Double Wall Thermosiphon Storage
Tank Type SUNsilver®

BWS IIS200 item no. 500370
BWS IIS300 item no. 500371

A good insulation is guaranteed by a CFC-free polyurethane foam, which the entire storage tank is surrounded by.
The outer metal coating protects the storage tank perfectly against mechanical damaging.
These horizontal thermosiphon storage tanks are the perfect supplement to our economic
SUNsilver®System for solar heat exchange without needing a pump and a controller.

The storage tanks are made of steel and have two heat exchangers:

• On the outside a double wall which is ideal for the use of heat exchangers in a thermosiphon system.
• From the inside a steel pipe cluster for backup heating over the existing heating system.

Model	Capacity in liters	Permitted positive operating pressure in bar	Outer diameter including Insulation in mm	Length excluding connection piece in mm	Length including connection piece in mm	Weight kg
BWS IIS200	200	6	651	1.725	1.284	93
BWS IIS300	300	6	693	1.960	1.434	125