Does double glazing save money?

starstudded

I know they say that double glazing is more cost efficient because it cuts energy bills but has anyone installed new windows and found that they didn't use as much gas or electricity?

skinback69

it all works hand in hand with each other you see if you have double glazing you put ur heating on and less warm air is escaping from the windows as they are double glazed meaning your rooms heat up quicker therefore the room thermostat turns off quicker and for longer
triple glazing is even better
hope this helps

Canucklehead

starstudded wrote: »

I know they say that double glazing is more cost efficient because it cuts energy bills but has anyone installed new windows and found that they didn't use as much gas or electricity?

Good evening: See this advice from the Energy Saving Trust...a very long payback time so try insulating loft, walls, hot water pipework, HW cylinder and adding controls to your CH system (programmer and TRVs) first at a much lower cost.

HTH

Canucklehead

skinback69

to be honest i would get ur windows done first as windows let the most heat out along with ur roof then outside walls

TEDDYRUKSPIN

Double glazing has been around for a long time. The cost of replacing the windows and also saving money does not make sense! Strange but true. The amount of money saved on energy bills due to double glazing equates to around 13 years, I believe. Maybe longer.

All I can say, if your windows are not damaged, don't replace them. Waste of time. But if they are, look around.

You can get some normal UPVC double glazing windows really cheaply. 5 windows and door costs around £3k. But be warned! CHEAP.

sashman

Quickie science lesson.
Single glazed windows heat lost through glass approx 5.8 units (called Uvalues explained later)
Pre 2002 DG was circa 2.8 units (50% better)
since 2006 DG needs to be 2 in England and 1.8 in scotland
Next year this is set to reduce further, but today we have WER's window energy ratings, the ABC labels you see on fridges etc
2006 compliant windows are generally a D or E on the new scale.

Listen upo, here the good bit, C rated save 74% against a single glazed window and the A rated is energy positive, thats right it gains more energy than it loses (over the course of a year)

But yes new windows are expensive if you only wish to factor in the energy savings, however the difference between non energy rated and the energy rated versions gets paid back in 18 months!

www.bfrc.org have a free energy calculator and www.ggf.org lists good window companies

hope this helps

ps U value is the amount of energy, lost through a material measuring 1 metre square, every hour for every 1 degree temperature difference inside to outside.....do the maths its scary.

Viper_7

It's only cost effective if you're moving to a new house with them already installed. It's not cost effective installing it - unless you plan to be there a long time. However they should also add some value to the property.
Also should consider cost of maintaining wooden frames.

Cost to the environment - avoid UPVC and stick to wood.