# Heat meter B\_METERS Hydrocal M-3 Dn15 Q=0.6 P (DWZ) — compact DN15 thermal energy meter, Q=0.6 m3/h

**URL:** https://aio.lv/en/product--bmeters-000032--11776942
**Data updated:** 2026-03-08 22:46 (EET)
**Category:** Measuring tools
**Manufacturer:** B\_METERS
**Manufacturer code:** 000032
**EAN:** 5905505263699
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 97.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 80.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bmeters-000032--11776942

## 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

The B\_METERS Hydrocal M-3 is a compact heat (thermal energy) meter designed for measuring heat consumption in heating systems. Specified as DN15 with a nominal flow Q=0.6 m3/h, it records thermal energy based on flow and temperature difference. Suitable for residential or small commercial applications, it enables billing, monitoring of heat usage and integration into metering setups requiring a small-diameter meter.

## Long description

The B\_METERS Hydrocal M-3 Dn15 Q=0.6 P (DWZ) is a compact DN15 thermal energy (heat) meter designed to measure heat consumption in heating systems. It determines delivered thermal energy by combining volumetric flow measurement with temperature difference readings, providing the data needed for accurate billing and consumption monitoring in residential and small commercial installations. Its small-diameter design and nominal flow Q=0.6 m3/h make it suitable for installations with limited pipe space or low flow demands.
Advantages
The meter offers compact dimensions and a DN15 connection size that simplify installation in tight spaces. By measuring both flow and temperature differential it delivers direct thermal energy readings, reducing the need for separate calculations. The design supports reliable, repeatable measurements at low nominal flow (Q=0.6 m3/h), helping to ensure accurate accounting in single-apartment or small-object heating circuits. The unit is a practical choice where a small, integrated solution is required for monitoring and billing heat consumption.
Suitable for
Residential apartments and single-family houses
Small commercial premises and offices
Individual heating circuits with DN15 piping
Metering points with low to moderate flow rates (around Q=0.6 m3/h)
Key specifications
Connection size: DN15 (suitable for 15 mm pipelines)
Nominal flow rate: Q = 0.6 m3/h
Measurement principle: volumetric flow combined with temperature difference
Application: thermal energy (heat) measurement for heating systems
Typical installation: compact inline mounting on supply or return pipework
How to use
Install the Hydrocal M-3 in the heating circuit according to the direction of flow indicated on the meter body, ensuring secure DN15 connections and appropriate sealing. Connect the temperature sensors or integrated sensors to the designated ports and verify correct orientation and contact. After installation, verify system tightness and perform an initial functional check by running the heating system while observing flow and temperature readings. Use the meter readings to record cumulative thermal energy usage or integrate the meter output into a building management or billing system where applicable.
Usage recommendations
For reliable long-term performance, install the meter in a location protected from freezing, mechanical shock and excessive vibration. Ensure straight pipe runs upstream and downstream where recommended by the manufacturer to minimise flow disturbances. Schedule periodic verification and maintenance according to local metering regulations and good practice to maintain measurement accuracy.

## FAQ

### How much does the Heat meter B\_METERS Hydrocal M-3 cost, and is it available for purchase?

The price is 97.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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. All transactions are 100% secure and encrypted.

### Can Heat meter B\_METERS Hydrocal M-3 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 B\_METERS 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 B\_METERS 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/11776942/68526276_large.webp