How We Started

We started our business nearly two decades ago. After a fifteen-year apprenticeship learning from the industry’s best we decided it was time to make our own mark. Taking advantage of the rapid and wide-spread growth of the solar water heater industry world-wide, we identified an opportunity for a new business model. Following the lead set by the automotive industry, we set about tapping into the output of the biggest and best international solar and hot water system manufacturers.

Forming alliances with premier solar companies located in countries as diverse as Holland, Australia, China, Germany & Italy and focusing on designing the best and most appropriate systems – and only directly manufacturing those items and components that could not be better sourced elsewhere, we’ve designed a range of solar hot water systems suited to Australian conditions.

Hot Water from the Air

To understand the concept of heat pumps, imagine a refrigerator working in reverse. While a refrigerator removes heat from an enclosed box and expels that heat to the surrounding air, a heat pump takes the heat from surrounding air and transfers it to water in an enclosed tank.

Heat pump technology makes efficient use of the heat in the surrounding air,even at temperatures as low as -7°C. Infact the Enviroheat system is so efficient that it can convert 1kW of electricity into over 4kW of heat.

Harvesting Solar Energy

The driving force for a solar hot water system comes from the solar collectors – in particular, the absorber plates. Covered in a black (or very dark surface) the absorbers are exposed to the sun. The energy contained in the solar radiation is converted to heat (that is, into thermal energy) by the absorbers.

Our TS Systems

The Envirosun ‘TS Range’ of thermosiphon or passive solar hot water systems offers maximum efficiency and a cost-effective solution for most applications. These systems feature the traditional ‘tank-on-the-roof’ configuration – an arrangement that was first deployed and commercially marketed around 1909. The operating principle of these early systems is no different to that upon which a modern-day Envirosun system relies: water in a flat plate solar collector is heated by the sun and the water rises into an insulated storage tank located above the collector … but that’s about all that our modern systems share with their technological predecessors.

Our AS Systems

The Envirosun ‘AS Range’ of pumped or active solar hot water systems offers greater flexibility, improved aesthetics and higher capacity. These systems only require the solar collectors to be installed on the roof with the storage tank situated at ground level or any other convenient and out-of-the-way location. The operating principle of these systems is relatively simple – when the 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. Once the tank is full of hot-water, the pump is switched off, but ready for the next cycle.