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header-product Water heater Galmet SGW(S)B Tower Biwal 400 — bi‑valent storage tank, 400 L capacity

Water heater Galmet SGW(S)B Tower Biwal 400 — bi‑valent storage tank, 400 L capacity

Galmet SGW(S)B Tower Biwal 400 water heater Photo 1
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Short description

Galmet SGW(S)B Tower Biwal 400 is a bi‑valent storage water heater with a 400‑litre tank designed for combined heat sources. It functions as a domestic hot water accumulator compatible with central heating systems and auxiliary heaters, enabling efficient hot water delivery for large households or small commercial sites. Key terms: bi‑valent storage tank, domestic hot water, 400 L capacity, integration with heating systems.
Warranty: 2 Years
SKU: 11888049
Manufacturer: Galmet
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Product information

Description

Galmet SGW(S)B Tower Biwal 400 is a bi‑valent storage water heater with a 400‑litre tank engineered for integration with central heating systems and auxiliary heat sources. Designed as a domestic hot water accumulator, it stores and supplies hot water reliably for large households or small commercial sites. The unit supports combination use of primary and secondary heat sources to improve system flexibility and efficiency while maintaining a stable domestic hot water supply.

Advantages

The bi‑valent design allows connection of two heat sources, enabling seamless switching or simultaneous use of a central boiler and an auxiliary heater. A 400 L capacity ensures extended availability of hot water, reducing cycling of heat sources and improving energy management. Constructed for compatibility with standard heating installations, the heater offers straightforward hydraulic integration and steady thermal storage for domestic hot water needs.

Suitable for

  • Large households with high hot water demand
  • Small commercial sites such as guesthouses, offices, or workshops
  • Systems combining a central heating boiler and an auxiliary heat source (e.g., solar, heat pump, or electric heater)

Key specifications

  • Tank capacity: 400 litres
  • Type: bi‑valent (two heat source) storage water heater
  • Application: domestic hot water accumulator compatible with central heating systems
  • Installation orientation: upright tower design
  • Intended use: combined operation with primary and auxiliary heat sources for DHW supply

How to use

Install the Galmet SGW(S)B Tower Biwal 400 in vertical orientation according to local standards and manufacturer installation guidelines. Connect the primary heat source (central heating boiler or similar) to the designated inlet and the auxiliary heater to the secondary inlet. Ensure correct hydraulic balancing, appropriate safety devices, correct expansion vessel sizing and proper temperature controls are fitted. Commission the system by filling, venting, and gradually heating the tank while checking for leaks and correct operation of valves and sensors.

Usage recommendations

Use thermostatic mixing valves at delivery points to maintain safe tap temperatures and reduce scalding risk. For systems with variable renewable input (solar or heat pump), configure control logic to prioritise auxiliary or primary source according to availability and efficiency. Periodic inspection of anode protection (if applicable), insulation integrity and connections will help maintain performance and prolong service life.

Description

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Customer questions

FAQ

How much does the Galmet SGW(S)B Tower Biwal 400 water heater cost, and is it available for purchase?

The price is 1,383.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 SGW(S)B Tower Biwal 400 water heater be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Galmet SGW(S)B Tower Biwal 400 water heater online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.