Let your heat pump talk to the sun.

With a SOLARWATT system, your heat pump and PV system work together to heat or cool your home as efficiently as possible.
With a SOLARWATT system, your heat pump and PV system work together to heat or cool your home as efficiently as possible.

A rich integration between your SOLARWATT system & STIEBEL ELTRON heat pump.

A rich integration between your SOLARWATT system & STIEBEL ELTRON heat pump.

  • Your heat pump is run as efficiently as possible to maximise available solar power
  • Utilises advanced weather forecasting and heat loss analysis to generate predictive schedules
  • Unique building characteristics and battery system taken into account
  • Easy to install - the SOLARWATT Manager and heat pump talk over your local area network, so there's no additional wiring required

The latest generation of supported heat pumps.

ESS AE

Air-source heat pumps.

HPA-O Trend & Plus from STIEBEL ELTRON
  • Air source heat pump installed outdoors for modernisation and new build
  • Compact design for small wall clearances and flexible positioning
  • Low costs and high living comfort thanks to efficient R290 refrigerant circuit
  • Efficient cooling possible thanks to circuit reversal
  • Multi stage safety concept for the R290 refrigerant circuit
  • Many solutions for different applications possible with flexible installation options and customised accessories
ESS AE

Ground-source heat pumps.

WPE-I Premium from STIEBEL ELTRON
  • Ground source heat pump installed indoors with inverter technology for heating and DHW heating
  • Natural, futureproof and eco-friendly refrigerant R290
  • Carefree operation with VDE-tested safety concept
  • Minimal space requirement in the installation room thanks to integral safety valves, circulation pumps for brine and heating, diverter valve
  • Active or passive cooling possible with additional components
  • Suitable for modernisation projects thanks to 70 °C flow temperature
ESS AE

Integrated MVHR systems.

LWZ Premium from STIEBEL ELTRON
  • Compact integral unit for heating, cooling, ventilation and air purification
  • Customised adjustment to the DHW demand using an external DHW cylinder
  • Sustainable and futureproof thanks to the natural refrigerant R290
  • Small installation area thanks to very compact design
  • Pleasant temperatures in summer thanks to cooling via the heat pump and the bypass module in the ventilation system
  • High quality indoor air thanks to centralised ventilation with heat recovery and effective air filtration
  • Efficient preheating of the outdoor air using a heat pipe system in the refrigerant circuit

For existing heat pump owners:
is my heat pump compatible?

Requirements:

  • A WPMsystem controller is required
  • A compatible STIEBEL ELTRON ISG Connect or Web is required with the EM Trend for Solarwatt module installed
  • Cascade mode heat pumps aren't supported (dedicated heat pumps for hot water / heating are fine)

Air-source heat pumps:

  • HPA-O 07.2 Plus HK 230
  • HPA-O 10.2 W Plus HK 400
  • HPA-O 13.2 W Plus HK 400
  • HPA-O 10.2 Trend HK 230
  • HPA-O 13.2 Trend HK 400
  • WPL-A 05/07 HK 230 Premium
  • WPL-A 05/07 H 230 Premium
  • WPL-A 10/13 HK 400 Premium
  • WPL 07/09/17 ACS classic
  • WPL 09/17 ICS, IKCS classic
  • WPL 13-23 E / cool
  • WPL 15/25 A(C)(S)
  • WPL 20 A(C)
  • WPL 19/24 I, IK

Ground-source heat pumps:

  • WPE-I 04/06/08/12/15 H 230 Premium
  • WPE-I 04/06/08/12/15 HKW 230 Premium
  • WPE-I 04/06/08/12/15 HW 230 Premium
  • WPE-I 04/06/08/12/15 HK 230 Premium

Integrated ventilation units:

  • LWZ 05.1 Premium HKWL 230
  • LWZ 05.1 Plus H(K)WL 230
  • LWZ 07.1 Premium HKL 230
  • LWZ 07.1 Premium HKWL 230
  • LWZ 5 CS Premium
  • LWZ 5 S Plus
  • LWZ 5 S Smart
  • LWZ 5 S Trend
  • LWZ 504
  • LWZ 8 CS Trend
  • LWZ 8 CS Premium
  • LWZ 8 S Trend

Vaillant air-source heat pumps that are installed with the listed 'Internet module' gateways are supported, but please consult your local engineer.

Supported Vaillant internet modules:

  • Internet module sensoNET VR 921
  • Internet module Vaillant Gateway VR940f
  • Internet module VR 920

Bosch air-source heat pumps that are installed with the listed 'Gateway module' gateways are supported, but please consult your local engineer.

Supported Bosch gateways:

  • BOSCH Gateway Module Connect Key K 40 RF

Wolf air-source heat pumps that are installed with the listed 'Home link' gateways are supported, but please consult your local engineer.

Supported Wolf controllers:

  • WOLF Link Home with firmware version ≥ 5.00
  • WOLF Link Pro

Buderus air-source heat pumps that are installed with the listed controllers are supported, but please consult your local engineer.

Supported Buderus controllers:

  • LAN and wireless module MX 400

The following Panasonic air-source heat pumps are compatible when installed with a controller connected to the internet.

Supported Panasonic heat pumps:

  • Panasonic Aquarea H
  • Panasonic Aquarea J
  • Panasonic Aquarea K
  • Panasonic Aquarea L
  • Panasonic Aquarea M

The following Veissmann air-source heat pumps are compatible when installed with a controller connected to the internet.

Supported Veissmann heat pumps:

  • Veissmann Vitocal series

Heat pumps with SG ready relay inputs that are marked as 'SG Ready' can be wired in for the purpose of running the heat pump to divert excess solar power to pre-heat your hot water tank. This requires an additional accessory for the SOLARWATT Manager to connect the device and some physical wiring, but is supported.

For more information, please consult the SOLARWATT Manager online manual.

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