OEM Compact Non-pressure Solar Water Heater for household

FOB Price:USD 110.0-150.0/Set Get Latest Price
Minimum Order:1
Brand Name:JN
Brief Description:This type of solar water heater is high efficiency and no-pressure,which has low price but high quality mainly used for hotel,hospital and household.

Justin Zhou

  • Product Details

Basic Specification

Outer tankStainless steel
Inner tankstainless steel
Vacuum tubeThree target vacuum tube
BracketStainless steel/Aluminum alloy
Circulation TypeDirect Loop
With Accessories or NotYes
Body MaterialsOthers, Stainless Steel
Current TypeDC
TypeNon Pressure
InstallationFloor Stand
Heating SystemThermosyphon
CertificationCE, GS, ISO, Other, solar key-mark

Detail Description

300L Compact  No-pressure Solar Water Hater



1.Product details

Inner tank:Stainless steel SUS304,0.4-0.5mm

Outer tank:Stainless steel,0.4-0.5mm

Vacuum tube:Three target ;58*1800

Bracket:Galvanized Steel/Aluminum Alloy/Stainless Steel


Optional spare parts:Electric heater,magnesium rod,assistant tank,reflector

2.Parameter list

JNQG Serious Solar Water Heater    
 (compact non-pressure solar water heater)    
Model-capacity-tubesTube SpecificationLoading Qty(sets)20GP/40GP/40HQ
JNQG-150L-15 58*1800mm 43/96/119 
JNQG-180L-18 58*1800mm 36/79/98 
JNQG-200L-20 58*1800mm 32/71/88 
JNQG-240L-24 58*1800mm 32/61/76 
JNQG-300L-30 58*1800mm 23/51/63 
JNQG-360L-36 58*1800mm 19/42/52 
Three target vacuum performance and specification
Tube strucureAll glass double deck co-axial structure
Glass mateialBorosilicate 3.3glass
Outer tube diameter and glass thicknessØ47±0.7mm;Glass thickness 1.6±0.15mm
Ø58±0.7mm;Glass thickness 1.6±0.16mm
Ø70±0.7mm;Glass thickness 1.6±0.17mm
Inner tube diametet and glass thicknessØ37±0.7mm;Glass thickness 1.6±0.18mm
Ø47±0.7mm;Glass thickness 1.6±0.19mm
Ø58±0.7mm;Glass thickness 1.6±0.20mm
Tube length(mm)1,200,150,016,001,800,000,000,000,000
Coating materialCU/SS-ALN(H)/SS-ALN(L)/ALN
Sediment methodThree targrt magnetron sputering plating
Emission ratioε=0.04-0.06(80℃±5℃)
Vacuum degreep≤5.0X10-3(PA)
Transimittance of glass tubeT≥0.89
Stagnation paremeterY≥200/KW
Average heat lossULT:0.4-0.6W/(㎡*℃)
Hail resistance25mm

2.Working principle

Solar radiation is absorbed by the outer of vacuum tube,film-coating will transmit the heat to the water inside the tube.The temperature of water in the tube will rise after decalescence,forming a kind of upward power,and at the same time,composing thermosiphon system.Hot water will move up and be stored in the top of the tank,and  cold water continue supplement to finish circulation,in order to ensure all the water up to the prescriptive temperature.



Jianeng has attained the evaluation of ISO9001 certification and our products have attained CCC,CE ,Solar Keymark and SGS certifications. Moreover, our products were classified as qualified products by State Solar Water Heater Quality Supervision and Inspection Center (based in Beijing). Our company has established powerful distribution and service network across the country and ensures timely and satisfying after-sales service. Since our products are presented in the market, they have been preferred by our customers.


  • It is one of the most common used solar water heating system for household,hotel,hospital and project application,etc.
  • It has simple sructure and working principle but is the most economical.
  • It is easy to be installed on the roof to get enough water floe pressure,because the compact system is non-pressurized,water flow depending on gravity water head.
  • this system matched with vacuum tube solar collection.Water flow inside and complete a circulation on it own without given pressure.

5.Company profile

Haining Jianeng Solar Energy Industry Co., Ltd. (Jianeng) is a company integrating the research and development, manufacturing, sales, and service of solar water heaters. Jianeng always persists in managerial philosophy of "customer-focused and market-oriented", and objective of "technological innovation driving industrial development". Based on local, facing the nation and the outside world, our company is striving to provide superior products and excellent services to our customer worldwide.

6.Export information

Target Market(s)Oceania; Eastern Europe; Africa(except Middle East); Hong Kong/ Macao/ Taiwan; Latin America; Japan & Korea; Mainland China; Western & Southern Europe; Northern Europe; Central & Southern Asia; Middle East
Export Percentage61% - 70%
Delivery Time10 Day(s)
Minimum Order Quantity1SET
Payment TermsL/C, T/T


7.Productivity Information

Production Lines11 lines
Factory Size18,465 square meters
Monthly Capacity6000SET
Investment on Manufacturing EquipmentsUS$501 Thousand - US$1 Million
No. of Staffs11 - 50 People
No. of R/D Staffs11 - 20 People
No. of Engineers5 - 10 People
No. of QC Staffs11 - 20 People

Additional Information

Payment TermsL/C, T/T
Minimum Order1
Lead Time / Delivery Time15 Day(s)
Sample AvailableYES Ask For Sample
FOB PortNingbo,Shanghai,
Target Market(s)North America, Oceania, Southeast Asia, Eastern Europe, Africa(except Middle East), Hong Kong/ Macao/ Taiwan, Latin America, Japan & Korea, Middle East & South Asia, Mainland China, Western & Southern Europe, Northern Europe, Central & Southern Asia, Middle East

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