# Onnline PAW HEATBLOC BASIC34 DN 25 Pump Group with Mixing Valve

**URL:** https://aio.lv/en/product--onnline-4636061--12456920
**Data updated:** 2026-05-18 09:43 (EEST)
**Category:** Heating Radiators
**Manufacturer:** Onnline
**Manufacturer code:** 4636061
**EAN:** 4251401515457
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 157.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 130.57 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--onnline-4636061--12456920

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

The Onnline PAW HEATBLOC BASIC34 DN 25 is a professional pump group designed for efficient heating system management. Equipped with an integrated mixing valve, this unit ensures precise temperature control and optimal flow distribution. It is engineered for reliable performance in residential and commercial hydronic installations, facilitating easy installation and maintenance of circulation systems.

## Long description

The Onnline PAW HEATBLOC BASIC34 DN 25 is a professional pump group engineered for the precise management of hydronic heating systems. This unit features an integrated mixing valve that allows for accurate temperature regulation and efficient flow distribution within the circuit. Designed for both residential and commercial applications, it provides a robust solution for maintaining consistent heating performance while simplifying the installation and maintenance process of circulation systems.
Advantages
This pump group offers exceptional reliability and efficiency in heating system control. The integrated mixing valve ensures that the supply temperature is perfectly adjusted to the requirements of the heating circuit, which helps in optimizing energy consumption and improving overall system comfort. Its compact design and high-quality components facilitate a straightforward installation process, reducing labor time and ensuring long-term operational stability in various hydronic setups.
Suitable for
Residential heating systems
Commercial hydronic installations
Underfloor heating circuits
Radiator heating systems
Systems requiring precise temperature control
When it may not be suitable
This unit is not designed for use in domestic hot water supply systems or industrial processes involving aggressive or non-hydronic fluids. It may also be unsuitable for systems that require flow rates or pressure levels exceeding the technical capacity of the DN 25 standard.
Key specifications
Nominal diameter: DN 25
Integrated mixing valve for temperature control
Compatible with standard circulation pumps
Designed for hydronic heating applications
Compact, insulated housing
How to use
The pump group should be installed by a qualified professional in accordance with local heating system regulations. It is typically mounted directly onto the heating manifold or the primary supply line. Ensure that all pipe connections are properly sealed and that the mixing valve is calibrated to the desired temperature setpoint. Once installed, the circulation pump should be configured to match the hydraulic requirements of the specific heating circuit.
What to consider before purchase
Compatibility with your existing pump model
Required flow rate for your heating circuit
Space availability for the installation of the unit
Compatibility with the heating system control logic
Usage recommendations
Regularly inspect the pump group for any signs of leaks or unusual noise during operation. Ensure that the mixing valve is serviced periodically to maintain accurate temperature regulation and prevent the accumulation of debris within the valve mechanism.

## FAQ

### How much does the Onnline PAW HEATBLOC BASIC34 DN 25 Pump Group cost, and is it available for purchase?

The price is 157.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 36 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 07.07.2026 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. All transactions are 100% secure and encrypted.

### Can Onnline PAW HEATBLOC BASIC34 DN 25 Pump Group 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 Onnline 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 Onnline 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/12456920/68759119_large.webp