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Quick Details

  • Type: Evacuated Tube
  • Pressure: Unpressurized
  • Circulation Type: Direct / Open Loop (Active)
  • Heating System: Thermosyphon (Passive)
  • Connection Type: Direct-Plug
  • Installation: Freestanding
  • Housing Material: Colorful galvanized steel
  • Certification: CE, RoHS, CCC/ ISO9001-2008/ SRCC
  • Capacity: 150
  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: JIAJIARE
  • Model Number: NPV-GS-15
  • Outer tank: Galvanized steel 0.31mm
  • Inner tank: Food grade SUS 304-2B 0.41mm
  • Vacumn tube: Borosilicate 3.3 glass with Cu/Ss/Aln coating
  • Frame: Galvanized steel 1.4mm
  • Insulation: High density polyurethane 50mm
  • Electrical heater: 1500W
  • Mg bar: Screwed type or direct-plug type optional
  • Controller: 220V/230V optional

Packaging & Delivery

Packaging Details EXPORT CARTON for Full Container Load,
WOODEN CASE for Less Container Load (For fragile parts)
Delivery Time Shipped in 15 days after payment

Top Sale  Low Pressurized Solar Water Heater 100L 200L 300L 400L


Product Description

1. Technical Data


Outer tank

 Stainless steel 201, 0.40mm thickness

Inner tank

 Food grade SUS304-2B, 0.40mm thickness

Tank insulating layer

 Imported polyurethane, 50mm thickness 

Heat preservation time


Inlet and outlet hole

 Male 3/4”

Tank size

 Ø360mm/ Ø460


 Argon arc welding

Max. operating pressure

 0.1 Mpa


Material of Vacuumm Tube

 Borosilicate glass 3.3 glass

Transmission of the cover tube

 92% (MS)

Outer Tube Size

 58 mm *1800 mm

Inner Tube Size

 47 mm *1700 mm

Solar absorptance 

 93%-96% (MS)

Hemispherical emittance 

 <6% (MS)

Surface treatment


Hail resistance 


Sealing gasket




 Stainless steel 201 with 1.3mm thickness

Bracket angle

 0-45º is available

Fastening pieces

 Stainless steel/ 8mm diameter

Tube holder


Optional Accessories for System

1)   Assistant tank, automatically feed tap water into storage tank to keep it sufficient always

2)  Electrical heater, an auxiliary heating element in case of rainy, cloudy or snowy days, so as to ensure a continous hot water supply

3)  Magnesium rod,  an essetial element to decrease the scaling of water tank

4)  Intelligent controller, automatically controls water filling and startup of auxiliary heating element, 

5)  Booster Pump, a choice for those area without tap water or with a unstable water supply

2. Product Model


3.  Low pressure solar water heater working principle

-Solar riadiation is absorbed by the selective coating of solar vacuum tube, it changes solar energy into heat energy; 

-Cold water flows in vacuum tube and absorbs the heat energy, as time goes by, it becomes hotter and hotter;

-As water temperature rises up, water density decreases, so hot water floats up and cold water floats in to replace void.

-Through this circulation, the cold water in the water tank will be gradually heated.

4.  Features

-Simple structure and easy installation 

-Automatic water feeding with assistant tank, if not, we should controll the water feeding by hand             

-Withstands water pressure no more than 0.1MPa             

-Electric heater can be used as back up in rainy days


5.  Advantages of our product: 

Inner tank: Non-welding technology of tank cover:

Decrease the welding damage to original material, increase system lifespan, no worry about leakage

Outer tank: A plastic film covering on the plate before packing. Prevent scratching and keep it with a nice appearence.

Insulation Layer: Germany-imported polyurethane integrated foam-forming with twice slaking treatment. Preserves hot water constantly as long as 70~80 hours.

Supporting Bracket: Electrostatic spray & Automotive paint galvanized steel plate

Good weight bearing and wind resistance(140 km/hr), super mechanical performance and corrosion resistance ensures a long life to ocean coast, easy installation, universal bracket suitable for either flat or slope roof installation.

Packaging & Shipping


Export-standard carton for container:

Wooden box for less than 5 sets sample:


For Sample(Less than 10 sets): 7 working days

For 20 feet container: 15 working days

For 40 feet container/ 40HQ container: 20 Working days  

Company Information

Factory Full View

-Founded in 1995 and specializes in solar application technology, we develops with the researching, production and industrialization enterprise distribution for more than 20 years.

-The Jiajiare solar water heater is the leading product of our company,it is green and safe.And this is also a type of product that our country do its utmost to recommend.

-The company regards best quality as the vitality.

-Exported to Europe, America, Southeast Asia,Middle East etc, we attend the exhibition in different countries.

-Our company also receive many certifications,such as CE, CCC, SOLAR KEYMARK, ROHS, SRCC, EN12975/12976, ISO9001-2008 etc.



-Can you provide FREE SAMPLES?

As solar water heater system is a large product, including the product value and shipping cost, it is really a high investment, so we can not provide it free, hope for your understand.

-Can you accept OED/ODM?

Yes, of course.we are professional solar water heater manufacturer with our own brand, also providing OEM service for many famous brand, you can send us your requirements and logo designing.

-What is your GUARANTEE TIME?

It differs with different configuration. For our standard, 10 years for vacuum tubes,6 years for heat pipes, 3 years for brackets and water tank,1 year for other parts.

-What is your PAYMENT TERM?

For container: T/T 30% in advance, 70% balance before shippment  or L/C:100%, Western Uion.

For sample: Usually 100% T/T inadvance, also can be  negotiatory.

-Do you have other ADDITIONAL SERVICE?

YES. We provide free spares according to your oder,such as vacuum tubes,tube holders,dust rings, seal rings,screws etc. Also, we can provide logo design free if you have an order at least 20 feet container.


Our Services

1) Free sample service: One or two samples below 100L  will be free to our clients.

                            Terms: Clients pay the samples first, we will cut the samples value in the next order.


2) OEM service: We are professional solar water heater manufacturer, we provide the free OEM  for the container quantity clients, no matte 20 feet  container or 40HQ container.


3) After service:

  • Tech support:we will provide all the tech support ,including the install manual,  the advertisement, the repairments and selling.
  • Refunding and exchanging: we will provide the free refund and exchange for the broken products in the warranty.but we will make some evaluation before we make the complement.
  • Anual visit: we will make a viist to our client to have a local visit and meeting to make our business better.
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