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[tidla]

i know there are various trades on here, tried some of the forums to no avail (some of the bickering that goes on!)

so here goes.
after a bathroom overhaul with a newly fitted extractor fan combined with next doors new coal fire i noticed strange smells in the living room.
initial spill test proved nothing out of the ordinary, however with the fans on thats a different story.

need it sorting asap for obvious reasons.

so for a 6.9kw gas fire,and two extraction fans, how much air flow without being ott do i need?

(6000mm trickle vents are fitted to each room)

many thanks

[Taxi_Driver]

i know there are various trades on here, tried some of the forums to no avail (some of the bickering that goes on!)

so here goes.
after a bathroom overhaul with a newly fitted extractor fan combined with next doors new coal fire i noticed strange smells in the living room.
initial spill test proved nothing out of the ordinary, however with the fans on thats a different story.

need it sorting asap for obvious reasons.

so for a 6.9kw gas fire,and two extraction fans, how much air flow without being ott do i need?

(6000mm trickle vents are fitted to each room)

many thanks

Sorry m8.....and i know ive had a glass of vino.....but this doesnt make sense to me.....how i read it...

You've had a new bathroom fitted...with an extractor fan.
Next door neighbour has a new coal fire...
Your living room smells funny...
You now have more than one fan? in the bathroom??
Now you have a gas fire?

Soz, prob me just being thick!

[Vamps]

I was a bit lost as well, however if I get the just right you have a gas fire.......

We have a Carbon Monoxide alarm fitted in the lounge, removes all doubt....

[tidla]

not big on typing!

im sure a gas fitter will get the jist of it.

second fan is in the kitchen since moving in.

carbon tester fitted.

next doors coal fire is the smell.

(my fingers hurt already)

[Kevin Wood]

not big on typing!

im sure a gas fitter will get the jist of it.

second fan is in the kitchen since moving in.

carbon tester fitted.

next doors coal fire is the smell.

(my fingers hurt already)

So you're smelling the coal fire when the fans are on?

Do you know how the smell is getting in? Coming down an adjacent or shared chimney perhaps?

You need some ventilation into the areas where the fans are if it's creating a draught down the chimney - otherwise, find out where the smoke is getting in, as it could be the flue is leaking, guess.

Kevin

[tidla]

not big on typing!

im sure a gas fitter will get the jist of it.

second fan is in the kitchen since moving in.

carbon tester fitted.

next doors coal fire is the smell.

(my fingers hurt already)

So you're smelling the coal fire when the fans are on?

Do you know how the smell is getting in? Coming down an adjacent or shared chimney perhaps?

You need some ventilation into the areas where the fans are if it's creating a draught down the chimney - otherwise, find out where the smoke is getting in, as it could be the flue is leaking, guess.

Kevin

chimneys were at fault, now rectified with a flue liner.

the smell of the coal is being drawn down my gas fire flue when fans are on (negative pressure)
kitchen and bathroom have trickle vents (6000mm)

so does the living room, but not enough i recon?

my flue is ok, with no fans on.

[Kevin Wood]

I'm no gas fitter but it does sound like you need extra ventilation in the room with the gas fire if you're getting reverse flow down the flue under any circumstances. It goes without saying that it could be dangerous in it's current state.

Kevin

[tidla]

spot on there kev.

just need to get the calcs right as to much air flow is just a draft.

insulate your house, then poke some holes in it!

[Marks DTM Calib]

Lol, and you expect your avergae gas fitter to know the calcs, they would just read the info for the fire from the installation manual!

The typical need is for a 100mm2 vent setup but, some fires require less, some more.

[Marks DTM Calib]

I should add that if you have a gas stove in the kitchen, then you should also have ventilation for that.

And that window trickle vents dont count towards the gas rules as they can be closed.......