Enameled Potable Water Tanks
HDWPU 400 · silver
Efficiency Class C
HDWPU 400 · Enameled Combi Tanks, Type 400
Item No. 171400
- heat loss
- 77 W
- Standby loss
- – kWh/24 h
- ErP Volume
- 370
- Weight
- 140 kg
Tank 171400 Delivery time: approx. 6–8 weeks
As of Oct 28, 2026
EAN 4250659509645
Dimensions and weights
- Ø with insulation
- 700 mm
- Height including insulation
- 1,695 mm
- tilt height
- 1,860 mm
- Weight
- 140 kg
- Insulation thickness
- 50 mm
Connections
No connections have been specified for this tank yet.
Technical Specifications
Volume
- nominal capacity
- 400
- Nominal capacity of buffer tank
- 100
- Nominal capacity
- 300
heat exchanger
- Heat exchanger Bottom Surface
- 3.2 m²
- WT Content at the bottom
- 18.8
- Performance metric below
- 3
- Key performance indicator above
- 10
- Heat exchanger Pressure drop at the bottom
- 32 mbar
- Operating pressure of storage tanks
- 10 bar
- Max. Pressure heat exchanger
- 10 bar
- Operating pressure of buffer tanks
- 3 bar
insulation
- Insulation thickness of the jacket (assembled)
- 50 mm
- Insulation color
- silver
Energy (ErP)
- ErP Class
- C
- ErP - Heat loss (W)
- 77 W
- ErP - Contents
- 370
Miscellaneous
- Bottom flange
- 115/180 mm
specification text
The HDWPU is a vertical, indirectly heated, high-performance heat pump domestic hot water storage tank that is enameled inside in accordance with DIN 4753. It is mounted on top of a buffer tank within a housing for space-saving solutions; the interior of the buffer tank is left unenameled.
Suitable for high-capacity heat pumps, solid-fuel and oil-fired boilers, solar thermal systems, and gas or electric instantaneous water heaters. Buffer tank for heat pumps for de-icing and as a hydraulic separator.
- Nominal capacity
- 400 L
- Operating pressure of storage tanks
- 10 bar
- Nominal capacity
- 300 L
- Operating pressure of buffer tanks
- 3 bar
- Nominal capacity of buffer tank
- 100 L
- Min. operating pressure of the storage tank
- 0 bar
- Max. operating temperature
- 95°C
- Min. temperature
- 20 °C
- (with dew point monitoring at 16°C)
- 50 mm rigid PU foam insulation
- Insulation color
- Silver
- ErP Class
- C
- ErP - Heat loss (W)
- 77 W
- Heat exchanger Bottom Surface
- 3.2 m²
- WT Content at the bottom
- 18.8 L
- Heat exchanger Pressure drop at the bottom
- 32 mbar
- Max. Pressure heat exchanger
- 10 bar
- Bottom flange
- 115/180
- Maximum immersion depth
- 440 mm
Dimensions with insulation
- 700 x 1695 (Ø x H) mm
- Manufacturer
- Juratherm GmbH
- Match Code
- HDWPU 400 silver
- Weight
- ~140 kg
- Tilt height
- 1860 mm
- EAN13
- 4250659509645