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Drain-Back

A simple and safe solution for installing a solar-heated water system

The stainless steel tank is the heart of this solar energy system, subject to high pressures and changes in temperature. The stainless steel used in its construction is high quality chrome-nickel (stainless steel 304) welded under argon and Tungsten Inert Gas (T.I.G). Before assembly, the convex bottoms are pickled and rendered passive in order to improve the longevity of the tank in particular its resistance to corrosion.

The stainless steel coil integrated into the tank promotes a very high efficiency of energy exchange between the domestic hot water and solar heated water circuit.

Thermal insulation and cladding

  • High density injected polyurethane foam, 60 mm depth (containing no CFCs.)
  • Exterior cladding in polypropylene plastic which offers both a high impact resistance and an attractive appearance.

Advantages of the Drain-Back tank

  • Very low system cost due to integrated design
  • Inbuilt pressure control: eliminates the need for an expansion vessel, safety valve or air vent in the solar circuit
  • Simple Installation, straight-forward connections
  • Does not require specialist skills for installation
  • High quality materials and components, including the use of high grade stainless steel
  • Efficient and ecological performance in use
 
Product (*)
Description (*)
Drain-Back 200

Integrated system to produce your domestic hot water with solar energy.
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  • Capacity (total) (L) : 200
  • Dim. - Width or Diameter (w/o conn.) (mm) : 715
  • Dim. - Depth (w/o conn.) (mm) : 661,5
  • Dim. - Height (w/o conn.) (mm) : 1602
 
Drain-Back 300

Integrated system to produce your domestic hot water with solar energy.
raccordement [ legend ]
 
  • Capacity (total) (L) : 300
  • Dim. - Width or Diameter (w/o conn.) (mm) : 828
  • Dim. - Depth (w/o conn.) (mm) : 742
  • Dim. - Height (w/o conn.) (mm) : 1584
 
(*)
  • The product range offered can vary according to country. Please consult your distributor.
  • All values indicated on this site are provided for information only. Please refer to our legal notice.
  • The following operating conditions were used to generate hot water output data for our products:
    • Supply water: 10°C
    • Primary water: 80°C (boilers), 85°C (water heaters) or 90°C (HeatMaster)
  • Operating conditions
    Cold water: 10°C
    Delta T° (outlet) : 30°C
    Data provided are indicative only. Please read the complete disclaimer.
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