What’s is a firestop

[Old Account]

hi guys,

I am going to install a boiler in a council flat and the property housing association asked to put firestops in when I go through walls.

Could any one of you tell me what sort of firestops these people talk about? I know when going through walls you will need to sleeve the pipes of non combustible material and have an annular space. Also too, one side should be sealed with a non combustible material which could be either silicone or high temperature sealant.

They have ask many questions in regards of the installation I’m going to do.

Kind regards,

Ron

 

[Scott_D]

The flue or gas pipes?

 

[Old Account]

The flue or gas pipes?

Thanks for coming back to me.
They mean Gas pipes. However, they mentioned due to the glenfell tower they are more devoted to check its property done

 

[ShaunCorbs]

its a fire seal eg fire cant pass between each floor or each flat etc

depending on what your sealing

Firestop and Fire Protection Systems - Hilti United Kingdom

confirm with hilti and building control but this should be what there looking for

 

[Old Account]

its a fire seal eg fire cant pass between each floor or each flat etc

depending on what your sealing

Firestop and Fire Protection Systems - Hilti United Kingdom

confirm with hilti and building control but this should be what there looking for

They only asked me to put firestops when going through a wall. I’m going with one gas pipe through a thin wall. The boiler will be installed in a cupboard but will need high and low level vent ... will just use the fire mastic as a firestop.

Thank you for the link

 

[ShaunCorbs]

Is the wall a fire wall ?

Also why a high and low vent

 

[Old Account]

Is the wall a fire wall ?

Also why a high and low vent

It’s a wall between kitchen and the hallway cupboard. I got told when installing boiler it will need a high and low level vent due to overheating. It’s a small tight cupboard though.

 

[ShaunCorbs]

What boiler ?

And where's the flue going ?

 

[Old Account]

What boiler ?

And where's the flue going ?

From an old back boiler which sits inside the chimney to convert to a Combination boiler - ( Vaillant ). The bathroom needs to be re plumb slightly too as it’s currently connected to the tanks.

The flue is going straight outside with a plume kit and guard.

 

[ShaunCorbs]

How you going to fire stop the flue hole

I think that's the hole they want sealing

 

[Harvest Fields]

How you going to fire stop the flue hole

I think that's the hole they want sealing

And as far as I am aware. If the boiler clearances are met you shouldn’t need the vents high and low.

 

[ShaunCorbs]

And as far as I am aware. If the boiler clearances are met you shouldn’t need the vents high and low.

Correct unless mis state they need it, haven't seen one yet

 

[Scott_D]

Why not ask for their approved method?
Save you guessing

 

[Old Account]

How you going to fire stop the flue hole

I think that's the hole they want sealing

The flue hole I said easy is right next to the entrance door. That’s why I am going to use a plume kit and a flue guard. I am going to seal it as usual with sand cement mix and bricks. What they mean is the gas pipe through the wall which we already talked about.. I will use the Hilti high temp sealant.

 

[Old Account]

And as far as I am aware. If the boiler clearances are met you shouldn’t need the vents high and low.

It’s for cooling purposes. It definitely needs vents for cooling purposes as the cupboard is relatively small

 

[Old Account]

Why not ask for their approved method?
Save you guessing

I did, and all they said was I should know as a gas safe engineer lovely help here in England

 

[ShaunCorbs]

The flue hole I said easy is right next to the entrance door. That’s why I am going to use a plume kit and a flue guard. I am going to seal it as usual with sand cement mix and bricks. What they mean is the gas pipe through the wall which we already talked about.. I will use the Hilti high temp sealant.

What about inside

And a plumb kit doesn't allow you to go less than 300mm to an opening it's just for nuisance

 

[ShaunCorbs]

It’s for cooling purposes. It definitely needs vents for cooling purposes as the cupboard is relatively small

What do mi say about ventilation for cooling

 

[Old Account]

What about inside

And a plumb kit doesn't allow you to go less than 300mm to an opening it's just for nuisance

I know! But still need one and a guard.

 

[Old Account]

What do mi say about ventilation for cooling

How do I know. Haven’t bought the boiler yet. Will call Vaillant when it’s time ... I’m pretty sure I’ll need cooling vents

 

[ShaunCorbs]

How do I know. Haven’t bought the boiler yet. Will call Vaillant when it’s time . I’m pretty sure I’ll need cooling vents

Check out the manufacturer instructions there all on the net these days or ask @king of pipes @Harvest Fields

 

[Old Account]

Check out the manufacturer instructions there all on the net these days or ask @king of pipes @Harvest Fields

I know I can find them. The customer is indecisive in terms of boiler make. However, ones I know what brand she wants I will make sure it’s complaint. If not, I will come on here as usual and will ask you guys. Dont misunderstand me, I am not taking it for granted I really truly appreciate it that you all are so helpful.

 

[Harvest Fields]

Check out the manufacturer instructions there all on the net these days or ask @king of pipes @Harvest Fields

Vaillant states no compartment vents needed on their room sealed domestic appliances in a compartment (as far as I am aware).