flat panel solar water heater Certificate: SRCC, Solar Keymark, CE and ISO9001 flat panel solar ... installed on the roof, wall, garden to face most of sun light. The storage water tank can be put anywhere as ... can be combined with gas boiler, oil boiler or electic heater.Size: 150L, 200L, 250L, 300L, 400L, 500L with single ... sunshine condit integrated pressure blue titanium flat panel solar water heater