Solar Hydronic Heating

When we think of solar we normally imagine panels on our roofs which are used to generate electricity. Solar hydronics, also known as solar thermal, is similar but is used to heat up water directly which can then be used to supply your hot water system or heat up your home.
Solar Hydronic Heating​

How does it work?

Solar hydronic/thermal technology uses an evacuated tube collector system located on a roof. Sun shining on the solar collectors heats a special fluid within the tubes. The fluid then pumps into heat exchange coils in an insulated storage tank.
The evacuated tubes don’t require direct sunlight, which means they get more heat from the sun for longer periods of the day and makes them ideal for the colder seasons or colder climates.
As the storage tank is insulated this means the water can be stored for several days at the required temperature so you don’t have top worry about not having hot water or heating at night or on cloudy days.
The hot water can then be fed directly to your hot water system or used to heat your home via radiators or underfloor heating systems. As the water can be circulated throughout a building on a continuous basis it means hot water is always available
Solar Evacuated Tube Hydronic Heating system

Why Invest in a Solar Hydronic System?

Although the initial cost of setting up a solar hydronic heating system can be high, there are many benefits associated with it.
  • Environmentally friendly : Solar thermal is an emission free source of energy, helping you to decrease your greenhouse gas emissions
  • Cheaper to run : The energy from the sun is free, meaning the running costs of these systems are much lower than other heating systems.
  • Low maintenance: As these systems use relatively simple technology, they are less likely to breakdown and require less ongoing maintenance.
  • Consistent hot water : With the ability to continuously heat the water and then store the water at the required temperature you don’t need to worry about not having hot water or a warm room when required.

Australian Hydronic Heating and Cooling are experienced in all hydronic heating systems, and can work with you to select and install the ideal solar hydronic heating system for your home.

ROTEX water and home heating system

ROTEX, now part of the DAIKIN group, is a manufacturer of innovative and environmentally responsible heating systems. Their ROTEX thermal store and ROTEX Solaris solar thermal system combine for both hot water and home heating. Australian Hydronic Heating and Cooling can supply and install a ROTEX system in your home.
Rotex thermal store and solaris system
The ROTEX thermal store places special emphasis on water hygiene for showering, bathing, cooking or hand washing. The system ensures you have hot water available at the right volume and at the right temperature.
The thermal store system works in conjunction with the ROTEX Solaris solar panels to provide water heating and space heating backup, to be used for pressurised solar and drain-back applications. The Solaris solar panels convert almost all of the shortwave solar radiation into heat through their highly selective coating.
The ROTEX thermal store comes in  two versions. The Sanicube Solaris is an ideal addition for an oil or gas condensing boiler. The HybridCube works specifically with a ROTEX air-to-water pump HPSU, designed for low flow temperatures. When either version is combined with Solaris Solar system they provide the highest level of energy efficiency thanks to low heat loses, perfect water hygiene and unlimited hot water.
The ROTEX Solaris is available in two different styles. The Solaris-P is a pressurised solar system which is simple to install and suits all applications and buildings. An additional plate heat exchanger is not required. The Solaris-DB is a direct Drain-Back system,  where the water in the store is supplied directly and without heat exchanger to the solar panels, heated and then stratified into the store. This increases the efficiency of the solar collectors and the entire utilisation of the installation.
In all ROTEX solar thermal stores, solar heating support has also been integrated ready for connection, alongside the solar hot water generation. If the solar heat is not consumed immediately, the ROTEX solar thermal store can store large volumes of solar heat and it is possible to use the heat for hot water or home heating hours later or even the next day.

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