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701 Chimneys & Fireplaces questions

Block up after removing gas fire

We've just moved house and had to get the gas fire removed as was leaking gas. We don't want to replace it - instead block it up and get plastered over.
My question is how to block this up? This is a detached house built in the early 80's. There is a flue which goes up inside the cavity wall - in the loft it appears to be aluminium tubing, then to a chimney on the roof.

Do I just block it up with bricks/mortar or is an air brick required?


Want to remove chimney breast in sitting room (no chimney breast in room above sitting room)

Hi, we are currently buying a house that has a lounge and a sitting room - we want to knock down the adjoining wall to create one space but the sitting room has a gas fire in a fireplace in the chimney breast. The house has a chimney stack that runs up the side of the house but whats odd is that there is no chimney breast in the upstairs bedroom directly above the sitting room - does this mean its already been removed or is the chimney stack in the sitting room false? I'm imagining if we take it down we'll be left with a cavity that goes into the stack is that right? Obviously we'll get professionals in but wanted some idea as we aren't able to go into the house and have nose!

The house was built in 1999.


Constructional hearth size and placement

Hi there

I am getting a wood burner installed inside a chimney recess. It is a model of stove that requires a constructional hearth as it can "in extreme conditions heat the hearth above 100 degrees".

I have pulled up my floor boards and have found there is a brick and concrete hearth which has dimensions that meet regulations (500mm out into room and 150mm either side of jamb) however it is situated 150mm below suspended floor. It has flooring beams resting on top of the edges of the hearth and then has another concrete hearth built on top which has dimensions smaller than the bottom hearth (but still large enough to meet regs for decorative hearth and comes up level to flooring)

I have only ever seen a constructional hearth built up to flooring level so my question is would the above still meet regulations even though the constructional hearth is below flooring with beams resting on top of edges?

Any experience with this kind of hearth would be much appreciated.

Many thanks


removing 2 chimney breast in an old house terraced house

I just purchased a new house. I'm intending to remove 2 chimney breast in lower floor as the upper floor ones been removed already been by prev owner and he had fitted gallows braket in loft.

Now I've been told in order to remove the lower chimney breast, the upper floor has a slab, which needs to be removed from upper floor and and whole ceiling of ground floor would slowly wear out, needing to replace the whole ceiling!

Don't know what to do.

White misty patches on old blocked chimney breast walls?

I'm really hoping someone can help me!
I live in a 100 year old house, and in my bedroom I have an old chimney breast, which just looks like normal walls now. I've only lived here for 2.5 years, but since I've been here a large, white misty patch has appeared at the top of the walls. I wiped it over with some tissue around a year ago to see what it was, and the tissue was wet, so it seems to be tiny water droplets. It's since come back again, worse than before.
I'm concerned because I'm having a sore throat and bad chest when I'm in my room at night, and I'm wandering if this could be the cause?
Could anyone tell me what these white patches could be? I can supply photos by email if needed. :o)

Reply to mdp gas services..........

Thanks for your answer! Yes, it is fully bricked up and plastered over. It goes down into my living room too, and it's bricked up in there as well.
I live in a rented property, it's Bournville village trust in Birmingham, so they have to fix it don't they? What sort of work will need to be done? I don't want to contact them until I'm armed with all the info I need, as i think they'll try to fob me off with just painting something on the wall.

We have patches of damp on joining walls of 2 rooms upstairs by the ceiling, and rather than go in the loft to see if there's a problem, they just painted stuff over it. I'm sure this house is full of some sort of damp or mould!!!

removing a chimney breast without removing the stack

I would like to remove the chimney breasts in my house to create more internal space.

The issue is, however, that the house is semi-detached and the chimney stack is shared with adjoining neighbour. The easiest course of action would be to remove the chimney stack on both sides, but despite the fact that the fireplaces are permanently unused and blocked in my neighbour's house she will not give permission for me to remove her side of the chimney stack (I'm willing to pay 100% of the cost), no matter how much I try to persuade her of the long-term maintenance benefits of getting rid of it.

I was wondering, therefore, is it a reasonably simple job to support a chimney stack where the breast beneath it has been removed? Or am I letting myself into a bit of a 'mare?

(I am aware I'll have to submit a party wall notice in any event).

UPDATE: thank you for the replies. Just to add, I am getting a loft conversion done at the same time, and would therefore like to remove the chimney breast in the loft as well. Would it still be possible to support the chimney stack in these circumstances?

Chimeny Stack repair and installing open fire

Hi there,

I moved into a 1930s semi-detached house last year, and we have done a fair bit of work on the property. We have had several workmen, and our buildings report flag up the need to repair our chimney stack. Currently the chimney is not in use, and when we moved in there was just a chest of drawers in front of the opening- no fire place.

We would like install a fireplace which will be an working open fire, but we are aware of the poor condition of the chimney stack.

Can anyone tell me the best way to go about it? Do I get the chimney repaired first, then the fire place fitted?
Or is there any other procedures that need carrying out too, before any fire place is fitted, as we do not know the last time that the fire place was used?



Does my chimney need sweeping if I am having a new flue installed for my wood burner?

I have purchased an old house. It has a wood burner but requires a new flue. My home insurance has stated that I need to have my chimney swept once a year but my builder has told me that, as he is installing a new flue, it will not be required this year. I cannot argue what I don't understand so would appreciate some guidance on this subject

I have no intention of using my chimney again, What do I need to do to block it up permanently?

We have a sixties house with the chimney breast built on the outside. We want to move the fireplace 6 foot over in the lounge as we are extending it.

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