Non-stick coating created by melting special glass material in an automatic furnace at a very high temperature (around 850°C).Glass Lining’ is an internationally renowned technology in solar water heating systems to help provide clean hot water.

·         Gives clean and hygienic water

·         Ensures no particles stick, bond or react with the tank

·         High quality international standard glass coating keeps the tank free of rust and corrosion

·         Makes the system suitable for all kinds of water

·         No scaling or dirt deposits occur inside the tank

·         Since glass is a good insulator of heat, water remains hot for longer


Product Description:

·         Solar Water Heating (SWH) is the conversion of sunlight into renewable energy for water heating using a solar thermal collector.

·         Solar water heating systems comprise various technologies that are used worldwide increasingly.

·         In a “close-coupled” SWH system the storage tank is horizontally mounted immediately above the solar collectors on the roof.

·         No pumping is required as the hot water naturally rises into the tank through thermo siphon flow.

·         In a “pump-circulated” system the storage tank is ground- or floor-mounted and is below the level of the collectors; a circulating pump moves water or heat transfer fluid between the tank and the collectors.

·         SWH systems are designed to deliver hot water for most of the year.

·         In winter there sometimes may not be sufficient solar heat gain to deliver sufficient hot water.

·         Evacuated tubes, heart of the system, are made up of borosilicate glass coated with AL-N/AL using sputtering technique.

·         This is world’s latest innovative technique of black coating to achieve highest efficiency.

·         Evacuated tube collectors (ETC) are the most efficient (conversion efficiency of over 90%).

·         The collectors are usually made of parallel rows of transparent glass tubes.

·         Each tube contains a glass outer tube and inner glass or metal tube attached to a fin as the absorber.

·         Air is removed, or evacuated, from the space between the two tubes to form a vacuum, which eliminates conductive and convective heat loss.


Technical Specifications:



Stainless Steel /GRP/Boiler grade steel


Cylindrical – horizontally assembled


Ø460, Length 2285


P U F.40-50mm

Outer Cladding

Pre coated galvanized Slab/Aluminum

Outer Finishing

Pure Polyester Powder Coating finish

Outer Finish Color

Golden Yellow & Black combination

Back up Heater

2 KW With thermostat control 230V AC

Tank Supports

Fabricated Stainless steel

Tank Testing

Factory pressure tested for normal systems is at 1 Kg/cm²

Normal Working pressure of the system

Less than 0.3 Kg/cm²

Number of Tubes

60 No’s

Evacuated Tube Dimensions

Outer Diameter – 47±, Inner Diameter- 37±

Total Tube length


Type of tube selective coating

Graded Al-N with Copper under Coating

Configuration of Glass Tubes

Two Concentric Borosilicate Glass Tubes

Solar absorbance


Solar Emmitance. (at 80°C)


Evacuation between Outer & Inner Tubes

5×10-3 Pa

Rated Pressure

0.1. Mpa. (1.Kg/Cm²)

Stagnation Temperature



Model Number: SWH-GL-BS-500L


·         System – 5 years



·         Residential Apartments

·         Duplexes

·         Bungalows

·         Row Houses

·         Guest Houses

·         Hotels

·         Resorts

·         Offices

·         Commercial Sector


·         Installation & Plumbing charges extra per site

·         Solar Products are Tax free

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500 Liter ETC Solar Water Heating Solution

  • Product Code: SWH-GL-BS-500L
  • Availability: In Stock
  • £0.00

Tags: 500 Liter ETC Solar Water Heating Solution