Adjustable vents - "not suitable for gas appliances"

thos

Hi all,

I was considering swapping my louvred wall vents for adjustable vents, but I notice a lot of them say "Not suitable for use with Gas appliances"

Does this mean not suitable for any room with has a gas appliance - fire/cooker etc? Or just not for us in directly venting a gas boiler or something?

I've have a room which isn't used very often, it has an old gas fireplaces in it, but the chimneys is now blocked off with a balloon, so is not used. Good or bad idea?

Tom

jack of all

Not suitable for use in a room containing a gas appliance. Even if the fire is unused there is the risk that a guest or future owner would use the appliance and if there is insufficient ventilation there is a risk of carbon monoxide due to air starvation.

10-10-20

The way I'd read it is if the gas appliance has been capped-off at the gas supply and is clearly not possible to light without reattaching the physical gas main, that the room may be fitted with a adjustable vent.

A balloon up the chimney is not sufficient.

dathi

https://www.boards.ie/discussion/comment/120221388#Comment_120221388

no as the chimney remains it becomes a fireplace capable of burning solid fuel the following is taken from the building regulations TGDs part J

Solid fuel burning open flue appliance with or without a throat e.g. open fire.

A permanent ventilation opening (or openings) with a total free area of at least 50% of the appliance throat opening area, or of the area of flue serving the appliance, where no throat involved, should be provided. At least 6,500 mm2 of the openings should be permanent ventilation. For description and dimensions of “throat”, see BS 8303: Part 

10-10-20

https://www.boards.ie/discussion/comment/120223295#Comment_120223295

A fair point - thanks.

thos

Thanks all