Chimney removal

We are having two chimneys removed that are on the verge of falling down, the fire places are not used and and all but one has already been sealed and plastered over. (2 bedroom 1 lounge)

the roof had just started to weep as the water is getting behind the render and also the cement seating around the base by the rrof is all cracked, so we decided as the chimneys are not used to remove them

My question is with sealing the final fire place will this have an effect on house hold ventilation?

The house in question is a 100 years old 3 bed detached

The boiler in the house is a condensing boiler which is flued to an outside wall

There are no gas fire places in the house

There is a 3rd chimney in the kitchen which has been sealed but we plan to fit a range cooker in the opening and then open it up for extraction?

wennners said:

My question is with sealing the final fire place will this have an effect on house hold ventilation?

Click to expand...

No.

Chimneys were / are not designed for ventilation purposes.

That's what windows are for

gday2uk said:

wennners said:

My question is with sealing the final fire place will this have an effect on house hold ventilation?

Click to expand...

No.

Chimneys were / are not designed for ventilation purposes.

That's what windows are for

Click to expand...

Chimneys are primary for flues, but the secondary function is ventilation

Blocking or removing a fireplace and the extraction they give can cause some issues if humidity levels were being balanced by the existence of the flue - eg condensation may start to form with the room.

Also blocking up a chimney can lead to condensation forming within the flue and this could leach out into the plasterwork of the chimney brest

I am going to install an air brick into each of the chimney breast that run down the out side wall this should hopefully prevent any dampness issue occurring