Bricked Up Fireplace No Vent

We have been told by one builder that now that the chimney breast has been bricked up we would need an air brick in it to allow ventilation and prevent damp but another builder has said that we do not need an air brick with the chimney being flued and with a cowl fastened to it and cemented in place.

Bricked up fireplace no vent.

Blocking up an unused fireplace after an old fire surround and hearth has been removed the hole in the chimney breast can be bricked in to tidy up the wall. I mentioned this to env health officer in charge of job pointing gas fires and dangerous fumes to people asleep. There is no need to remove the fireback from the fireplace although if a back boiler is fitted this should be removed once the plumbing has been isolated and disconnected. The bricks should be flush against each other except for the thin layer of cement.

Apply cement in between each brick in the same way. I did a grant job in kirklees it was in their standard spec to brick up bedroom fireplaces and insert a vent. I suggest putting a note in a plastic container within the fireplace pointing out that vent holes have been cut in the flue so they know to go look and rebrick them. I m bricking up an unused fireplace in a house about 30 years old.

With regards to the above comment if you put an air bick in the stack externally with the fireplaces still bricked up you will have more condensation problems. It had an open flame gas fire in it previously with a nasty brick fireplace. We installed a vent and when we lit a fire in the lounge smoke came out thro vent in the bedroom. Normally when i ve seen internal vents in chimneys before they ve always been in the centre which is why i was going to remove a brick from the centre and stick the vent over that.

Lay the brick on the floor of the fireplace flush with the front of the fireplace. There s no problem blocking up plastering a redundant fire place but you should ensure the chimney top is closed off to water ingress plus it is best practice to vent the flue space so as to avoid condensation forming. As far as i know the fireplace was bricked up when it was originally removed and has never been used since. Wipe away the excess and repeat with another brick.

The chimbo needs vents in each room if you re open the stack or vent it externally. Yes you will need an air brick or an air vent.