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Frequently asked questions

Why should I consider using solar energy?

Firstly, because of reduced CO2 emissions, you can rest assured that it is better for the environment and you will also be helping to conserve the world's rapidly diminishing supplies of gas and oil.

Secondly, utilising solar energy for hot water will help to reduce the impact of rising oil and gas prices and means that you won't be so reliant on these conventional fuels, thereby reducing your energy costs.

Thirdly, in our opinion installing a good solar system can add value to your property.

How does a solar DHW heating system work?

Solar collectors absorb energy from the sun to heat a fluid that is pumped in a sealed circuit to an indirect coil in a water cylinder to heat the domestic water.

Where are the collectors fixed?

Navitron high performance solar collectors are easily fixed to pitched or flat roofs.

Surely there is not enough sunshine in this country to make it work?

Solar DHW heating systems use solar radiation to generate heat. This means that it does not rely on just direct sunlight, it uses diffused radiation too so that the system also works on cloudy days. The DTI has calculated that there are sufficient solar radiation levels across the whole of the UK to provide useful energy. In areas with lower solar radiation, the number of collectors can be increased to maximise solar energy usage.

Can they only be put on a south facing roof?

Ideally the panel should be mounted on a south facing roof or one facing south westerly up to 30 or 40 degrees with only minimal loss of efficiency. If this is not feasible then a viable alternative is a split system with one panel on a west facing roof and a second on an easterly facing roof. Increasing the surface area (more tubes) can compensate for panel mountings in non ideal situations.

Is it expensive to install a solar domestic hot water system?

Prices have dramatically reduced through the increased acceptability of solar energy as an alternative to fossil fuels. The typical cost of a three to four bedroomed house should be in the region of 2500 to 4000 and with spiralling energy costs this is likely to pay for itself within approximately 5 to 7 years depending on the system installed and the amount of hot water usage.

What maintenance is required for Evacuated tube systems?

There is virtually no maintenance required for our systems and unlike flat plate collectors the tubes do not need cleaning, so there is no climbing on to roofs to increase the efficiency! The life expectancy of a tube is 25 years and we warrant our systems comprehensively for a full five years.

I have heard that Evacuated tubes are more fragile than Flat plate collectors?

If vandalism is likely to be a problem, then don't fit a flat plate collector. A brick is just a likely to shatter one of those as it will a tube! However, would you prefer to replace a tube or two or the whole flat plate. Evacuated tubes are tested and pass for hail stone showers the likes of which would dent the panels of a car!