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High Heating Efficiency And Insulation To Keep Water Warm Upto 72 Hours Without Sunlight With Electrical Heating Backup.
Capacity : Litres Max
Solar Tubes : Solar Vaccum Tubes Each Length And Dia
Inner Tank : Ss 304 Sheet 0.5mm Thickness
Outer Tank : Gi Alloy 0.5mm Thickness
Bracket : Gi Alloy 1.5mm Thickness
Heat Insulation : German Polyurethane 50mm
Working Pressure : 99oc
Working Pressure : 0.3mpa (3bars)

High Thermal Efficiency Using The World’s Latest, Person Proven And Tested, Evacuated Glass Tube Collections, Which Track The Sun Throughout The Day And Intercepts More Than 93% Of Incident Solar Radiation.
Requires Much Lesser Space As Compared To Conventional Water Heater.
Handles Hard Water With Ease Without Drop In Efficiency And Does Not Require Frequent Internal Cleaning.
PUF Insulated Stainless Steel Tank Ensures Hot Water Even On Winter Mornings In Domestic Models And Rock Wool In Project Type Systems.
Electrical Back-Up Also Available To Provide Heat During Rainy Days.
Corrosion Resistant Structures and Hardware.
Requires Practically No Maintenance, Long Life Of About 20 Years
Available In Various Capacities To Suit Every Need, 100/200/250/300/500/1000 Liters Per Day And Custom Built Sizes.

Circular glass tubes allow auto Sun tracking and ensures maximum heat absorption (>93%) throughout the day.
Design independent of ambient temperature, Ideal even during winters.
Non-metallic glass tubes of much larger diameter (37min) prevents choking and ensures maximum efficiency and life of the system without frequent cleaning and maintenances
Glass tubes and tanks can be cleaned manually.
Low start-up time from cold to hot in just 2 to 3 hours.
Integrated design eliminates interconnecting pipes completely.
15 evacuated glass tubes.
Both the inner tank and cladding are of SS, Inner tank is TIG welded.
Highly efficient PUF insulation for overnight retention of heat. PUF does not absorb water and has absolutely no deterioration. Extremely long lasting in domestic systems.
Due to higher efficiency to overall size of the system is much smaller with base length of only 6 feet. Balcony type cantilever mounting possible. Idel for multistoried apartments, reducing hot water piping.
Cold-water tank could be mounted at a height of only 5 feet from the base of the system.

1. This Model use the all glass evacuated solar collector tubes as the heat-absorb element.
2. It is easy to operate and plug in install.
3. The average Tube Life is more than 15 years.
4. Warranty- Whole system including Tank Leakage and Deformation can be used more than 1 year.
5. The water inlet or outlet can be set up as your needed.
6. The best standing angle designed according to your location makes the heat efficiency is very high.


Solar Water Heater – With the spiraling cost of electricity this healthy alternative to heating water not only saves money but also runs for a long, long time. Central has introduced vacuum tube technology in Solar water heaters for the first time.

We at Central believe in bringing the benefits of the latest technology to our consumers. Now, in Solar Water Heaters too Central introduces “Vacuum tube collectors” for the time in India. Internationally renowned & accepted, this technology is superior to other prevalent systems in performance, reliability & ease of installation. Breakthrough technology that taps the unlimited power of the sun to give you enormous energy savings year after year.


Working of Central Solar Water Heater

The Central Vacuum Tube Collector solar water heater is made up of rows of parallel, transparent glass tubes. Each tube consists of a glass outer tube and an inner tube, or absorber, covered with a selective coating that absorbs solar energy well but inhibits radioactive heat loss. The air is withdrawn ("evacuated") from the space between the tubes to form a vacuum, which eliminates conductive and convective heat loss.

The Vacuum tube collector absorbs the heat from the solar radiation & heats up the water stored in the system through the Thermos phonic effect.


What is Thermos phonic Effect

A thermo siphon system relies on warm water rising, a phenomenon known as natural convection, to circulate water through the collectors and to the tank. In this type of installation, the tank must be above the collector. As water in the collector heats, it becomes lighter and rises naturally into the tank above. Meanwhile, cooler water in the tank flows down pipes to the bottom of the collector, causing circulation throughout the system. This is called Thermos phonic Effect. This process continues steadily for a number of hours till the water stored in the tank is heated up. Very high Temperatures up to 80-85 deg C can be had from such a system.

The water heated in this manner is stored overnight in the insulated storage tank and is available for use the next day.


CENTRAL SOLAR WATER HEATER (What is Thermos phonic Effect)CENTRAL SOLAR WATER HEATER (What is Thermos phonic Effect)


Heating from infrared rays of solar radiation
Greater absorption area per day
Greater absorption time per day
Minimum heat loss from the system due to the vacuum tubes & PUF insulated storage tank
Better performance in winter & on cloudy days. Up to 10oC higher temperature
Maintained free, easy to clean
Compact size - low height & lesser space required for installation.
Inner tank and outer tank body are made from SS304 superior grade stainless steel to withstand corrosions and to last a life time


Installation Requirements
Unobstructed sunlight on a flat or slopping roof
Shadow-free area
Close to the bathrooms to avoid long piping & heat losses
A water tank at a minimum of 2.5m (7 ft) above roof level
The solar collector tubes facing south.

Besides individual houses, the solar water heater is also ideal for schools, hostels, hotels, dairies, breweries, canteens and industries like automotive, fertilizer, chemical, textiles, pharmaceuticals, etc.

SOLAR WATER HEATER (Installation Requirements)SOLAR WATER HEATER (Installation Requirements)