Envirosun split solar hot water systems
Envirosun AS solat hot water system range

The AS “active solar”  Envirosun Solar Hot Water Heaters are also known as the split solar hot water system, they offer greater flexibility, improved aesthetics for your home and a larger hot water storage tank capacity

These solar hot water systems only require the solar panels to be installed on the roof with the hot water storage tank located at ground level or any other convenient location throughout the home.  Envirosun AS solar hot water system are relatively simple in operation – when the solar hot water panels (also known as solar collectors) are able to add heat into the storage tank, a small pump is switched on to circulate hot-water from the collectors and replace it with cool water from the tank. 

 The circulation pumps are relatively small and silent, they also draw a negligible amount of power (less than 28 watts) that is also only used when operating or needing solar to increase the hot water storage cylinder’s temperature.   

When the collectors are 6°C hotter than the water in the storage tank, the circulating pump is operated. When the differential falls to 4°C or lower, the pump is not operated. The microprocessor also uses the sensor information to control a suite of over-temperature protection modes:

  • if the water in the Envirosun storage tank reaches 70°C, the solar pump is not operated

  • if the solar collector panels temperature reaches 190°C, the pump is cycled on to control the temperature to below 185°C therefore protecting the solar panels

  • if the solar panels temperature reaches 200°C the pump is not operated to prevent damage

  • if the tank temperature has risen above 70°C and the collectors are cooler the pump is run intermittently to protect the storage tank from damage and overheating 

The Envirosun AS smart control system is absolute state of the art with a LED screen to tell you exactly whats going on inside our weatherproof cover 


Envirosun solar hot water systems are made of the world most advanced solar products


Envirosun solar hot water system pumps

Envirosun have the absolute latest and proven  technology in our AS range of solar water heaters,  highest quality European made  solar controllers, sensors and pumps are within 

RESOL GmbH - Solar & system controllers, Solar controller DeltaSol BS/2Salmson SOLAR SB 04-15 Solar Hot Water Pump Open Loop system

Envirosun use the best solar valves from AVG
Best quality solar panels on Envirosun
Envirosun use the strongest toughened glass
Envirosun solar hot water panel

Envirosun AS split solar hot water brochure and Owner and Installation manual


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Buy Envirosun solar hot water systems
Envirosun Solar Hot Water Systems Australia, New Zealand and South Pacific