Argon filled double glazed windows

[veto]

Does anyone know how to check if a double glazed window has argon gas in it?.

 

[The Bullet]

you can't really check for argon gas, it might be printed on the spacer bar though. You can only check for low e coating, but you need a "merlin" low e detector. If it has that it probably has argon gas.

 

[^woody^]

It will have a sticker saying "argon filled"

If not, it wont be argon filled

 

[Pinnacle69]

in one of the corners you may be able to see a filling hole where the gas enters then is sealed off ?

 

[The Bullet]

It will have a sticker saying "argon filled"

If not, it wont be argon filled

i think he means after the window has been fitted, surely the sticker doesn't stay on forever.

 

[The Bullet]

in one of the corners you may be able to see a filling hole where the gas enters then is sealed off ?

used to be how they got the argon in but not any more

 

[veto]

The reason i ask the question is because i have cracked a large window in my conservatory. When the conservatory was ordered it was on the basis of Pilkinton K glass argon filled,both glass roof and side windows. The stickers were taken off by the fitters and disposed of,the only etching on the glass is a BS standard kite mark.The man from a glass replacement company said he could not see any plug holes for the argon filling inside the spacer bars on the window glass,but they are visible on the roof glass. I am sure i have pilkington K glass as you can see the blue tint from the outside. Is it possible to argon fill by another method other than the plug hole filling. I had heard a rumour that if you shine a lighted candle in the dark against the inside of the glass,the reflection in the glass should be of a different colour to the bright colour of the flame on the candle,i.e. the light retracts of the argon gas as different colours !. Anybody heard of this ?.

 

[The Bullet]

Sound like rubbish to me on the candle trick - low e coating is actually a thin metallic film, so that may reflect a different colour rather than an inert invisible gas, it sounds like it would have been argon filled. The kite mark indicates toughened (tempered) glass. The fact there is no plug hole means nothing. Vast majority of glass unit manufacturers put the argon gas into the sealed unit without plugging.