Pre-heated Solar Water Heater with copper coil inside
    Pre-heated solar water heater with copper coil inside,heating transfer is much more efficient,only use water which is inside the copper coil,effiency is twice or more than normal compact non-pressure solar water heater.

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    Pre-heated solar water heater with copper coil inside

    System capacity

    100 liters-500 liters

    Outer tank

    SUS201-BA/SUS304-2B/SUS304 Hairline Color coated steel  <0.30mm-0.40mm>

    Inner tank

    Food grade SUS304-2B stainless steel <0.30mm-0.50mm>

    Copper Coil

    12MM Diameter,0.8MM thickness,15--30M Length


    40KG/CBM High density polyurthane foam<thickness 50/55/60mm>


    Galvanized steel with high quality spray painting <1.2 mm- 1.5mm>

    Solar Vacuum Tube

    Specification: 47x1500mm, 47*1800mm,58x1800mm,58*2100mm,70*2100mm

    Thickness 1.6mm borosilicate 3.3 glass

    AL-N-AL coating, absorption rate 0.93-0.96 (AM 1.5)

    SS-CU-ALN/ALN coating, absorption rate ≥0.96 (AM 1.5)

    Vacuum tightness P< 0.005Pa

    Idle sunning property parameter Y=260-300 m².°c/KW

    Tube Holder

    White/Black Color, adjustable or normal one, basing on your choice


    Auto pulse welding or Auto argon arc welding

    Holes design of tank

    Air vent, overflow, inlet, output, sensor and electric heater (or OEM basing on customer request)

    Inlet/Output Pipe

    3/4 inch,10/20/30CM Length

    Air Vent Pipe

    1/2 inch, 10/20/30CM Length

    Magnesium Rod Hole

    1/2 inch,3/4 inch, OEM Basing on customer request

    Electrical Backup Hole

    47MM Diameter

    Optional accessories

    Auxiliary electric heater 1.5/2.0/2.5KW

    Assistant tank 3/5/8/10/12/40/50 liters

    Intelligent controller

    Magnesium rod

    1) Reliable and efficient twin-glass solar tubes;

    2) Copper heat pipes for rapid heat transfer;

    3) Easy plug-in installation;

    4) Free maintenance;

    5) Suitable for mains pressure water (up to 1.0 bar);

    6) Corrosion resistant silver brazed copper header;

    7) Aluminum frame;

    8) Stable solar conversion during the day;

    9) High purity copper for the heat exchanger coil


    Trade Items Of Product 


    T/T,L/C,West Union


    1 Set




    Standard carton for whole container products

    Wooden Box Package for sample order


    7 days after deposit received.

    Supply Ability

    100000  Sets / Year

    Our Service

    1.) Inquiry Response: Your Inquiry will be replied within 24 Hours

    2.) Sample Order:3--7 Days for sample order

    3.)Can do OEM Basing on your detailed Request


    1- What is your Delivery Time?

       LCL order/Sample order:  3--7days.

       Full container order:7-10days.

    2- What is your Guarantee Time? 

      3 years.

    3- Can you accept OEM ? 

      YES, will do OEM Basing on all your detailed requirements.

    4- What is your Payment Term?

      We accept T/T,Escrow & West Union

    5-What is your MOQ?

      1 set

    6-What is your Packing?

      LCL order/Sample order in wooden box Package

      Full container order in Standard quality export carton with PE Foam Protection

    7-What is your FOB Port?

      We accept FOB Shanghai & Ningbo

    8.-What is your Monthly Production Capacity?

      1000 sets

    9-What is your Shipping Term?

      By Sea/Air/Rail

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