Copper Solar Boilers SONNE Τ 200

Hot water storage tank made entirely of pure copper CuDHP (CW024A) with Cu levels > 99,9%, certified for drinking water installations according to DIN50930-6/2001 specification.
Due to its antimicrobial properties, copper inhibits the growth of pathogenic microorganisms and bacteria, such as Legionnaires' disease, that is caused by the Legionella pneumophila bacterium.
Manufactured from 2 copper discs (2 mm thick), formed in specialized presses and electrically welded, together with a single seam on automatic machines.
Copper heat exchanger for connection to the central heating boiler.
Copper heat exchanger for connection to a solar panel array.
Top thermal efficiency, as copper transmits 7 times more heat than steel.
Thermal insulation made of ecological expanded chlorofluorocarbon-free polyurethane of 50 Kgr/m3 content, 60mm thick and with thermal conductivity coefficient 0,023 W/mK.
External casing made of Aluznic aluminium foil, prepainted in white - grey RAL 9002.
Side caps specially spliced and shaped to hold in a buttoned position with no rivets.
3,5 KW electric copper resistor, with bipolar thermostat and built-in safety thermostat.
The resistor is mounted on a specially shaped brass flange Ø140 (3 mm thick) with 8 threaded bolts, for easy replacement in case of high wear.
The flange also serves to clean the boiler.
Safety valve 1/2" - 6 bar at the cold water inlet.
Stand-by recirculation to connect the hot water returning from the building.