Water heater companies expect solar water heaters to become big growth drivers over the next few years. Over the years, there have been technological advancements and innovations in making solar water heaters more efficient. Two types of technologies are used for solar water heating—flat plate collectors and evacuated tube collectors. Let’s have a look at some of the new launches.
Model: VIVIA, Brand: Kotak
Manufacturer: Kotak Urja Pvt Ltd, Bengaluru
Manufacturer: Kotak Urja Pvt Ltd, Bengaluru
Launched in October 2012, Vivia is suitable for water sources which have high TDS and salts which not only form salts but also cause leakages. It provides non pressurised gravity feed system and comes with non contact copper coating in vaccum for clog free performance.
Key features
Non contact copper coating; •Ultra modern Azuretech support structure for easy fitment to varied roof types; •HCFC free, eco friendly, high density PUF insulation for high heat retention; •Glass enameled tank for hard and high chloride water condition; •Seven year of unparalleled warranty; •SS electrical filament for backup; •Cu-Ni-Al selective coating for high absorbtivity and low emissivity; •Magnesium anode for galvanic protection
Contact details: Raghunandan, vice president, engineering; Ph: 9844009761; [email protected]; www.kotakurja.com
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Model: V-HOT500PLUS (AL), Brand: V-Guard, Manufacturer: V-Guard Industries Ltd, Cochin
Launched in March 2012, the V-HOT500PLUS (AL) is an advanced solar water heater made from high quality components that come with international technology. Its evacuated collector system facilitates high efficiency absorption and utilisation of solar energy, with minimum heat loss.
Key features
Models are available with an aluminium stucco finish; •ISI back-up heater with automatic temperature controller; •The number of tubes varies according to the capacity; •High quality vacuum tubes made from borosilicate minimise heat loss; •The storage tank is made of food grade stainless steel SS-304L; •Three layer evacuated tube (AlN/SS/CU) facilitates excellent heat absorption and minimum heat emission; •High quality PUF insulation minimises heat loss; •Five-year warranty
Contact details: Siju N P, DGM, Marketing; Ph: 9895055111, 04843005814; [email protected]
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Model: 500L Thermosyphon vacuum tube Brand: Novergy Energy, Manufacturer: Novergy Energy Solutions Pvt Ltd, Udaipur
Launched in 2012, Novergy solar water heater incorporates high quality PUF insulation inside the tubes, permitting low loss of heat during the night. It incorporates the latest German evacuate glass tube technology that helps the water stay hot for a longer time. From the seamless welding of the inner tank to the anti-corrosive glass tubes, every aspect of the solar water heater has been designed and built to perform anywhere.
Key features
Quick start-up time (2-3 hours) and 92 per cent efficiency in water heating; •Uses latest PUF insulation, leading to low heat loss; •Anode protection device shields the tank from hard water while the glass absorber pipes are totally non-corrosive; •Low on maintenance, parts easily replaceable; •Strong anti-wind support frame; •Thick (SS304) inner tank with seamless welding
Contact details: Ph: +91-294-2415487, 2450467; [email protected], [email protected]; www.novergy.co.in
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Model: PRS-C001, Brand: DenSolar
Manufacturer: Haining Deno Solar Equipment Co, China
Manufacturer: Haining Deno Solar Equipment Co, China
Launched in 2012, PRS-C001 is a pre-heated solar water heater. One copper coil is installed inside the tank as the heat exchanger. When water flows into the copper coil, it absorbs the heat of the water in the tank via the copper coil.
Key features
Inner tank: SUS304-2B, 0.4mm thickness; •Outer tank: Coloured steel and stainless steel; •Copper coil: Length: 25-30 m, diameter: 12mm, thickness: 0.8-1.0 mm; •Working temperature: 90°C; •Working pressure: Non pressure, it can bear tap water pressurised (6 bar); •Warranty: 5 years for the full system and 15 years for the vacuum tube
Contact details: Ph: (86)573-87872121, (86)15906730413; www.denosolar.com
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