# Mixing Unit for Underfloor Heating FERRO GM40GPA with 1" Connections and Electronic Pump 25-40/130

**URL:** https://aio.lv/en/product--ferro-gm40gpa--12037506
**Data updated:** 2026-03-12 16:46 (EET)
**Category:** Water Pumps
**Manufacturer:** FERRO
**Manufacturer code:** GM40GPA
**EAN:** 5901095691461
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

FERRO GM40GPA is a mixing unit for underfloor heating featuring 1" connections and an integrated electronic circulation pump rated 25-40/130. The unit mixes supply and return flows to control floor heating temperature, enables hydraulic separation and circulation, and is suitable for residential and light-commercial heating circuits. Intended for installation in manifolds and distribution cabinets.

## Long description

FERRO GM40GPA is a compact mixing unit for underfloor heating designed for installation in manifolds and distribution cabinets. It integrates a 1" connection layout with an electronic circulation pump rated 25-40/130 to blend supply and return flows, enabling precise control of floor heating temperature and hydraulic separation between primary and secondary circuits. The unit is intended for residential and light-commercial heating circuits where stable low-temperature distribution and simple integration into existing systems are required.
Advantages
The mixing unit provides controlled temperature blending with consistent circulation thanks to the built-in electronic pump. Its 1" connections facilitate straightforward plumbing connections to common manifolds and piping systems. The design supports hydraulic separation and reliable pump operation across typical underfloor heating loads, reducing the need for additional components in many installations. Compact dimensions and factory-integrated pump simplify installation and maintenance compared with separate pump-and-mixing arrangements.
Suitable for
 Residential underfloor heating circuits
 Light-commercial low-temperature heating zones
 Installation in manifold cabinets and distribution panels
 Systems requiring hydraulic separation between boiler and floor loops
Key specifications
 Connection size: 1" threaded fittings suitable for standard heating manifolds
 Integrated circulation pump: electronic pump with performance class 25-40/130
 Function: thermostatic mixing of supply and return to control floor circuit temperature
 Application: designed for low-temperature underfloor heating distribution
 Installation location: manifold cabinets, distribution cabinets, or dedicated mounting near floor loops
How to use
Install the mixing unit according to local regulations and the manifold cabinet layout, ensuring correct orientation of supply and return connections. Connect the primary heat source and the underfloor heating circuits using 1" fittings, secure all joints and perform pressure and leak testing. Set the system controls so the electronic pump operates with appropriate flow and differential pressure for the size of the floor circuit. Commission the circuit by gradually ramping to operating temperature while checking temperature and flow balance across the floor zones.
Usage recommendations
During commissioning and routine maintenance, verify pump electrical supply and settings, inspect for leaks, and confirm stable mixing performance. Use appropriate air separation and filtration upstream to protect the pump and valve assemblies. For optimal operation, match system balancing valves and thermostats to the unit's flow capacity and consult local installation codes.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All FERRO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized FERRO service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12037506/67524799_large.webp