Green solar products
Low pressure solar water heater
   + Stainless inner tank   
   + Porcelain enamel inner tank  
Compact & pressue solar water heater
    + Stainless inner  tank  
    + Porcelain enamel inner tank  
Pre-heating solar water heater
    + Stainless inner tank  
Split & Pressure Solar System
    +  Solar System with stainless inner tank
    +  Solar System with porcelain enamel tank
Solar collector
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     + Vacuum tube solar collector  
     + Flat panel solar collector  
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     + Solar pool heating system
     + Solar space heating system
     + Solar water heating for villa
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     + solar water heater accessories
     + solar controller
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Contact Us :

Factory in China
Tel : 86-519-85256385
Fax : 86-519-85256385
Cell : 86-13861291747
Email : timsolar@vip.163.com  
            timsolar2012@gmail.com
Contact  : Mr.Tim Liu
Site : www.greensolarchina.com

Company in Greece
Tel : 30 2310 953421
Fax : 30 2310 953422
Cell : 30 6977 353638
Email : info@green-solar.net
Site: www.green-solar.net
  

 

Low pressure solar water heater

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      Model: YS - LSA
      Name: solar heater
      Type: low pressure
      OEM: welcome
      MOQ:1 set
      Lead time:15 days
      Brand: Green solar
      Payment: DP ,L/C ,T/T
      Price term: DDP ,CIF ,FOB
Simple Product Description

Model: YS - LSA
Low pressure & compact solar water heater (Thermosiphon solar water heater)
Inner tank: Stainless steel SUS 304-2B  
Outer tank: Stainless steel SUS 304-2B  
Stand: Stainless steel
Detailed Product Description

Model: YS - LSA
Low pressure Stainless steel solar water heaters with Stainless steel stands
1) Tank:
Tank material (outer): Stainless steel SUS304-2B, Thickness:0.4mm
Tank material (inner): Stainless steel SUS304-2B, Thickness:0.4mm Optional:0.5mm
Tank volume : 100L - 250L Outer tank diameter: 420mm or 470mm  
Insulation : Polyurethane foam Thickness: 55mm p=38kg/m3, K=.0035w/mk
2) Solar Glass Vacuum Tube
Thickness: 1.6±0.1mm Optional: 2.0±0.1mm
Diameter:  58X1800 mm
Absorption percentage 91--94%
Hail Resistance: 25mm Optional: 32mm  
3) Stands : Stainless steel  Thickness : 1.2 mm; 20/30/38/45 degree angle Or OEM
4) Standard Accessories: Air Vent Valves  
5) Optional Accessories: Electric heater,Mg anode,Reflector,Auxiliary tank,Solar controller
6) Inlet/outlet Pipe: 1/2 inch Optional: 3/4 inch Stagnation temperature : 100°C
7) Heat preservation: 72 hours Average daily efficiency>50%
8) Warranty for main body : 3 years
We can install our solar heater with solar controller or auxiliary tank.
Installation with solar controller (SR500)  & Installation with auxiliary tank
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Install with SR500
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Install with Auxiliary tank
How thermosyphon solar systems work
Thermosyphon systems in their typical configuration do not have pumps and other controls. They are based on the natural convection principle: hot water rises and cold water sinks. In the case of thermosyphon systems: as the potable water (or a antifreeze fluid, in colder climates) entered into the collector it warms and rises to the top of the collector and to the tank, where it is stored (that’s the reason why tanks are always above the collector).

Thermosyphon Systems & Advantages
Thermosyphon systems are cheap, and since there are no pumps or controls they are reliable systems without technical or maintenance problems.
Relatively to the batch ICS systems, thermosyphon systems allow a much higher flexibility: since the hot water is stored in a well-insulated tank - instead of being kept in the collector itself, like in batch systems-it can be used many hours after, without the problem of nighttime losses

Thermosyphon Systems & Limitations
The big disadvantage or limitation of thermosyphon systems is that they depend deeply on air temperatures. To be more precise, they will stop working if temperatures drop below the freezing point and stay there for long. In that case the system needs to be drained or warmed. To overcome this limitation, in cold climates, some manufacturers equip their thermosyphon systems with small circulating pumps - pumps that are turned on in very cold weather conditions to move water and to prevent the one in the collector from freezing. Only in this case, thermosyphon systems are truly an all-climate solution.
Another possible disadvantage of this system – when installed on a roof – is their high weight. A tank full of water weights many gallons, and that may require the reinforcement of roof structures