How to choose the best Energy Efficient Windows.

The BFRC has made it easier for consumers to see how efficient a window is. From October 1^st 2010 all windows installed in the UK have to acheive a U Value of 1.6W/m².K or better. There are two ways the installer can prove this.

1. Provide a BFRC Energy Rating (A, B or C). Any company providing an "Energy Rated" window will provide you with a Energy Rating certificate (Usally in the form of a certificate or sticker on the window) proving the performance of the frame.
2. Provide a U Value certificate, backed by a BFRC Certified Simulator.

Both of these two ways provide you, the customer, with a sure fire way to see just how efficient the window frame is.

It's all in the label

Firstly, using the Energy Rating certificate, don't just concentrate on the A, B or C. Look for the Energy Index, this tells you how much energy the window the window gains/looses. E.g. An energy index of -3 will lose 3 kilowatt hours per square metre per year. This means that not all A rated windows will be the same. An A with an energy Index of 0, will be worse than an A with an Index of 6.

Secondly, look for the U Value itself. The window needs to acheive 1.6W/m².K or better (the lower the value the better)

Our Energy Efficient Window Specification
Here at Aztec our aim is simple, to produce Coventry's most energy efficient windows. We currently have four WER Certificates in two different profiles to give you the best choice that suits your home. You can view our WER energy certificates here.

To get an idea of how much money you could save by installing our PVCu Windows in your home, you can use our Window Energy Saving Calculator