Strange spreading scratches on stove glass

smcqis

Recently I have noticed small individual groupings of sratches (about 2-3mm each) on the inside of my stove glass. This has started to spread (like a disease on the glass) along the bottom of the glass and up about 3cm. You cant notice it if you look level eye at it but if you look at an angle (e.g. door on the glass from above it is very noticeable)

Im not sure what to make of this, has anyone else experienced anything like this or know what could be causing it or what it means?

These scratches were not created by ourselves and its not likely to be anyhting hitting it as it is the area of glass that is protected by the guard at the front of the fire.

smcqis

In fact I would even go as far as saying it would appear like shattering from within the glass

w50nky

Not unusual, has been mentioned on this forum before. It can be caused by using some types of smokeless fuels. I do not think the glass is likely to shatter any time soon.

smcqis

Interesting, we only really burn smokeless goal, is there any reason for it? Is it something that could be replaced under warranty if it got any worse?

muckybutt

Happened to us in our old house, we had an Aarrow stove and we only burnt smokeless, it went like crazy paving.

Never shattered, most stove glass is a ceramic type high temp glass and is extremely durable to high temps.
You could go down the route of warrenty replacement if still under warrenty....I would ! but if it doesnt shatter then leave alone till it gets to a point where you have to do something about it.

smcqis

I read on a similar post on this someone suggested it was due to high petroleum within the coal. Is this the stuff that causes coal to be shiney?

welda

Have the same scratch like issue on both panes of my villager, I put it down to some kind of heat stress, which it must be?

Did cross my mind glass will eventually pop, certainly require replaced sometime in the future. While installing replacement glass gasket seals, I made a paper template, then cut to shape a couple of pieces of 1.6mm thick stainless steel. Thought it would be good have at hand if glass did go, whack in the stainless so I can still use burner till replacement glass arrives.

I now burn both wood and, smokeless.

Regards........

[Deleted User]

Suggest sourcing a replacement glass as it will split at some point in the not to distant future.

smcqis

Would this be covered under warranty?

muckybutt

Ring and ask them is the easiest option

Greenfires

I've seen a number of stoves with the entire glass area looking "frosted" as described. It appears to be internal to the glass - if you run your fingers over the inner surface it feels completely smooth - whereas if it was scratched on the surface I reckon you'd be able to detect it with your fingertips. As mentioned - it seems more common with stoves running smokeless fuels, which are known for producing more corrosive gases - I'd guess that different types will produce different levels.

I think the petroleum in coal thing is more likely to be referring to the use of petcoke - which isn't coal at all, but a by product of the oil refining industry. This stuff isn't suitable for use in a stove - and is likely to shorten it's life by a fair old bit if you do. It's also very high in sulphur and bad news for the environment when burned in something like a domestic stove.

Cheers,

Andy