By how much can UK energy efficient windows reduce my heating costs?
Realistically, you could see heat loss cut by as much as 70% with an upgrading of ageing single glazed windows or substandard double glazing to A-rated energy efficient windows.
In a typical semi-detached home, annual savings on heating of £100-£300 are reachable. Savings can potentially surpass that range if residing in a detached or larger property thanks to their increased window areas and higher energy demand.
Other influencing factors include U-values, airtightness and what insulation is already in place.
Which wins for energy efficiency – casements, sash or tilt & turn windows?
It’s the sealing in the different window styles that impacts their energy efficiency. Gather more details on draught proofing windows and the best energy efficient windows from Permaframe’s expert window advisors.
Casement windows and tilt & turn windows close tightly, hence why they’re so good at restricting draughts and heat loss, but traditional sash windows occasionally suffer more air leaks.
To be assured of affordable heating bills and enhanced home comfort, give precedence to well-sealed, high-performance window styles.
Tell me how A, B and C-rated windows vary
A, B and C-rated windows accomplish mixed levels of energy efficiency and are labelled in accordance with the Window Energy Rating (WER) system.
Optimum energy efficiency can be obtained by purchasing A-rated windows, which retain abundant heat and minimise energy consumption. C-rated windows are the minimum accepted rating to fulfil building regulations and come in cheapest, but it’s important to know that they cannot reduce costs or amplify warmth like A or B-rated windows.
You will notice a drastic difference in shifting from C-rated windows to A-rated windows – draughts will be virtually eliminated, creating a much warmer atmosphere.
What are U-values?
Query the U-values of windows too when perusing the window collections of installers. A U-value denotes how much heat can escape through a window (low U-values indicate excellent insulation). Typical ranges are:
- Single glazing: 5.0–6.0 W/m²K
- Old double glazing: 2.8–3.0 W/m²K
- Modern A-rated windows: 1.2–1.6 W/m²K
Observance of WER ratings and window U-values will help you uncover designs that give rise to improved home insulation at a reduced cost. Drop into our Frome showroom if securing energy efficient windows is at the top of your home improvement wish list for this autumn.
LOOKING TO REPLACE YOUR WINDOWS?
We have a fantastic range to choose from so whether it’s a modern style or traditional timber effect windows – we are confident that we will have windows to improve any home to give it the finished look with elegance.
LOOKING TO REPLACE YOUR WINDOWS?
We have a fantastic range to choose from so whether it’s a modern style or traditional timber effect windows – we are confident that we will have windows to improve any home to give it the finished look with elegance.
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