Immersion tank HR and HRS
A great advantage of the immersion tank is the use of the full power of the boiler with higher efficiency. The immersion tank is welded by a robotic welding machine which extends its service life. Using an immersion tank increases the life of the boiler and chimney. This will consume less fuel when used and reduce acid and tar formation during combustion. You can choose tanks with a volume of 445 – 1800 liters which are with a built-in internal enamed reservoir with a volume of 160 liters.
Immersion tank HR
addition to the water tank, this type also has a built-in DHW tank

Immersion tank ATTACK HR
Immersion tank HRS
This type has a built-in DHW tank with one heat exchanger for connecting a solar panel or heat pump

Immersion tank ATTACK HRS
Accumulation tank with storage tank and ways of heating
The accumulation tank can be combined with various heating devices (storage electricity, solar devices or heat pumps) and also with radiators and underfloor heating.

Connection of accumulation tank in heating system
Thermal insulation
Each standard ATTACK AK and AS accumulation tank is also supplied with a soft removable insulating layer to better keep your storage tank warm. Insulation with a thickness of 100 mm of polyester fibers with imitation leather cover is installed on tank.
More effecitve combustion with biomass boilers
For protecting boilers DPX, DPX Combi Pellet, SLX, SLX Combi Pellet, Pellet30 Automatic Plus against damage and ensuring its long life-time we recommend to install the accumulation tank in combination with the mixing device Oventrop. For regular service it is very important to buy the boiler in the country you live in.

Boilers for biomass
Immersion tanks
ATTACK HR a ATTACK HRS
Key
1 – Immersion tanks – 1 ½”
2 – Freely available – 1 ½”
3 – Electric heating coil (EL) – 1 ½”
4 – Freely available – 1 ½”
5 – Heating circuit return – 1 ½”
6 – Riser heating circuit (radiators) – 1 ½”
7 – Riser heating circuit (floor) – 1 ½”
8 – Return gas, oil and pellet boiler – 1 ½”
9 – Return wood boiler – 1 ½”
10 – Sensor of solar system or heating – ½”
AS – Solar system riser – 1″
RS – Solar system return – 1″
D1 – Diameter without insulation
D2 – Diameter with insulation
CN – Diameter with insulation – ¾”
AF – Cold drinking water – ¾”
AC – Domestic hot water – ¾”
MA – Magnesium anode