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EHSWP cutaway view, insulation in silver

EHSWP

EHSWP Hygienic Stratified Combination Storage Tank – High Performance / Heat Pumps

  • hygienic tank
  • For heat pumps
  • 2 sizes · 1 Insulation
Volume
800–950
operating pressure
3 bar
Submit a request Data Sheet (PDF)

Sizes and Availability

2 sizes · 1 Insulation

As of Oct 28, 2026
  • Efficiency Class
  • Heat loss in W
  • Click a cell to open the item; use the arrow keys to move through the table.
0 of 2 combinations available for immediate delivery
Size Tank without insulation Ecoline Vlies silver
800 800, Tanks without insulation: Diameter 790 mm Weight 123.961 kg Item No. 177800 Delivery time: approx. 4–8 weeks 800, Ecoline Vlies silver: Efficiency Class C 136 W Item No. 840425 Delivery time: approx. 4–8 weeks
950 950, Tanks without insulation: Diameter 790 mm Weight 151.582 kg Item No. 177950 Delivery time: approx. 4–8 weeks 950, Ecoline Vlies silver: Efficiency Class C 144 W Item No. 840426 Delivery time: approx. 4–8 weeks Not included in the price list

Size 800

Size 950

Description

High-performance hygienic stratified storage tank with a heat exchanger

Hygienic storage tank specially developed for high draw-off rates combined with low temperature differentials. Ideally suited for heat pumps thanks to special stratification channels.

Manufactured from S235JR quality steel in accordance with EN 10025 and EC Directive 97/23/EC; exterior with rust protection, interior untreated. Hot water using the flow-through principle with a V4A 1.4404 stainless steel corrugated pipe, including a sensor terminal strip for variable positioning of the sensors

Because the water volume is limited to 30–50 liters and the “flow-through principle” is used, no precautions against Legionella risk are required in accordance with DVGW Worksheet W551.
Equipped with a sensor terminal strip for variable positioning of the sensors.

Features

  • Insulation options (to be ordered separately): Ecoline fleece insulation (Made in Germany), color: silver (standard) available from stock; colors white and anthracite available upon request (2–3 business days)
  • With a smooth-tube heat exchanger (1-inch tube)
  • With 8 special stratification channels for optimal stratification
  • Designed specifically for the high flow rates of the heat pump
  • Up to 13.5 m² of stainless steel corrugated pipe surface area
  • 2 x 2"" female thread sockets for accommodating up to two screw-in heating elements
  • Highest build quality
  • High-quality S235JR steel in accordance with EN 10025
  • Operating pressure: 3 bar
  • Test pressure: 4.5 bar
  • Operating pressure of stainless steel corrugated pipe: 6 bar
  • Maximum operating temperature: 95°C
  • Option to install a contact sensor
  • 5-year warranty

Product video

EHSWP in motion

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