Solar Hot Water & Heat PumpsWe design and install hot water systems for residential and commercial clients.
Possible electricity cost reductions of 50-90%
Installing a solar hot water system makes perfect financial sense. A large chunk of domestic and commercial power bills represents hot water generation, making solar hot water or heat pump technology an integral part of your blueprint towards energy efficiency and financial savings. The technology has been around Australia for decades and is perfectly capable of supplying residential, business and commercial hot water needs.
- Mature technology
- Simple Installation
- Warranties of up to 15 years
- Tax incentives and Government rebates such as STCs (Small Technology Certificates)
Research shows that a combination of Solar photovoltaics (PV) and solar hot water or heat pumps brings quicker financial benefits than PV alone. Not enough sun shining on your roof? Even if your premises do not have enough sun exposure to make a solar hot water system viable, we can still help. Heat pump technology is a highly efficient way of heating water that does not rely on the sun’s rays.
Heat pump technology has been around for decades. It is an ingenious method of capturing the heat energy of ambient air by cycling gas within a closed loop system. Sounds complex? Well, the important things is that it works and can save you up to 75% on your hot water bill!
Whether you run a restaurant, motel or swimming pool, a solar or heat pump hot water system can cover at least part of your hot water needs. You will instantly save precious dollars on your power bill and project a positive, green image to your customers.
Evacuated tube vs. flat panel technology
These days, most systems use evacuated tubes as sun collectors rather than the older flat-panel solar collectors. Evacuated tube technology has proven to be more efficient for solar hot water systems, mostly due to the passive tracking of the sun by the round collectors as well as simpler installation and maintenance.
Evacuated Tube Technology explained
These days, most systems installed are split systems, with an evacuated tube solar collector mounted on the roof and a hot water storage tank usually installed at ground level. Other key components include a solar controller, a small electric pump and an electric or gas booster.
How does it work?
The water from the storage tank on the ground is pumped up to the roof and flows through the heat exchanger or manifold. The evacuated tubes contain a working fluid which gets heated by the sun’s rays and rises to the manifold where it heats up your hot water which then returns to the storage tank, where it stays until needed for use in the home.
Split systems are often called ‘active’ solar systems, as the electric pump circulates the water up to the roof and back to the storage tank. The controller’s job is to keep the system running as efficiently as possible by deciding when to run the pump and avoiding overheating.
Check out this video by one of our suppliers for a more in-depth explanation of evacuated tube technology.
Heat Pump Technology explained
Heat pump technology captures the heat energy of ambient air by cycling gas within a closed loop system. It works even in cooler climates and has the potential to save you up to 75% on your hot water bill.
Here is how heat pumps work in more detail:
The heat from the ambient air is absorbed by a refrigerant gas in the “evaporator” tank, which has an ambient temperature of minus 25°C. A small compressor compresses the refrigerant gas, which raises its temperature and pressure. The outside of the water storage tank is the “condenser”, it has special pipes wrapped around it where the high temperature gas passes through, transferring the heat from the hot pipes to the water inside the storage tank.
When transferring the heat to the water storage tank, the compressed gas loses its heat and becomes a liquid again. This liquid gas then passes through an expansion device and back to the evaporator where the cycle repeats.
Heat pump systems are very efficient as they do not require electricity for any boosting. The only power required is for the compressor, fan and digital display panel. They will work in temperatures from as low as -10°C up to 40°C, day and night, rain or shine, sun or shade.
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