A-SUN 15/20/24/30 Tubes Pre-heated unpressurized stainless steel solar water heater system

Group Pre-heating solar water heater
Min. Order 1 set
Terms of Payment L/C, Western Union, T/T
Update Time 2018-09-20
Item specifics
Warranty time3 Years
Deliver Time5-15 working days
BrandA-sun,OEM &ODM are acceptable
Life time15 years
MaterialZinc coating steel or Stainless steel
Capacity100 - 360 liter
Trade TermFOB,CNF &CIF
  • Description
  • Product review

Pre-heating  Solar water heater 


Installation Video 



Prouduct  Description

  Feature  1. the cooper coil inside of the non-pressure tank can bear the pressure 0.7 Mpa during the operation.

 2. there is feeder tank which can load the water automatically.

 3. the vacuum tube heat the water and supply hot water to the tank, then the water in the copper coil can be heated by the hot water in the water tank.

 4. it is pre-heating and heat exchange process.

 5. only if the water in the tank is hot, more hot water will be got and exceed the capacity limit of the water tank.

 6. clean hot water from the copper coil.

  7. you can use the hot water inside of the copper coil or the hot water in the tank.

ModelPre-heating  solar water heater 
Inner tank

SUS304-2B 0.40mm-0.5mm,applies tig welding, the most advanced technology from South Korea.Inner tank is

 produced with longitudinal welding,which anti-leakage and anti-rust for more using life 

Bath application2-10 people
Outer tankZinc steel painted plate or stainless steel plate ,anti-corrision and anti-oxidation
Insulation layerImported PU layer 50-55mm with computer foaming,with 24 hours ripening process,and heat insulation material ACIR

Upper air vent hole,side prepared hole,side temperature sensor hole,lower inlet,electrical heater hole,diameter 

of water tank is 460/470/480mm


Zinc steel painted plate with width 10cm and thickness1.5mm,or stainless steel with width 10cm and thicknes

s 1.2mm,angle 27/38/45,which defend against typhoon

Vacuum tubeThree target vacuum tube,with CU/SS-ALN coating film have high performance of absorb and low reflection ratio.
FastenerStainless steel screw
Silicon ringHigh polymer silicon rubber

Heating absorption


Copper Coil Diameter 12mm ×25-30M


Product Detail



Production Step



Technical Advantage