# Buffer tank KOSPEL SV-400.1 unenameled in insulation, 400 L capacity

**URL:** https://aio.lv/en/product--kospel-sv-4001pl--11888129
**Data updated:** 2026-03-09 21:11 (EET)
**Category:** Heating Radiators
**Manufacturer:** KOSPEL
**Manufacturer code:** SV-400.1.PL
**EAN:** 5906564221583
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 715.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 591.73 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kospel-sv-4001pl--11888129

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Unenameled buffer tank KOSPEL SV-400.1 with thermal insulation, designed for hydraulic separation and heat storage in heating systems. Nominal capacity 400 liters; suitable for integration with boilers, heat pumps or solar thermal installations. Steel construction without enamel coating provides robust thermal mass; insulation reduces standby heat loss. Used to stabilize system flow, increase accumulation and optimize heat source cycling.

## Long description

Buffer tank KOSPEL SV-400.1 unenameled in insulation, 400 L capacity is a steel thermal storage vessel intended for hydraulic separation and heat accumulation in central heating installations. With a nominal volume of 400 litres and unenameled steel construction, the tank offers substantial thermal mass for stabilising system temperature and reducing frequent cycling of heat sources such as boilers, heat pumps or solar thermal collectors. The external thermal insulation reduces standby heat losses while the unenameled interior is suitable for systems where enamel coating is not required or where additional internal treatments are planned.
Advantages
The buffer tank provides effective hydraulic separation between the heat source and distribution circuits, helping to stabilise flow and pressure. Its 400 L capacity increases accumulation capability to reduce short cycling of boilers and heat pumps and to improve overall system efficiency. Steel construction without enamel offers robust mechanical strength and straightforward compatibility with various connection and maintenance practices. External thermal insulation minimises heat loss during standby periods and contributes to consistent delivery of stored heat.
Suitable for
Integration with gas, oil or biomass boilers for central heating and hot water systems
Coupling to air-source or ground-source heat pumps to improve cycling and performance
Connection with solar thermal installations to store collected heat for later use
Systems requiring hydraulic separation between multiple circuits or heat sources
Key specifications
Nominal volume: 400 litres
Construction material: steel (unenameled interior)
Thermal insulation: external insulation shell to reduce standby losses
Purpose: hydraulic separation and thermal energy accumulation in heating systems
Typical applications: boilers, heat pumps, solar thermal integration
How to use
Install the buffer tank according to local plumbing and heating regulations, ensuring correct orientation and secure connections to primary and secondary circuits. Provide appropriate mounting support for the tank weight when filled. Connect supply and return lines with suitable fittings and, where required, include valves, pumps and sensors to manage flow and temperature. Commission the system by filling, venting air, and checking for leaks; set control parameters on the heat source and circulation pumps to take advantage of the tank’s storage and separation functions.
Usage recommendations
For reliable performance, select pipework, pumps and control strategies sized for the tank’s 400 L capacity. Regularly inspect insulation and external surfaces for damage, monitor system water quality to prevent corrosion in an unenameled tank, and follow manufacturer instructions for maintenance intervals. When integrating with solar or multiple heat sources, use appropriate stratification and charging controls to maximize stored energy usability.

## FAQ

### How much does the Buffer tank KOSPEL SV-400.1, 400 L cost, and is it available for purchase?

The price is 715.99 € (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 14.07.2026 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 Buffer tank KOSPEL SV-400.1, 400 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 KOSPEL 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 KOSPEL 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/11888129/67309291_large.webp