# Storage water heater Biawar Wymiennik MEGA W-E 125.81 125 L with spiral coil, model 16411

**URL:** https://aio.lv/en/product--biawar-16411--11888099
**Data updated:** 2026-03-09 21:11 (EET)
**Category:** Water Heaters
**Manufacturer:** Biawar
**Manufacturer code:** 16411
**EAN:** 5901862079126
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 548.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 453.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--biawar-16411--11888099

## Delivery options

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

## Summary description

Biawar Wymiennik MEGA W-E 125.81 (model 16411) is a 125‑litre storage water heater equipped with an internal spiral heat exchanger (wężownica). Designed to store and heat domestic hot water, it enables connection to external heat sources via the coil. Suitable for residential and light-commercial installations where a buffer tank with heat-exchange capability is required.

## Long description

Biawar Wymiennik MEGA W-E 125.81 is a 125-litre storage water heater with an internal spiral heat exchanger designed to store and distribute domestic hot water. The tank integrates a coiled heat exchanger (wężownica) that allows connection to external heat sources such as boilers, solar thermal systems or other low-temperature circuits, providing stable hot water supply and enabling indirect heating. The unit is intended for residential and light-commercial installations where a buffer tank with heat-exchange capability is required.
Advantages
The storage water heater combines a high-capacity storage volume with an internal spiral coil that increases heat transfer efficiency while maintaining a compact footprint. Its design supports indirect heating from various external sources, allowing integration with existing heating systems. The enclosed tank construction reduces heat loss and ensures consistent hot water availability, while the spiral coil provides reliable separation between primary and domestic water circuits.
Suitable for
 Domestic hot water storage in single-family homes
 Integration with boilers and central heating systems as a buffer tank
 Connection to solar thermal collectors for preheating DHW
 Light-commercial installations requiring a compact indirect water heater
Key specifications
 Storage capacity: 125 litres
 Internal heat exchanger type: spiral coil (wężownica)
 Intended application: indirect domestic hot water heating and buffering
 Installation: vertical orientation (tank designed for standard mounting)
 Suitable heat sources: boilers, solar thermal systems, low-temperature circuits
How to use
Install the water heater according to local regulations and manufacturer mounting guidelines, ensuring correct hydraulic connections for the spiral coil and domestic water inlets/outlets. Connect the coil to the chosen external heat source following the recommended flow direction and include necessary safety devices such as pressure relief valves, expansion vessels and temperature controls. After filling and bleeding the system, verify correct operation and temperature regulation before regular use.
Usage recommendations
For optimal performance, use the spiral coil with a heat source that provides stable flow and temperature control. Regularly inspect insulation, fittings and safety devices, and perform periodic maintenance that includes flushing the coil if required by water quality. Ensure proper placement of thermostats and mixing valves to avoid scalding and to maintain energy-efficient operation.

## FAQ

### How much does the Biawar Wymiennik MEGA W-E 125.81 125 L cost, and is it available for purchase?

The price is 548.49 € (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 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 Biawar Wymiennik MEGA W-E 125.81 125 L 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 Biawar 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 Biawar 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/11888099/67309256_large.webp