collectors

F3-1

F3-1Q

CFK-1

Tube collectors

Tube collectors

CRK-12

You may be interested in

Advice: Understanding hybrid systems

Project: Hybrid solution

Guide: Net vs. gross calorific value

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