Buffer tank with 2 steel and 1 stainless steel heat exchanger, 500 liter Sunsystem. The inox pipe is used to heat domestic hot water with a fresh water module

Kombi buffer with 3 heat exchangers

Buffer tank volume: 500 liters
Diameter without insulation: 650 mm
Its diameter with insulation is 850 mm
Height: 1700/1750 mm
Weight: 172 kg
Surface of the stainless heat exchanger: 5.06 m2
Volume of the fresh water module: 20l
Continuously removable DHW 10/45C, with buffer temperature of 65C: 1840l/h
Continuously removable DHW 10/38C, with buffer temperature of 65C: 2300l/h
S1 heat exchanger surface: 1.6 m²
S1 heat exchanger volume: 9.8 l
S2 heat exchanger surface: 1.1 m² 

S2 heat exchanger volume: 6.6 l
Operating pressure of the buffer tank: 3 bar
Operating pressure of the heat exchangers: 6 bar
Maximum water temperature: 95C
Size of the pipe sockets:
1" and 6/4"s couplings for boiler and heating system
1/2"-sockets for connecting thermometers and sensor sleeves.

More information:

Buffer tank with 1 inox and 2 steel heat exchangers

Production time: 1-3 months from order.

The inox heat exchanger is heated by the warm water in the tank.
This ribbed stainless steel tube has a particularly large surface area so that it can heat even fast-flowing water .
In the buffer tank itself, it stores the water that circulates in your heating system and which, e.g. the boiler heats you up.
You can connect the solar collector, boiler or heat pump to the lower heat exchanger.
It is therefore necessary to connect the solar collector or the heat pump system with a heat exchanger , because it is a different liquid, e.g. antifreeze can circulate.
Each tank has a 6/4" connection into which an electric heater can be installed (from 2kW to 9kW) and is used to heat half of the volume of the tank.
If the domestic hot water itself, i.e. from the tap you want to heat running hot water in the tank itself and do not want to use the hot water for heating, choose an indirect storage tank with a heat exchanger, a boiler, they they are enamelled, so they are clean, drinking water remains in them!

Technical data in details!