HRSS

For oil, gas, solid fuel, and heat pumps

Sizes and Availability

2 sizes · 2 Insulation

As of Oct 28, 2026

0 of 4 combinations available for immediate delivery Only items available for immediate delivery

Size	Tank without insulation	Ecoline Vlies silver	Ecoline Vlies white
750	750, Tanks without insulation: Diameter 790 mm Weight 205 kg Item No. 162750 Delivery time: approx. 2–3 weeks	750, Ecoline Vlies silver: Efficiency Class C 133 W Item No. 840299 Delivery time: approx. 2–3 weeks	750, Ecoline Vlies white: Efficiency Class C 133 W Item No. 840300 Delivery time: approx. 2–3 weeks
1000	1000, Tanks without insulation: Diameter 790 mm Weight 225 kg Item No. 1621000 Delivery time: approx. 2–3 weeks	1000, Ecoline Vlies silver: Efficiency Class C 142 W Item No. 840302 Delivery time: approx. 2–3 weeks	1000, Ecoline Vlies white: Efficiency Class C 142 W Item No. 840303 Delivery time: approx. 2–3 weeks

The domestic water tank can be used as a supplementary storage tank for oil, gas, solid fuel, heat pumps, and similar systems.

Insulation option (must be ordered separately): We recommend this type of tank only with certain reservations when used in conjunction with a heat pump! This is because the “low” flow temperature of the heat pump (usually 50–55°C) can lead to limitations in hot water comfort. We recommend our EHSWP tank, which was developed specifically for heat pumps!
with a smooth-tube heat exchanger
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)