A Bosch Solar Hot Water System is a 'thermosiphon' solar syatem with the storage tank and solar collectors both mounted on the roof. this system's design eliminates the need for a solar pump and is suitable for all types of typical indian climates.
Type 1 C/2 C 1 C/2 C
System Output 123L 250 L
Number of Collectors 1 2
Tank Capiacity 125 250
Overall System Dimension 1,100 *N2.500 * 1,350 2,050*2.650*1,425
Average Output Temprature 60 60
Resistance to Windspeed upto 129 Kmph upto 129 Kmph
Resistance to Snowload 8.53 kN/Collector 8.53 kN/Collector
Overall Dimension 480 * 1,190 480 * 1,190
Weight (empty-filled)Kg 22-195/ 30-210  22-195/ 30-210 
Ineer Tank Material SS/ MS/ Enamel  SS/ MS/ Enamel 
Insulation CFC free PUF insulation  CFC free PUF insulation 
Insulation Thickness 50 mm all round 50 mm all round
Max Operating Pressure 0.5 bar for TSS system 0.5 bar for TSS system
Intel & Outlet Connections 3/4" BSP external threads 3/4" BSP external threads
Accessories Sacrificial Anode Sacrificial Anode
Provision for Electric Backup 1 1/4" BSP connection 1 1/4" BSP connection
Outer Dimensions (LxBxH) 1,032 x 2,026 x 96 (mm)
Gross Area 2.09sq.m
Absorber Area  1.88sq.m
Back Insulation Rockwool, 48 kg/m3 Density
Collector cover Toughened Glass/ Solar Glass 3.2 mm Thick
Glass Transmissivity 91 +/- 2%
Max Operating Pressure 6 bar
Zero loss Efficiency 0.7
Overall Heat Loss <= 3.3 W/m2 oC
Max Stagnation temp 170 oC