# Heating set Purmo DX4 with Grundfos UPM3S Auto 25-60 circulation pumps

**URL:** https://aio.lv/en/product--purmo-656131--11953967
**Data updated:** 2026-03-11 13:51 (EET)
**Category:** Heating Radiators
**Manufacturer:** Purmo
**Manufacturer code:** 656131
**EAN:** 5902052119608
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 902.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 745.86 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--purmo-656131--11953967

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Purmo DX4 heating set including Grundfos UPM3S Auto 25-60 circulation pumps. Designed for central heating systems, the set provides pump-controlled water circulation with integrated motor electronics and automatic regulation. Suitable for residential or light commercial installations requiring reliable circulation, energy-efficient operation, and simple integration into radiator or floor-heating circuits.

## Long description

Purmo DX4 heating set with Grundfos UPM3S Auto 25-60 circulation pumps is a complete solution for pump-controlled water circulation in central heating systems. The kit is intended for radiator and light floor-heating circuits in residential and small commercial installations. It integrates circulation pumps with built-in motor electronics and automatic regulation to maintain steady flow, optimize energy use and simplify installation and operation.
Advantages
The Purmo DX4 heating set offers compact, preassembled components that reduce installation time and minimize potential errors. Integrated pump electronics and automatic regulation deliver energy-efficient operation and adaptive flow control according to system demand. The design supports quiet operation and reliable performance for continuous circulation in heating circuits. The set is compatible with standard heating system piping and facilitates straightforward connection to existing manifolds and radiators.
Suitable for
 Residential central heating systems with radiator circuits
 Small commercial or light-commercial heating installations
 Underfloor heating circuits requiring pump-regulated flow
 Replacement or upgrade of existing circulation pump assemblies
Key specifications
 Circulation pump type: electronically controlled centrifugal pump with integrated motor electronics
 Pump operating range: suited for medium head and flow typical of domestic heating loops
 Automatic regulation: built-in automatic control for adaptive flow and energy optimization
 Noise level: designed for low-noise operation suitable for residential use
 Compatibility: intended for integration with radiator and light underfloor heating circuits
 Materials and connections: corrosion-resistant hydraulic components with standard threaded connections for easy installation
How to use
Install the Purmo DX4 heating set in the return or supply line of your central heating circuit following local regulations and installation guidelines. Ensure system is depressurized and electrically isolated before replacing or fitting the circulation pump. Connect hydraulic fittings to the heating loop and secure electrical connections to a suitable supply and control interface. Commission the system by filling, venting, and checking for leaks, then power the pump and allow automatic regulation to establish appropriate flow rates through the circuit.
Usage recommendations
Verify compatibility with piping dimensions and control systems prior to installation; use appropriate valves and air vents when integrating into radiator or underfloor circuits. Regular maintenance, including periodic inspection for leaks and checking pump operation, will help preserve energy efficiency and prolong service life.

## FAQ

### How much does the Purmo DX4 heating set with Grundfos UPM3S Auto 25-60 cost, and is it available for purchase?

The price is 902.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can Purmo DX4 heating set with Grundfos UPM3S Auto 25-60 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Purmo 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 Purmo 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/11953967/67398180_large.webp