Advice on venting room with gas heating

Gaspode · 20-03-2009 07:04PM #1

Hi all,
My mum has been told by Bord Gais that she needs to get her living room ventilated as the boiler is in there, and there's also a gas fire she uses occasionally. There used to be a vent but when she got a conservatory built, the wall it was on was removed and the vent was never re-sited.

Since she now has little or no external wall to put a vent into, is it OK to vent the bottom of an internal door (to the front hall) and then vent to outside in the next room, at a point directly across from the door vent?

Also, any ideas how big a vent needs to be?

slavetothegrind · 20-03-2009 07:32PM

Best to vent direct from the room to outside, this is very important for the complete combustion of the gas.
If you vent as suggested a draught will result when fire is on and sure as eggs is eggs a draught excluder will be draped across the door :rolleyes:.

I would do this immediately or not use the fire until you have it done it is a significant safety issue, makes me wonder why bord gas were out to her in the first place?

A 4" vent should be fine

Gaspode · 20-03-2009 08:39PM

Bord Gais were upgrading pipes in the area, that's why they were there.
I'll need to get out there and have a good look, but there's precious little outside wall left since the conservatory went in IIRC.

DublinDilbert · 20-03-2009 09:10PM

you could try put in a core vent, like this one:-

http://www.gasproducts.co.uk/acatalog/Stadium_BM418_W_127mm_Core_Drill_Ventilator.html

from memory it needs a 5 inch hole cut in the brick/block work....

Gaspode · 20-03-2009 09:24PM

Thanks, look like I've a bit of drilling and bashing ahead of me for the weekend!

DublinDilbert · 20-03-2009 10:22PM

Gaspode wrote: »

Thanks, look like I've a bit of drilling and bashing ahead of me for the weekend!

Yea them core vents aren't bad.... i think there's a smaller one too on the web-site, but i'm not sure if it would comply with gas regulations interms of flow rate of air....

They are very easy to install, just make a whole roughly the right size, cut the tube to length, cement it in place.

Advice on venting room with gas heating

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