How to stop double glazed windows opening far

[EugenesAxe]

We bought a house with double glazing throughout, but I've never really experienced it. All windows, except those in our room, only open a small distance. Does anyone know how you arrange this? I would like to do those too... I am worried someday my young children will manage to get them open and then fall out.

I've Googled a lot on this but can't find an answer. You can buy 'restrictors' but it feels like this is integral to the design of the frame. I haven't had a really close inspection though... I'll do that next if this post doesn't shed light on things. Thanks!

You can buy restrictors which retrofit to the window hinge. Something like this should fit with a standard UPVC double glazed unit. Not endorsing a particular product just what came up with a google.
They look integral to the frame but are often retro fitted and are usually easy to do. Often they have a quick release for emergency opening. Its not always obvious (so kids can't do it) but youmay also want to work out how as an adult you can release yours in case you need to fully open the window. Example here

Thanks wonky - I think you are right that they have been retrofitted. The new part of the house is missing them, which makes sense as that was added with the last owners, who had grown-up children.

we bought strap type limited for the children's bedrooms that you just screw into the UPvc frame and are lockable

Do you have a floor above your bedroom, Eugene? If so, the window in your bedroom may well be a fire escape: it is generally a requirement that houses with a second/attic floor should have one on the first floor, because it's considered too dangerous for people to jump out of higher windows.

It might be a good idea to make sure whatever limiter you use can be quickly and easily opened in case of a fire.

flow4 - no we don't. I will get one that I know how to open anyway I think, but we could get out of the bathroom window onto a low, sloping roof, if necessary. It wouldn't matter so much if the children fell from there - it's an effort to get up to the window and even if the worst happened, it's not an 8' fall onto paving slabs like the other side!