How to plug gap around flue pipe.. any suggestions please?

[KELL45]

Afternoon/Morning all… I’ve attached a few pics basically the fire cement is just constantly falling out of the gap?? I was thinking silicon maybe or tape if some sort to plug the gap? Has anyone used a tried and tested product I’m in the UK thank you

 

[kennyp2339]

The black smoke pipe should be terminated on the inside of the room, class a pipe beyond that or insulated liner

 

[brenndatomu]

This looks to be a fireplace insert stove?

 

[RomanW]

Is it just me, or does that look like a massive fire hazard? Is that cement board it's going through? It looks like there was a collar siliconed on there at one point.

 

[Seanbear]

They sell caulikning for that here in the US. Or try metallic tape. It doesnt look the best but it works for what it is.

 

[KELL45]

Is it just me, or does that look like a massive fire hazard? Is that cement board it's going through? It looks like there was a collar siliconed on there at one point.

It was fitted by a Hetas reg installer. That’s fireboard it’s going through.

 

[KELL45]

The black smoke pipe should be terminated on the inside of the room, class a pipe beyond that or insulated liner

The black smoke pipe should be terminated on the inside of the room, class a pipe beyond that or insulated liner

 

[stoveliker]

We don't know what the code requirements are in the UK.
In the US, stove pipe cannot go through any wall or ceiling; there has to be a stove-pipe to (class A) chimney transition at such penetrations. This is a fire safety based code requirement here.

As fire safety does not care about location, there are some safety concerns here, even if the install might techincally be legal in the UK (which we don't know is the case).

So rather than patching the hole (indeed with something that is more flexible than cement), the advice is to correct what amounts to be a mistake in the view from this side of the pond.

 

[Eman85]

I'd check stovepipe manufacturers and see if you can find a collar that will cover the space. Even if you can't remove the pipe you should be able to cut the collar and slip it around and place the cut at the back then screw the collar to the fiberboard.

 

[Eman85]

https://www.northlineexpress.com/8-...=4581115197569307&utm_content=Detail category This is what I mean

 

[KELL45]

https://www.northlineexpress.com/8-heatfab-trim-collar-2800b-5218.html?msclkid=0a4707df40db17b2a74b64bcaad7ffca&utm_source=bing&utm_medium=cpc&utm_campaign=Shopping New&utm_term=4581115197569307&utm_content=Detail category This is what I mean

Perfect thanks

 

[begreen]

There should be trim rings available in the UK. Cement will always fall out because the stovepipe is expanding and contracting with heating and cooling.