Solibuffer 50L
A 50-liter buffer tank designed to optimize heating efficiency, extend heat pump lifespan, and ensure
Solitank 200L
Solitank 200L
The Solitank 200L 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.
Instant Hygienic Hot Water with Buffer Tank Performance
Solitank 200L Hygienic Hot Water Storage Tank
Hygienic Storage Tank
The Solitank 200L 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 200L 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 200L 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 200L is the ideal choice for efficient and reliable hot water storage and heating support.
Your All-in-One Heating and Hot Water Solution
The Solitank series offers advanced hot water storage solutions designed to maximize energy efficiency and system durability. With capacities ranging from 200 to 1000 liters, Solitank seamlessly integrates into residential and commercial heating systems, providing exceptional performance and reliability.
Product information
Energy efficiency class
-
C
Heat loss
W
74
Tank volume
L
170
Basic data
Weight
kg
67
Dimensions (height/diameter)
mm
1200 X 540
Max permissible boiler water temperature
°C
95
Maximum working pressure
bar
6
Insulating material
-
PU
Insulating thickness
mm
50
Outer cylinder material
-
Static painted galvanized sheet
Domestic water exchanger (AISI 316L)
Water volume of the heat exchanger
L
12
Domestic water heat exchanger surface area
m²
3.8
Maximum working pressure
bar
6
Pipe connection
Feed water in/out
inch
G 1 1/4"
Underfloor heating in/out
inch
G 1 1/4"
Electric heater
inch
G 1 1/4"
Domestic water in/out
inch
G 3/4"
Sensor
inch
G 1/2"
Emptying
inch
G 1/2"
Product information
Energy efficiency class
-
C
Heat loss
W
85
Tank volume
L
245
Basic data
Weight
kg
85
Dimensions (height/diameter)
mm
1750 X 540
Max permissible boiler water temperature
°C
95
Maximum working pressure
bar
6
Insulating material
-
PU
Insulating thickness
mm
50
Outer cylinder material
-
Static painted galvanized sheet
Domestic water exchanger (AISI 316L)
Water volume of the heat exchanger
L
12
Domestic water heat exchanger surface area
m²
3.8
Maximum working pressure
bar
6
Pipe connection
Feed water in/out
inch
G 1 1/4"
Underfloor heating in/out
inch
G 1 1/4"
Electric heater
inch
G 1 1/4"
Domestic water in/out
inch
G 3/4"
Sensor
inch
G 1/2"
Emptying
inch
G 1/2"
Product information
Energy efficiency class
-
D
Heat loss
W
140
Tank volume
L
460
Basic data
Weight
kg
106
Dimensions (height/diameter)
mm
1700 X 750
Max permissible boiler water temperature
°C
95
Maximum working pressure
bar
6
Insulating material
-
PU
Insulating thickness
mm
50
Outer cylinder material
-
Static painted galvanized sheet
Domestic water exchanger (AISI 316L)
Water volume of the heat exchanger
L
13.5
Domestic water heat exchanger surface area
m²
4.3
Maximum working pressure
bar
6
Pipe connection
Feed water in/out
inch
G 2"
Underfloor heating in/out
inch
G 2"
Electric heater
inch
G 2"
Domestic water in/out
inch
G 3/4"
Sensor
inch
G 1/2"
Emptying
inch
G 1/2"
Product information
Energy efficiency class
-
E
Heat loss
W
195
Tank volume
L
850
Basic data
Weight
kg
165
Dimensions (height/diameter)
mm
1850 X 1010
Max permissible boiler water temperature
°C
95
Maximum working pressure
bar
6
Insulating material
-
Sponge
Insulating thickness
mm
80
Outer cylinder material
-
Artificial leather
Domestic water exchanger (AISI 316L)
Water volume of the heat exchanger
L
22.5
Domestic water heat exchanger surface area
m²
7.2
Maximum working pressure
bar
6
Pipe connection
Feed water in/out
inch
G 2"
Underfloor heating in/out
inch
G 2"
Electric heater
inch
G 2"
Domestic water in/out
inch
G 3/4"
Sensor
inch
G 1/2"
Emptying
inch
G 1/2"
Product information
Energy efficiency class
-
E
Heat loss
W
220
Tank volume
L
1030
Basic data
Weight
kg
190
Dimensions (height/diameter)
mm
2150 X 1010
Max permissible boiler water temperature
°C
95
Maximum working pressure
bar
6
Insulating material
-
Sponge
Insulating thickness
mm
80
Outer cylinder material
-
Artificial leather
Domestic water exchanger (AISI 316L)
Water volume of the heat exchanger
L
27.5
Domestic water heat exchanger surface area
m²
8.7
Maximum working pressure
bar
6
Pipe connection
Feed water in/out
inch
G 2"
Underfloor heating in/out
inch
G 2"
Electric heater
inch
G 2"
Domestic water in/out
inch
G 3/4"
Sensor
inch
G 1/2"
Emptying
inch
G 1/2"
Notes
- Heat exchanger material: AISI 316L stainless steel.
- Insulation (200-500 L): 50 mm thick, 40 kg/m³ polyurethane.
- Insulation (500-1000 L): 18 kg/m³ sponge insulation.
- Optional electric heater can be added for additional heating support.
- Turbulent flow in the stainless steel hose enhances heat transfer and efficiency.
- No anode rod required, ensuring low-maintenance operation.
- Capacity options: 200 L, 300 L, 500 L, 800 L, 1000 L.
Contact quality@solimpeks.com for local certificates / OEM certificate duplication requests.
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 200L.
How does the Solitank 200L 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 200L 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 200L?
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 200 L tank covers about 4-6 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 200L?
The domestic-water heat exchanger provides 3.8 m² of transfer surface. Standing heat loss is 74 W (ErP class C).
Is the Solitank 200L certified?
The Solitank 200L 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.
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