# Galmet 500 biwal indirect water heater, two-coil heat exchanger, polyurethane insulation

**URL:** https://aio.lv/en/product--galmet-26-509000n--11888163
**Data updated:** 2026-03-09 23:58 (EET)
**Category:** Water Heaters
**Manufacturer:** Galmet
**Manufacturer code:** 26-509000N
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 449.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 1 198.34 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--galmet-26-509000n--11888163

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

Galmet 500 biwal indirect water heater with a two-coil (biwal) heat exchanger designed for domestic hot water production. The unit features polyurethane insulation and a vertical tower (stoj.) configuration. It supports connection to two heat sources via separate coils, offering efficient heat transfer for boilers and solar systems. Suitable for homes and small buildings.

## Long description

The Galmet 500 biwal indirect water heater is a vertical tank-type unit designed for domestic hot water production. It features a two-coil (biwal) heat exchanger arrangement that allows connection to two independent heat sources, such as a boiler and a solar thermal system. Polyurethane insulation reduces standby losses and helps maintain stored water temperature for reliable daily use in homes and small buildings.
Advantages
The two-coil design enables simultaneous integration of two heat sources, improving system flexibility and enabling prioritized or complementary heating strategies. Polyurethane insulation provides effective thermal retention while the vertical tower configuration minimises floor footprint. The construction is intended for stable, efficient heat transfer and straightforward connection to standard domestic plumbing and heating systems.
Suitable for
Homes requiring domestic hot water storage with multiple heat sources
Small multi-family buildings and apartments
Installations combining a boiler and solar thermal collectors
Replacement or retrofit projects where a compact vertical tank is preferred
Key specifications
Storage capacity: 500 litres
Heat exchanger type: two independent coils (biwal) for dual-source connection
Insulation: polyurethane foam for reduced standby heat loss
Orientation: vertical tower configuration to save floor space
Application: indirect water heating for domestic hot water systems
How to use
Connect the primary circuit(s) to the respective coils following installer instructions and local plumbing codes. The boiler or alternative heat source circulates through one coil while the secondary source, for example solar thermal, circulates through the other. Control and mixing valves should be used as appropriate to maintain desired delivery temperature and to prevent scalding. Regular commissioning by a qualified technician ensures correct flow rates, safe pressure settings and effective integration with existing heating equipment.
Usage recommendations
To maximise performance, insulate external piping, install appropriate safety and expansion components, and schedule periodic inspections for sediment removal and heat exchanger condition. Use a qualified installer to set up the dual-coil connections and control strategy suitable for your boiler and solar systems.

## FAQ

### How much does the Galmet 500 biwal indirect water heater cost, and is it available for purchase?

The price is 1,449.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 21.07.2026 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 Galmet 500 biwal indirect water heater 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 Galmet 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 Galmet 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/11888163/67309350_large.webp