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. Venus has introduced vacuum tube technology in Solar water heaters for the first time.

Upsbatteryplus is the one stop solution for all your solar products. We are the best solar water heater dealers in chennai who offers water heaters with Vacuum tube technology.


solar water heater


The Venus 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 The air is withdrawn ("evacuated") from the space between the tubes to form a vacuum, which eliminates conductive and convective heat loss.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 Thermosiphonic effect.


  1. Vacuum tubes with superior coating to absorb maximum solar radiation and for maximum heat retention.
  2. Aluminium reflector panel to maximise solar absorption.
  3. Minimum heat loss from the system due to the vacuum tubes & PUF insulated storage tank.
  4. Extra thick 5cm PUF Insulation for minimum heat loss.
  5. Better performance in winter & on cloudy days. Upto 10°C higher temperature.
  6. Backup electric heating element for cold rainy days.
  7. Superior corrosion resistant stainless steel inner tank.
  8. SS 304 for water with TDS (< 200 ppm).
  9. 316 grade for hard water, saline water (>200 ppm).
  10. Powder coated MS stand - sturdy and rust resistant.
  11. Maintenance free, easy to clean.
  12. Compact size - low height & lesser space required for installation.


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

DESCRIPTION 100SV 316 /304 200SV 316 / 304
Capacity 100 litres per day 200 litres per day
No.of Vacuum Tubes 15 Nos 30 Nos
Safety Devices Thermostat Thermostat
Pipe Connection 3 /4" SS Pipes 3 /4" SS Pipes
Backup Electric Heating 2 kw heating element 2 kw heating element
Rated Working Pressure 0.05 MPa 0.05 MPa
Stand Angle 24° 24°
Daily Usage upto 4 persons upto 8 persons
Maximum No .of Outlets 2 4
Warranty 5 Year 5 Year
Dimensions (In mm)
Model A B C D E F G
100 Ltrs 1250 1910 1800 0420 1000 1350 1415
200 Ltrs 1250 1530 1510 0420 2100 2270 2335



  1. Superior corrosion resistant 316 grade SS inner tank suitable for hard water and saline water >200 ppm
  2. Unique Heat Exchanger design - no scale formation, greater pressure withstanding
  3. Extra thick 5cm PUF Insulation for minimum heat loss
  4. Long life corrosion proof GI precoated, 0.4 mm thick outer body.
  5. Vacuum tubes with superior coating to absorb maximum solar radiation and for maximum heat retention
  6. Powder coated MS stand - sturdy and rust resistant