Discover how to choose the ideal hot water storage tank for your system. Compare tank types, materials, and energy-efficient solutions from Solimpeks.

What Is a Hot Water Storage Tank?

A hot water storage tank is a vital component of modern heating systems. It stores hot water for domestic or commercial use, ensuring a steady supply even during peak demand. Tanks work alongside heat sources such as boilers, solar thermal systems, or heat pumps, acting as buffers between energy generation and consumption.

Solimpeks Hot Water Storage Tank Types

Choosing the right tank starts with understanding the main types available. Each is designed for specific needs and systems:

1. Solibuffer Tanks perfectly compatible with heat pumps

With high-density insulation and a compact, maintenance-free design, it seamlessly integrates into various heating applications.

Solibuffer is a high-performance buffer tank engineered to enhance heating efficiency and protect heat pumps from short cycling. By separating the heat pump circuit and increasing system water volume, it reduces wear, operational costs, and ensures stable performance. With robust construction and energy-efficient insulation, Solibuffer ensures optimal heating performance, longevity, and cost savings.

Designed to store excess energy, it guarantees a steady hot water supply, making it ideal for radiant floor heating and space heating systems. It also supports defrost cycles, improving efficiency and ensuring faster system response for optimal comfort.

• Efficient Heat Management: Solibuffer ensures optimal heat distribution and storage, reducing energy waste and improving system efficiency.
• Heat Pump Protection: Safeguards your heat pump from short cycling, extending its lifespan and maintaining energy efficiency.
• Quick Response Times: Enhances heating system performance, ensuring rapid warmth when needed.
• Versatile Applications: Ideal for radiant floor heating and small-scale residential or specialized heating systems.
• Low Maintenance: Designed with high-quality insulation and no anode rod, requiring minimal upkeep.

The Solibuffer series delivers premium buffer tank solutions designed to optimize heating efficiency and durability. With a wide capacity range from 50 liters to 1000 liters, Solibuffer integrates seamlessly into both residential and commercial systems, ensuring exceptional performance and reliability.

Contact our sales team for custom capacity needs. 

2. Versatile Solitanks

• 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.

The Solitank series delivers versatile hot water storage solutions designed to optimize energy efficiency and system durability. With capacities ranging from 200 to 1000 liters, Solitank integrates seamlessly into residential and commercial systems, ensuring exceptional performance and reliability. Whether you’re using heat pumps, boilers, or other heat sources, Solitank provides a flexible and efficient solution for all your hot water and heating needs.

3. İnnovative Solikombi Tanks

• Function: Combines heating and hot water storage in a single compact unit.

• Best for: Space-constrained installations.

• Benefit: Saves space and simplifies installation.

The Solikombi series delivers multi-functional hot water storage solutions designed to optimize heating efficiency and durability. With a wide capacity range from 300 to 1000 liters, Solikombi integrates seamlessly into both residential and commercial systems, ensuring exceptional performance and reliability. Whether you’re using solar energy, heat pumps, or traditional boilers, Solikombi provides a versatile and efficient solution for all your heating and hot water needs.

4. Enamel-Coated Tanks

Solimpeks enamel-coated tanks are high-efficiency hot water storage tanks, specially designed for heat pump systems. Featuring an expanded coil surface, it provides rapid and consistent water heating with minimal energy consumption. Its titanium enamel-coated interior, high-density polyurethane insulation, and magnesium anode ensure long-lasting durability, corrosion resistance, and hygienic water storage.

Key Features to Consider When Selecting a Hot Water Tank

Choosing the ideal storage tank for hot water depends on several important factors:

1. Capacity

• Match the tank size to your daily consumption. Residential tanks range from 100 to 500 liters; commercial tanks may exceed 1,000 liters.

2. Insulation

• Look for high-quality polyurethane insulation to minimize heat loss.

• Well-insulated tanks maintain temperature longer, reducing energy use.

3. Material and Corrosion Resistance

• Stainless steel and enamel-coated steel are the most common materials.

• Inner coatings or anodes help prevent corrosion and prolong tank life.

4. System Compatibility

• Ensure compatibility with your heat pump, solar thermal system, or boiler.

• Tanks with built-in or external heat exchangers support renewable energy integration.

Why Choose Solimpeks Hot Water Storage Tanks?

With over 45 years of experience, Solimpeks is a global leader in renewable heating solutions. We offer:

• Wide capacity range: 100L to 2,000L+

• Advanced corrosion protection

• Custom-built tanks for unique system configurations

• Certified quality: CE, Solar Keymark, ISO 9001, and more

• Serving over 96 countries across 6 continents.

Frequently Asked Questions (FAQs)

Q: Can I use a storage tank with a solar thermal system?
A: Yes. We offer solar-compatible tanks with internal or external heat exchangers for efficient heat transfer.

Q: How long does hot water stay hot in a storage tank?
A: Depending on insulation quality, water can retain heat for 24–48 hours.

Q: Do storage tanks require maintenance?
A: Annual checks for corrosion, pressure, and anode integrity are recommended.

Still unsure which tank is best for your system? Let our experts help you make the right choice. Contact Solimpeks Today or browse our full product range.