Search
Search
Private customerProfessional
EN
  • wolf
  • wolf
  • wolf

CHA Monoblock air-to-water heat pump 16/20, 20/24

Efficient, quiet and designed for large-scale applications up to 100 kW

With the CHA Monoblock series, replacing your heating system has never been easier. Ideal for renovating larger properties such as apartment buildings, it enables a direct switch from oil or gas heating to a future-proof monoblock heat pump – efficient, powerful, and using the environmentally friendly refrigerant R290 (propane).

CHA16/20
CHA20/24

Thanks to high flow temperatures, a robust monoblock design, and a comprehensive range of accessories, the CHA Monoblock is easy to install – ensuring maximum comfort and reliable, long-lasting operation, even in new buildings.

  • Easy modernization: Direct switch from oil or gas heating to a future-proof heat pump
  • Ideal for larger properties: Perfect for renovations in apartment buildings and existing structures
  • Top efficiency: High flow temperatures and powerful monoblock design
  • Fast & secure installation: Comprehensive accessory range for smooth assembly
  • Sustainable & future-proof: Operates with the environmentally friendly refrigerant R290 (propane)

 

What do you want to know?

Overview of benefits

Become part of the energy revolution and opt for the successful CHA Monoblock, which has proven itself thousands of times over.

Nine good reasons for choosing the
new CHA Monoblock heat pump

Performance specifications

CHA-Monoblock
Typ
CHA-16/20
CHA-20/24
A-7/W35 max. output
kW
16,7
19,6
A7/W35 rated output / COP to EN 14511
kW / -
7,3 / 5,6
8,7 / 5,6
A2/W35 rated output / COP to EN 14511
kW / -
9,9 / 4,6
12,3/ 4,4
A-7/W35 rated output / COP according to EN14511
kW / -
11,9 /3,2
15,1 / 3,1
A35/W18 cooling capacity range
kW
7,2 - 16,4
19,6
Max. flow temperature in pure heat pump operation
°C
70
70
Sound power level day max. / reduced night operation / ErP
dB(A)
65 / 56 / 52
66 / 58 / 53
Seasonal central heating efficiency 35°C (ETA_s / Prated / SCOP) at average climate conditions.
% / kW / -
215 / 14 / 5,46
205 / 18 / 5,2
Seasonal central heating efficiency 55°C (ETA_s / Prated // SCOP) at average climate conditions.
% / kW / -
154 / 15 / 3,92
152 / 18 / 3,88
Refrigerant type / GWP
- / -
R290 / 0,02
R290 / 0,02
Refrigerant charge / CO2 eq.
kg / kg
3,8 / 0,08
3,8 / 0,08
Operating limits for supply air heating & hot water / cooling
°C
-22 bis +40 / +10 bis +45
-22 bis +40 / +10 bis +45
Energy efficiency class, central heating, low temperature
A+++ ➔ D
A+++
A+++
Energy efficiency class, central heating, medium temperature
A+++ ➔ D
A+++
A+++
Dimensions of outdoor unit (W x H x D)
mm
1.700 x 1.300 x 756
1.700 x 1.300 x 756
Dimensions of indoor unit (W x H x D)
mm
440 x 790 x 340
440 x 790 x 340
Weight of outdoor/indoor unit
kg
230 / 27
230 / 27
Electrical connection for outdoor unit
V
400
400
Max. power electric immersion heater
kW
9
9

Performance specifications

CHA-Monoblock

  • CHA-16/20

  • CHA-20/24

    A-7/W35 max. output (kW)
    16,7
    19,6
    A7/W35 rated output / COP to EN 14511 (kW / -)
    7,3 / 5,6
    8,7 / 5,6
    A2/W35 rated output / COP to EN 14511 (kW / -)
    9,9 / 4,6
    12,3/ 4,4
    A-7/W35 rated output / COP according to EN14511 (kW / -)
    11,9 /3,2
    15,1 / 3,1
    A35/W18 cooling capacity range (kW)
    7,2 - 16,4
    19,6
    Max. flow temperature in pure heat pump operation (°C)
    70
    70
    Sound power level day max. / reduced night operation / ErP (dB(A))
    65 / 56 / 52
    66 / 58 / 53
    Seasonal central heating efficiency 35°C (ETA_s / Prated / SCOP) at average climate conditions. (% / kW / -)
    215 / 14 / 5,46
    205 / 18 / 5,2
    Seasonal central heating efficiency 55°C (ETA_s / Prated // SCOP) at average climate conditions. (% / kW / -)
    154 / 15 / 3,92
    152 / 18 / 3,88
    Refrigerant type / GWP (- / -)
    R290 / 0,02
    R290 / 0,02
    Refrigerant charge / CO2 eq. (kg / kg)
    3,8 / 0,08
    3,8 / 0,08
    Operating limits for supply air heating & hot water / cooling (°C)
    -22 bis +40 / +10 bis +45
    -22 bis +40 / +10 bis +45
    Energy efficiency class, central heating, low temperature (A+++ ➔ D)
    A+++
    A+++
    Energy efficiency class, central heating, medium temperature (A+++ ➔ D)
    A+++
    A+++
    Dimensions of outdoor unit (W x H x D) (mm)
    1.700 x 1.300 x 756
    1.700 x 1.300 x 756
    Dimensions of indoor unit (W x H x D) (mm)
    440 x 790 x 340
    440 x 790 x 340
    Weight of outdoor/indoor unit (kg)
    230 / 27
    230 / 27
    Electrical connection for outdoor unit (V)
    400
    400
    Max. power electric immersion heater (kW)
    9
    9
    Show moreShow less

    Systems and components

    For air-to-water CHA Monoblock

    wolf

    All CHA heat pumps now come standard with the free WOLF Link!

    Starting in 2025, every WOLF CHA heat pump will be equipped with the WOLF Link interface module as standard – at no additional cost! This makes the heat pumps internet-ready and allows easy connection to the Smartset app. Look forward to smart control, efficient energy optimization, and maximum comfort – all seamlessly integrated.

    WOLF accessory solutions

    Quick and simple installation

    In addition to our premium products, WOLF also offers the necessary accessories for optimum installation of our appliances. 

    Now with KEYMARK certification

    The Heat Pump KEYMARK is a voluntary, independent European certification mark (ISO type 5 certification) for all heat pumps, combi heat pumps and water heaters (as covered by the Ecodesign Directive, EU Regulation 813/2013 and 814/2013). It is based on independent, third-party testing and demonstrates compliance with product requirements in accordance with the Heat Pump KEYMARK scheme rules and with efficiency requirements stipulated by the Ecodesign Directive.

    WOLF Heat pump HPK Logo

    Downloads

    Hello!

    How can we help?

    Customer Service
    Tools
    Important Links
    Downloads
    Service App
    Supplier portal