Haining Yinuo Electric Co.Ltd

Solar Water Heater, Solar Collector, Solar Geyser manufacturer / supplier in China, offering Instant Solar Water Heater (Heat exchanger in cylinder), Non-Pressurized Solar Water Heater 200L (INLIGHT-E), 150L Pressurized Balcony Solar Heating System and so on.

About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home ProductsNon Pressurized Solar Water Heater

200L Open Loop Non Pressurized Solar Water Heater With Anticorrosive PVDF Coating

Good solar water heater ,Good team saves my time ,thanks

—— Nigel from Netherland

Thanks for visiting us to solve my project issue,with your expert advice,i can do the project without hesitate.

—— Lai from Malysia

I'm Online Chat Now

200L Open Loop Non Pressurized Solar Water Heater With Anticorrosive PVDF Coating

Large Image :  200L Open Loop Non Pressurized Solar Water Heater With Anticorrosive PVDF Coating

Product Details:

Place of Origin: China
Model Number: ILNP-5818G460C-20T-2

Payment & Shipping Terms:

Minimum Order Quantity: 1 Set
Price: Negotiable
Packaging Details: Cartons
Delivery Time: 10-15 working days
Payment Terms: D/P, T/T
Supply Ability: 5000units/month
Detailed Product Description
Capacity: 200L Pressure: Unpressurized
Circulation Type: Direct / Open Loop Passive Housing Material: Galvanized Steel/ PVDF
Application: Domestic Use Vacuum Tube: Three Target Absorption Layer
Installation: Free Standing

200L Open Loop Non Pressurized Solar Water Heater With Anticorrosive PVDF Coating


Description Non-pressurized solar water heater
Material of out tank 0.31-0.4mm thickness color steel/ fluorine carbon steel
Material of inner tank Food grade 0.31-0.4mm thickness SUS304 stainless steel
Tank insulating layer 55mm 45kg/m³ high-density polyurethane foamed
Inlet and outlet hole Male G 1/2, 3/4
Max pressure 0.05 Mpa
Solar collector tube 3.3 Borosilicate glass with N/Al coating
Thickness of glass tube 1.6mm
Vacuum tube tightness P≤0.005 Pa
Absorption as=0.93-0.96 (AM1.5)
Emission ratio εh=0.04-0.06 (80C±5C)
Idle sunning property parameters Y=220~260m2.C/KW
Average heat loss coefficient ULT=0.6~0.7W/(m2.C)
Bracket: 1.5mm thickness Galvanized Steel
Structure of tank: 4 holes for air vent,overflow,water inlet and outlet,electric heater
Welding: Argon arc welding
Fastening pieces: Made of stainless steel screw
Absorber area 2.26 m²
Tube quantity 200 tube 58x1,800mm
Tank capacity 200L




Non-pressure vacuum tube solar water heater is an open loop and thermosyphon system. The vacuum tube with special absorptive coating can absorb the sun energy and transfer sun energy to heat energy. Whole system works according to the thermosyphon principle. Water in vacuum tubes is heated and then rises to top of tank. Cold water in tank goes down to the vacuum tube bottom. Water in the system will be heated as circulation keeps going on. This type of solar water heater is one of the most popular systems because of its own advantages of high efficiency,cheap price,simple Installation and free maintenance




Install instruction:





Domestic hot water for shower, washing


Competitive Advantage:

1) Reliable and efficient with twin-glass solar tubes

2) Easy plug-in installation

3) Outer tank material: stainless steel plate or powder coated color steel sheet

4) Inner tank material: 0.4mm thick SUS304 food grade stainless steel plate

5) Frame material: color steel

6) Superior heat preservation ensured by 50-65mm polyurethane foam insulation layer


How to choose:
Choose the item according to the capacity, and choose the capacity according to the people quantity
in your family, one adult shower need about 50 L water. Normally,50 liters is only used for one person's shower.



Common troubles and shooting methods


Phenomena Cause Analysis Methods

Cold water on sunny day


1. There is something above water tank or dense smog or stained

2. The inlet valve fasten incompletely and cold water take the place of hot water in tank

1. Remove the hinder or install another place
2. Change inlet valve

Fail to fill water fully


  • Low pressure of running water

2. Leakage of inlet pipe
3. Leakage of water tank

1. Install a small water pump
2. Change inlet pipe
3. Replace a water tank
Leakage from the tank 1. Broken of seal or water tank installed incorrectly
2.The crack of inner tank
1. Exchange a new seal or adjust the water tank
2. Replace a water tank
Unstable water temperature Unstable pressure of running water Adding an assistant tank that can store water, stable the pressure and mix cold water or using a thermostatic valve
Failed to get hot water in winter 1. Frozen of inlet or outlet pipe
2.It's too cold
3. No insulation through pipes
1. Asking for help from supplier
2. When hot water used at night, please let water tank empty and input water next morning
3. Open the heater valve to keep worm at the coldest days


Non Pressure Type Water Heater,

Commercial Solar Water Heater

Contact Details
Haining Yinuo Electric Co.Ltd

Contact Person: Mr.Ben Chan

Send your inquiry directly to us (0 / 3000)