Wilo-Varios PICO-STG – One size fits all

A universal solution for installers and users

Every installation is different, but you need to be sure that you are choosing a pump that will work right away. That’s why Wilo-Varios PICO-STG was created – a circulation pump that is a universal replacement for most old and new models on the market.
Just two types of pumps can replace up to 85% of all applications in single-family homes and duplexes. This means less stock, faster service, and greater certainty for installers and end customers.

Two models that cover almost everything

– Wilo-Varios PICO-STG 15/1-8 130 mm (4232742)
Replacement for most OEM pumps integrated in devices – not only in boilers, but also in heat pumps, hot water storage tanks, or compact heating units. Thanks to its compact dimensions and flexible design, it fits into confined spaces.

– Wilo-Varios PICO-STG 25/1-8 180 mm (4232743)
Universal circulation pump for most common applications:

• Radiator heating
• Underfloor heating
• cooling systems
• solar systems
• geothermal systems

Main advantages of Varios PICO-STG

• One size fits all – just two models cover most installations.
• Universal compatibility – ideal for replacements and new installations.
• Easy installation – quick connection using Wilo-Connector or Molex, no special tools required.
• Simple settings – three operating modes (radiators, underfloor heating, fixed speed).
• Sync Assistant – easily adapts to the characteristic curve of the old pump.
• iPWM control – also suitable for solar and geothermal applications.
• Compact design – installation even in confined spaces.
• Energy-efficient operation – very low EEI index (<0.20).
• 5-year warranty – long-term reliability guaranteed.

Easy setup thanks to the Wilo guide.

One of the biggest advantages of the Wilo-Varios PICO-STG pump is its simple and quick commissioning.

You have at your disposal:

• Wilo online wizard – simply enter the basic data and the system will suggest the optimal settings.
• Wilo-Assistant mobile app – the Sync Assistant function allows you to copy the characteristic curve of the old pump and set up the new one in a matter of minutes.

Example of pump settings

1. Press and hold both green buttons for 3 seconds – this activates the programming mode.
2. Use the lower button to select functions (e.g., radiators, floor heating, fixed speed).
3. Use the upper button to change the position of the LED, which indicates the specific mode.
4. Press both buttons briefly to save the settings. The LEDs will flash three times and the pump is ready for operation.
5. Intuitive controls and clear LED indicators ensure that even less experienced users can easily manage the settings.

Recommended accessories for Varios PICO-STG

For maximum efficiency and convenience during operation, we recommend using original Wilo accessories:

– Thermal insulation plate (item number: 4206066)

• Minimizes heat loss
• Reduces the overall energy consumption of the heating system
• Protects against moisture
• Environmentally friendly, 100% recyclable

– iPWM signal cable (item number: 4222049)

• Bidirectional iPWM signal cable for external control
• Easy connection to the iPWM pump interface
• Easy installation using plugs and bare cable ends with terminals

Practical examples of use

• Emergency replacement of a boiler pump over the weekend – the plumber only has one pump with him and the customer’s heating is working immediately.
• Installation in a new building with underfloor heating – the universal pump will also cover the future needs of the system.
• Modernization of a system with solar heating – thanks to iPWM control, efficiency is ensured even in fluctuating conditions.
• Geothermal heating – long and continuous operation without unnecessary energy losses.

Why choose Wilo-Varios PICO-STG?

Because it saves time, space, and energy. Installers don’t have to search for the right model – two types of pumps are enough to solve 85% of all situations. The end customer gets an energy-efficient and reliable pump with a 5-year warranty.

👉 Wilo-Varios PICO-STG – one pump for almost all applications.