On Thu, 24 Jan 2008 20:07:31 +0000 (UTC), Ed Sirett
wrote:

On Wed, 23 Jan 2008 23:53:58 +0000, The Simpsons wrote:

Friend of mine has bought a flueless gas fire from B&Q. His corgi fitter
however says he would be reluctant to install it, even if all the
critera for room size, ventilation and use etc is satisfied. Are there
any corgi people here? If so what's your opinion of these fires. Thanks
Fred

The report linked in one of the posts says that the maximum concentration
of CO was 22ppm. This was under extreme use that nobody would normally
put the fire to, and without the ventilation that the fire requires.
22ppm would at most give you a headache after some hours (but frankly
you'd have turned the fire off and/or opened a window long before then).
Besides which these are not intended as a primary source of heat.
The rules require them to be put in relatively large rooms.

If the fires are installed in accordance with the instructions and the
regulations there should not be a problem. Many registered fitters who
feel the need to defend their careers and livings simply won't go near
open flued or flueless appliances. There is no requirement that they do
work that they do not wish to do, most have more than enough work without
taking on extra "risks" [1].

The + for flueless a
simple installation
inherent reliability
inherent high efficiency

The - a
possible odours
may aggravate condensation

[1] These risks, IMHO, are perceived rather than significant.

I assume for CO (carbon monoxide) read CO2 (carbon dioxide). I would
be surprised that a device that emitted any level of carbon monoxide
in a home would be judged as 'safe'.