How to Connect Vaillant Heat Pumps and Boilers with the Zerofy App

Supported Heating Systems

  • Heat pumps
  • Boilers

Supported Gateways

  • myVAILLANT connect / MiGo Link
  • sensoNET / MiLink
  • eRELAX / vSMART / MiGo

Specifically supported controllers: eRELAX, E7C, VRT-350, VRC-720, VRC-710, VRT-380

Preconditions

  • Your Vaillant heating system must be connected to a supported gateway.
  • The gateway must be set up and connected to the internet.
  • You need the gateway’s serial number to connect.

Finding Your Gateway Serial Number

When connecting your Vaillant heating system in Zerofy, you need to enter the gateway serial number.

Where to find it:

  1. On the gateway itself: The serial number is printed on the back of the gateway device.

  2. In the Vaillant app: Go to the “Status” tab and find the “Gateway” section. The serial number is displayed there and can be copied directly.

Connecting Your Vaillant System with Zerofy

  1. Open Zerofy.
  2. Add a new Vaillant device.
  3. Enter the serial number of your gateway.
  4. Follow the on-screen prompts to complete the connection.

Features and Things to Know

With Vaillant integration, you can:

  • Monitor your heat pump or boiler remotely.
  • View energy consumption and heating data.
  • Monitor and adjust temperatures directly from the app.
  • Optimize heating efficiency based on energy prices and solar production.

Visible Devices

For compatible heat pumps, two devices will appear in Zerofy:

  • Space Heating – controls and monitors the heating circuit
  • Hot Water Tank – controls and monitors the domestic hot water

Autopilot Integration

The Autopilot Smart and Solar optimization modes currently control the hot water tank heating to optimize energy costs. The system automatically boosts hot water production when:

  • Electricity prices are low
  • Excess solar energy is available

This helps maximize self-consumption and reduce energy costs without any manual intervention.

Space heating control is coming soon.