Designed specifically to decrease energy usage
There are three key performance factors that affect a window’s energy efficiency.
These three factors are:
· Thermal
transmittance (or U-value), which measures how good a window is at
preventing heat escaping from inside the building, the lower the value, the
lower the heat loss.
· Solar
factor (or G-value), which measures the amount of heat gained from sunlight
passing through the glass.
· Air
leakage (or L-value), which measures how air-tight the window is.
We are constantly innovating, fine-tuning and perfecting all of our products. Our best selling B-rated EcoRetain windows offer superb performance. Zero Effective Air Leakage means they are completely draught-free when closed and their ultra low U-value means heat loss through the windows is minimal. We achieve this by using our Ultra 2 sealed units that feature inert argon gas between the panes and advanced soft-coat Low E glass.
Add to the equation the remarkable Clearline
spacer bar, unique in the UK to Anglian and an innovation which we have
invested very heavily in, and performance is improved further. Clearline
improves the aesthetics of your window because it does away with the thick
metal spacer bar visible between the two panes of glass along the edges of the
glazing unit. Secondly, and this is the really clever bit, it reduces the
‘thermal bridging’ effect that transfers cold from the outside to the inside of
the building through the fabric of the window.
Now, with the A-rated EcoGain window, we have improved the
energy rating even further. That’s because our A-rated EcoGain energy efficient windows
uses a glazing system that incorporates Low Iron Glass in the outside
pane, which significantly increases the amount of sunlight – and therefore heat
– that passes through the window into your home.
The result is a window that effectively heats
your home by reducing heat loss; eliminating draughts and allowing more
sunlight in