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Overview of benefits

High level of standard equipment (e.g. integrated flue non-return valve)

Living room-friendly: stylish design for unobtrusive, space-saving installation

Extremly silent

Easy WOLF control system & smartphone integration compatible with BM-2

Seasonal efficiency up to 94 %

Flue gas system "Quick Flue": tested and accredited system

Very quick and easy to install (no pipe clamps needed)

High-grade polyphenylene sulfide (PPS)

Specifications

Type
FGB-24
FGB-K-24
FGB-28
FGB-K-28
FGB-35
FGB-K-35
Dimensions W x D x H (without flue gas collar)
mm
-
-
408 x 310 x 650
408 x 310 x 650
-
-
Rated heating output 80/60°C
kW
19.4/23.3*
19.4/23.3*
24.4/27.3*
24.4/27.3*
31.1/30.0*
31.1/30.0*
Rated heating output 50/30°C
kW
20.7
20.7
27.3
27.3
34.9
34.9
Lowest heating output (modulating) 80/60°C
kW
4.8
4.8
4.8
4.8
6.7
6.7
Lowest heating output (modulating) 50/30°C
kW
5.3
5.3
5.3
5.3
7.5
7.5
Total weight
kg
27
27
27
27
28
28
Expansion vessel
l
8
8
8
8
8
8
Specific water throughput
l/min
-
10.6
-
13.4
-
16.3
Power supply/fuse
230V/50Hz/3.15A
230V/50Hz/3.15A
230V/50Hz/3.15A
230V/50Hz/3.15A
230V/50Hz/3.15A
230V/50Hz/3.15A
230V/50Hz/3.15A

Specifications

  • FGB-24

  • FGB-K-24

  • FGB-28

  • FGB-K-28

  • FGB-35

  • FGB-K-35

    Dimensions W x D x H (without flue gas collar) (mm)
    -
    -
    408 x 310 x 650
    408 x 310 x 650
    -
    -
    Rated heating output 80/60°C (kW)
    19.4/23.3*
    19.4/23.3*
    24.4/27.3*
    24.4/27.3*
    31.1/30.0*
    31.1/30.0*
    Rated heating output 50/30°C (kW)
    20.7
    20.7
    27.3
    27.3
    34.9
    34.9
    Lowest heating output (modulating) 80/60°C (kW)
    4.8
    4.8
    4.8
    4.8
    6.7
    6.7
    Lowest heating output (modulating) 50/30°C (kW)
    5.3
    5.3
    5.3
    5.3
    7.5
    7.5
    Total weight (kg)
    27
    27
    27
    27
    28
    28
    Expansion vessel (l)
    8
    8
    8
    8
    8
    8
    Specific water throughput (l/min)
    -
    10.6
    -
    13.4
    -
    16.3
    Power supply/fuse (230V/50Hz/3.15A)
    230V/50Hz/3.15A
    230V/50Hz/3.15A
    230V/50Hz/3.15A
    230V/50Hz/3.15A
    230V/50Hz/3.15A
    230V/50Hz/3.15A