Do you need a room vent for gas fireplaces

So this is a tricky question we were asked today by a customer about whether the gas fireplace she is looking at ordering requires a room vent for the installation.
Now, basically, most of our arched and tiled fireplaces do not require additional room vents for them to work correctly and, more importantly, to be safe to use.
The requirement is that the gas fire supplied should be under 7KW INPUT and anything over that will require additional ventilation. If you choose an ordinary arched or tiled fireplace, most of them are OK, but we do have models such as the Tradition which have large gas fires that will require additional room ventilation to ensure safe usage.
It does state on the boxes and in the instructions the requirement for a room vent, so if you are unsure before buying a fireplace or stove please contact us, and we can advise you correctly.
So the customer has now ordered a Jubilee and Brompton Limestone package for gas use and is very happy it does not require a room vent.
We stock the Nuflame Gas fires for use in all our fireplaces. They make a great focal point.