Delivers uninterrupted water at consumption peaks
During high-demand hours, the hot water accumulated in the tank covers demand independent of the heat source's instantaneous production capacity.
Product group · Pressure Vessels
Accumulation Tanks
Accumulation tanks store the hot water produced so it stays available without interruption during peak consumption hours, letting the heat source run at a lower, more stable capacity. We supply insulated accumulation tanks for calorifier, solar energy and central system applications, with volume and connection options to match.
Volume500 – 5000 L
Operating pressure3 – 10 bar
ShellCarbon steel / stainless
ConnectionsMulti-port option
Why it matters
What does an accumulation tank do?
It delivers uninterrupted hot water at consumption peaks, independent of the heat source's instantaneous capacity.
Lets the heat source run at a lower capacity
The boiler or solar energy system can run at a steady, low capacity to fill the tank; this raises efficiency and extends equipment life.
Reduces heat loss with a highly insulated shell
A thick insulation jacket keeps the stored water's temperature for a long time, minimizing energy waste.
Multiple ports combine different sources
Several heat sources (boiler, solar energy, waste heat) can be connected to the same tank, increasing the flexibility of central systems.
Types
Sub-types of accumulation tanks
All three store the hot water produced; what sets them apart is the shell material and connection layout.
Carbon steel accumulation tank
A standard solution with an insulated carbon steel shell, widely used in central heating systems.
- Economical solution
- Central heating lines
- Wide range of volumes
Stainless steel accumulation tank
Supplied with a corrosion-resistant stainless steel shell for projects where domestic water quality is critical.
- Hygienic storage
- Corrosion resistance
- Hotel/hospital projects
Multi-port accumulation tank
A multi-port model that lets several sources, such as a boiler, solar energy and waste heat, be connected to the same tank.
- Multiple heat sources
- Solar-compatible
- Energy efficiency
Selection criteria
What data determines the right accumulation tank?
Selection cannot be made without the first two items. The rest determine the shell material and fittings.
ParameterWhy it mattersWhat we need from you
Volume
Calculated from the gap between the consumption peak and the heat source's capacity.
L
Number and type of heat sources
Whether a single source, or multiple sources such as boiler + solar energy, will feed it.
1 / multiple sources
Shell material
Stainless steel if domestic water quality is required, otherwise carbon steel is enough.
Carbon steel / stainless
Operating pressure
Must match the system supply pressure.
bar
Insulation thickness
Determined by the heat loss tolerance.
mm
Connection size and installation location
Inlet/outlet ports and the boiler room layout.
DN size + installation clearance
For a quote, having the following is enough
It's fine if you don't have all of it. We'll fill in the gaps together with you.
Create a quote request- Consumption peak and heat source capacity
- Number/type of heat sources
- Shell material preference (carbon steel/stainless)
- Operating pressure
- Installation location and existing installation sizes
- The existing tank's nameplate data (if replacing one)
FAQ
Questions from the field
The questions we hear most often when quoting accumulation tanks.
What is the difference between an accumulation tank and a calorifier?
A calorifier usually heats and stores domestic water through a coil; an accumulation tank instead stores the heating circuit's water directly and backs up the heat source during consumption peaks.
How is volume calculated?
It is calculated from the gap between demand at the consumption peak and the heat source's production capacity at that moment; too little volume causes a capacity shortfall at peak hours.
Is it compatible with a solar energy system?
Yes, multi-port models can combine solar collectors and a backup heat source in the same tank.
Should I choose stainless steel or carbon steel?
If the tank only stores heating-circuit water (a closed circuit), carbon steel is enough; if domestic water is stored directly, stainless steel should be chosen.
Do you only serve Istanbul?
No. While our office is on Istanbul's Anatolian side (Ataşehir), we supply and ship across Istanbul's European side, the surrounding provinces and the Marmara region, and Turkey as a whole — covering your equipment end to end, from a single source.
Next step
Let's clarify your needs together
Share your consumption peak needs and the number of heat sources, and let's determine the right accumulation tank for your system together.
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