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HDW cutaway view, insulation in silver

HDW

heat pump tank

  • Enameled Potable Water Tanks
  • For heat pumps
  • 6 sizes
Volume
200–1,000
operating pressure
10 bar
Submit a request Data Sheet (PDF)

Sizes and Availability

6 sizes

As of Oct 28, 2026

Insulated at the factory

SizeImplementationItem No.Efficiency Classheat lossAvailability
200 silver 167200 B 54 W Delivery time: approx. 4–6 weeks
300 silver 167300 B 67 W Delivery time: approx. 4–6 weeks
400 silver 167400 B 75 W Delivery time: approx. 4–6 weeks
500 silver 167500 B 79 W Delivery time: approx. 4–6 weeks

With or without assembled insulation

  • Efficiency Class
  • Heat loss in W
  • Click a cell to open the item; use the arrow keys to move through the table.
1 of 2 combinations available for immediate delivery
Size Tank without insulation Ecoline Vlies silver
750 750, Tanks without insulation: Diameter 790 mm Weight 275 kg Item No. 167750 Delivery time: approx. 3–4 weeks 750, Ecoline Vlies silver: Efficiency Class C 133 W Item No. 840329 Delivery time: approx. 3–4 weeks
1000 1000, Tanks without insulation: Diameter 790 mm Weight 335 kg Item No. 1671000 In stock 1000, Ecoline Vlies silver: Efficiency Class C 142 W Item No. 840330 Available immediately

Size 750

Size 1000

Description

The HDW heat pump tank is equipped with a particularly large heating surface and is therefore suitable for high heat pump capacities. It can, of course, also be used as a supplementary storage tank for oil, gas, solid fuels, and the like.

Features

  • Insulation: Up to Type 500: 75 mm PUR rigid foam (directly foamed)
  • With a double-wound smooth-tube heat exchanger (1-inch tube)
  • Highest build quality
  • High-quality S275JR steel in accordance with EN 10025, manufactured in accordance with EN 12897:2006
  • Enameled in accordance with DIN 4753
  • Operating pressure: 10 bar
  • Test pressure: 16 bar
  • Maximum operating temperature: 95°C
  • Up to a 5-year warranty (with proof of maintenance)

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