# Heat meter Santech QHeat5 qp 2.5 m3/h DN20 — return line

**URL:** https://aio.lv/en/product--santech-d8qh52-000-00-0--12068681
**Data updated:** 2026-03-12 21:47 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** Santech
**Manufacturer code:** D8QH52-000-00-0
**EAN:** 5902730507833
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 189.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 156.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--santech-d8qh52-000-00-0--12068681

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Santech QHeat5 is a heat meter designed for return-line measurement in heating systems. Model QHeat5 qp 2.5 m3/h DN20 supports a nominal flow rate (qp) of 2.5 m3/h and DN20 connection size. It provides thermal energy and volume measurement for heating circuits, suitable for residential or small commercial installations where accurate return-side monitoring is required.

## Long description

Santech QHeat5 qp 2.5 m3/h DN20 — return line is a heat meter engineered for measuring thermal energy and water volume on the return side of heating circuits. Designed for residential and small commercial installations, this return-line meter monitors heat transfer and flow with a nominal flow rate of 2.5 m3/h and DN20 hydraulic connections. The compact design enables integration into existing piping while delivering the data needed for energy accounting and system monitoring.
Advantages
The meter provides reliable measurement of thermal energy and volumetric flow on the return line without introducing unnecessary complexity. Its qp 2.5 m3/h rating matches small to medium heating circuits, and the DN20 connection size makes it compatible with standard pipework. The device is intended for straightforward installation and stable performance in routine heating system operation, providing consistent readings for energy calculation and control tasks.
Suitable for
 Residential heating systems requiring return-side energy measurement
 Small commercial buildings and offices with localized heating circuits
 Retrofit projects where DN20 connections are present
 Energy monitoring and billing applications that use return-line data
Key specifications
 Nominal flow rate (qp): 2.5 m3/h
 Connection size: DN20
 Measurement: thermal energy and volumetric flow on the return line
 Application: heating circuit return-side monitoring
How to use
Install the Santech QHeat5 in the return pipe of the heating circuit in accordance with local plumbing and heating standards. Ensure correct pipe orientation and secure DN20 connections to prevent leaks. Connect the meter to the system monitoring or data collection interface as required by your setup, following manufacturer wiring and configuration instructions. After installation, verify readings against known flow conditions and perform any required calibration or commissioning steps.
Usage recommendations
Use this return-line heat meter where return-side measurement is necessary for energy accounting or system control. Maintain routine inspection of connections and follow periodic verification procedures to ensure ongoing measurement accuracy.

## FAQ

### How much does the Heat meter Santech QHeat5 qp 2.5 m3/h DN20 cost, and is it available for purchase?

The price is 189.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 25 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 16.07.2026 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 Heat meter Santech QHeat5 qp 2.5 m3/h DN20 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 Santech 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 Santech 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/12068681/67553630_large.webp