4" ventilation grill

[NozSpark]

As part of a job I've got to price an extractor fan,, that's the easy part!!

the problem is that I am unable to access the outside of the wall that it's venting through!!!

Now I have seen a wall duct/grill for this situation, but I can't remember where and I'm not having much joy Googling it!

Anyone??

 

[Apache]

Just a grille?

http://www.screwfix.com/prods/80775/Heating-Cooling/Ducting/MapVent-Circle-White-Louvre-Vent

 

[NozSpark]

It's one that you push through from the inside when you have no access from the outside!!

sort of similar to a boiler flue.

 

[Lurch]

Stadium do some ventilation products, some of which are installable from the inside. Their website is somewhat not very good so maybe give them a bell.

BM 419 UFC is the 127mm one, I'm sure they do other sizes as well, or similar stuff in other sizes.

 

[300TDI]

In the past i have fitted these if there were 2 houses bulit close together so you could not get a ladder up

Silicone or gripfill around the grill

Drop a string through the hole from the inside to the outside

Tie the string to the grill, then pull up from the inside

Once its up, hold it in place for a short while and it will stick

Job done

Although in your case you may have no access at all, just a thought

Carl

 

[NozSpark]

Carl,

Done that myself plenty of times,,,,

But in this case I do not have access to the other side... Steep banked storm drain!!!!!

 

[NozSpark]

I've had another look tonight and found this

I think it's what I'm after

 

[maccarooni]

I've had another look tonight and found thisI think it's what I'm after

How do you get the black rubber seal on if the flue is the same size as the hole ?

 

[NozSpark]

How do you get the black rubber seal on if the flue is the same size as the hole ?

Haven't a clue,,

I guess that the duct is less than 4" and the sealing ring is a snug 4" fit..

unfortunately I can't find any info for this, even on the Manrose site! headbang

 

[maccarooni]

Carls idea sounds like a good and viable one.

Although you cant get access because of steep bank etc. However if the where another flat above / below you could charm your way in,,,smooth talk the occupant and chuck your vent through their window,,,lol

Macca

good luck with this one

 

[NozSpark]

It's a single storey commercial building!! with no opening windows near where the vent will be:_| :_|

I think I'll be going with the "push through" vent

 

[maccarooni]

can you reach it from the roof.

 

[NozSpark]

It's a tiled, ridge roof... not flat!!

 

[maccarooni]

you sure know how to pick em......

Roof ladder?

IT CAN BE DONE.......

YOU CAN DO IT...

You must believe this......

Macca

good luck with it

 

[tom1]

you sure know how to pick em......Roof ladder?

IT CAN BE DONE.......

YOU CAN DO IT...

You must believe this......

Macca

good luck with it

just dont fall

 

[NozSpark]

FFS

that push through vent will only cost

 

[Lurch]

FFSthat push through vent will only cost

 

[NozSpark]

Have you fitted one of these before Stuart??

Are they really that easy??

 

[Lurch]

Have you fitted one of these before Stuart??Are they really that easy??

Not fitted those exact ones before but I've fitted similar style items. As long as you core drill a tidy hole of the exact diameter that it says you should then they work as expected.

Might take a couple of goes at shoving it in and out to get the optimum position for the rubber seal, and sometimes cable ties and tape come into the equation, but in general, yes it's as easy as that.