Solitank 500L

Name: Solitank 500L
Brand: SOLIMPEKS

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Solitank 500L

The Solitank 500L is a high-performance hot water storage tank that combines domestic hot water production and buffer tank functionality in one unit, designed for residential and commercial applications.

Dual Functionality: Combines domestic hot water production and buffer tank functionality for heating support.
Instant Hot Water: AISI 316L stainless steel heat exchanger ensures hygienic and instant hot water, preventing Legionella growth.
Heat Pump Protection: Acts as a buffer tank to prevent short cycling, extending the lifespan of your heat pump.
Advanced Insulation: High-density polyurethane or sponge insulation minimizes heat loss and maximizes energy efficiency.
Low Maintenance: No anode rod required and self-cleaning stainless steel hose for hassle-free operation.

Efficient, Hygienic, and Reliable Hot Water Storage

Solitank 500L Hygienic Hot Water Storage Tank

Hygienic Storage Tank

The Solitank 500L is a high-performance hot water storage tank that combines domestic hot water production and buffer tank functionality in one unit. Designed for residential and commercial applications, it ensures optimal energy utilization and system efficiency.

Equipped with a heat exchanger made of AISI 316L stainless steel, the Solitank 500L provides instant hot water, preventing the growth of Legionella and other bacteria. Its buffer tank functionality protects heat pumps from the negative effects of short cycling, reducing operational costs and extending the system's lifespan.

The Solitank 500L features advanced insulation technology, with 50 mm thick polyurethane for 200–500 liter models and sponge insulation for 500–1000 liter models, minimizing heat loss and enhancing energy efficiency. It is compatible with multiple heat sources, including heat pumps and boilers, and can optionally be operated with an electric heater.

The stainless steel hose creates a turbulent flow, improving heat transfer efficiency by over 50% compared to traditional rigid pipes. Its corrugated design prevents lime and residue buildup, ensuring a longer service life and hygienic water storage.

With its maintenance-free design and high-quality insulation, the Solitank 500L is the ideal choice for efficient and reliable hot water storage and heating support.

Your All-in-One Solution for Hot Water and Heating Support

The Solitank series redefines modern hot water storage with its dual functionality: domestic hot water production and buffer tank capabilities. Available in capacities from 200 to 1000 liters, Solitank is engineered to integrate effortlessly into any heating setup, delivering unmatched efficiency and reliability. Perfect for both residential and commercial applications, Solitank is the ultimate choice for sustainable and cost-effective hot water solutions.

Customers 25M+

Countries with Service 96+

Warranty 5 Years

Capacity 500

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Understand the technology

Explainers from our Knowledge Hub on how this technology works.

Glossary Hygienic Tank (Fresh Water Combination Store) A hygienic tank is a combination store that heats drinking water instantaneously as it flows through a corrugated stainless-steel... Glossary Legionella & Anti-Legionella Cycle Legionella are waterborne bacteria that multiply in stored water between 20 and 45 °C and are killed within minutes above 60 °C... Common Questions What size hot water tank does my household need? Size a hot water tank at 30–50 litres per person per day: 80–120 L for two people, 150–200 L for a family of four on a boiler... FAQ Hot Water Tank & Storage FAQ Plan 30–50 litres of stored hot water per person, store at 60 °C and distribute at 50–55 °C through a mixing valve, and expect...

Frequently asked questions

Short, factual answers about the Solitank 500L.

How does the Solitank 500L keep domestic hot water hygienic?

Domestic hot water is heated on demand as it flows through an AISI 316L stainless-steel heat exchanger — mains water is not stored in the tank body. This fresh-water principle minimises stagnation, which is the main hygiene risk in stored hot water.

What functions does the Solitank 500L combine?

Two functions in one vessel: it produces domestic hot water through its hygienic stainless coil and provides buffer volume for heating support, so one tank serves both the taps and the heating circuit.

What size household suits the Solitank 500L?

Size hot water storage at 30-50 litres per person per day — and larger, 200-300 L for a family of four, when a heat pump or solar system charges the tank at lower temperature. At conventional reheat temperatures the 500 L tank covers about 10-16 people, fewer with heat-pump or solar charging; combined solar-plus-heating systems usually justify the larger models.

What are the key performance figures of the Solitank 500L?

The domestic-water heat exchanger provides 4.3 m² of transfer surface. Standing heat loss is 140 W (ErP class D).

Is the Solitank 500L certified?

The Solitank 500L is manufactured under Solimpeks' certified ISO 9001 (quality), ISO 45001 (occupational safety) and ISO 50001 (energy management) management systems. The certificate documents are displayed in the Certificates section of this page.