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Solar Water Heater - Mercury Domestic - Solar

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Mercury Domestic - Solar

Venus has been at the forefront of the water heater bussiness for over 50 years now.Wirh a wide range of models that has given warmth to millions of famiies across India. Innovating constantly, One of the innovations is a hot water heater that uses solar power, Saving people tons of money on their power bill, as well as helping conserve energy.

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Guarantee : 5 Years on Inner Tank

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Solar Water Heater – With the spiralling 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.


We at Venus believe in bringing the benefits of the latest technology to our consumers. Now, in Solar Water Heaters too Venus introduces “Vacuum tube collectors” for the first 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 Venus VTC 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 The air is withdrawn ("evacuated") from the space between the tubes to form a vacuum, which eliminates conductive and convective heat loss.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.

What is Thermosiphonic Effect

A thermosiphon 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 Thermosiphonic Effect. This process continues steadily for a numer of hours till the water stored in the tank is heated up. Very high Temperatures upto 80-85 °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.


Heating from infrared rays of solar radiation

Greater absorption area 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 10ÂşC higher temperature

Maintance free, easy to clean

Superior Corrosion resistant epoxy coated inner tank and Powder coated MS stand - sturdy and rust resistant

Compact size - low height & lesser space required for installation.

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


Superior Corrosion resistant epoxy coated inner tank

Extra thick 5cm PUF insulation for minimum heat loss.

Long life corrosion proof Pre coated outer cladding.

Backup electric heating element for cold rainy days(Optional)

Powder coated MS stand - sturdy and rust resistant

Vacuum Tube Technology with triple layer coating for maximum absorption of solar radiation

Energy Savings

Energy Savings

Venus Solar Water Heaters are designed to offer substantial savings when compared to electric water heaters.

Model (Ltrs./ day) Total cost of a solar water heater Cost of Electric Water Heater * Difference Annual Saving **in Electricity Pay back Period***
KWH (Rs.)
MY100L Rs.23080/- Rs.14,500/- Rs.8580/- 900 units * Rs 5 Rs.4,500 24 Months

* One 100LPD Solar Water Heater replaces 2 Nos. 25 Ltrs. Electric Water Heater

** Calculated at tariff rate of Rs. 4.50 / KWH assuming usage of solar Water Heater for 300 Days / Year. Energy consumed =3 units / day = 900 units / 300 days

*** Pay - back period = Rs.8580/ Rs.4,500 = 2 years = 24Months


Description MY100L MY150L MY200L
Capacity 100 Litres per day 150 Litres per day 200 Litres per day
No. of Vacuum Tubes 10 Nos 15 Nos 20 Nos
Safety Devices (optional) Thermostat Thermostat Thermostat
Pipe Connection 3/4" 3/4" 3/4"
Backup Electric Heating (optional) 2 kw heating element 2 kw heating element 2 kw heating element
PUF Insulation Thickness 5cm 5cm 5cm
Stand Angle 35° - 38° 35° - 38° 35° - 38°
Daily Usage upto 4 persons upto 6 persons upto 8 persons
Maximum No .of Outlets 2 3 4
Guarantee* 5 Years 5 Years 5 Years

Dimensions (In mm)

Model A B C D E F
100Ltrs 1350 1425 1950 480 810 1000
150Ltrs 1350 1425 1950 480 1200 1400
200Ltrs 1350 1425 1950 480 1610 1800

Higher capacities models are also available (MY300D, MY500D, MY1000, etc.)

MY100S304, MY150S304 & MY200S304 models are SS304 grade inner tank, available in limited regions.

* Refer “Terms & Conditions” in User Manual.


5 Years on Inner Tank

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People are turning towards Renewable energy sources in various applications. In the case of heating water, we are blessed with solar energy at no cost. This energy is harnessed by solar water heating systems to provide hot water in an energy efficient manner. With the spiraling cost of electricity, solar water heaters in India are a healthy alternative to heat water and this not only saves money but runs for a long, long time. There are both domestic solar water heaters and Commercial solar water heaters available in the market. The choice of the solar water heating system will depend on the hot water requirement, weather conditions, space availability etc.
The uses of solar water heaters are manifold, they are not only cost effective but pollution free, environment friendly and low maintenance. They can provide around 60 deg to 80 deg. of hot water, very easy to operate and can be installed on roof-tops and terraces. Solar water heaters of 100 and 300 liters can be used for domestic applications. Larger systems can be used in commercial establishments and in apartments, hospitals, hotels, hostels etc. Venus Solar water heaters India offer both Domestic solar water heaters and Commercial water heaters. Solar water heaters India come in two types namely Vacuum glass tube model and Flat plate model. Venus offers Mercury Vacuum glass tube model for both Domestic and commercial usage. The Venus Vacuum Tube Collector solar water heater is made up of rows of parallel, transparent glass tubes. Venus Halo Flat plate solar water heaters are also available for both domestic and commercial purpose. Venus solar water heaters is the leading brand in Solar water heaters India.

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