Flueless fires have been discussed on this site a number of times and the advice given from Corgi Installers is to AVOID at all costs!
These fires are attractive to consumers as they are 90% efficient as opposed others which are only 70%.
As the products of combustion are not expelled up the chimney, these fires require a specific volume of ventilation to ensure their safe operation!
Flueless gas fires require correct installation and depend on :
A) Correct pipe sizing
B) Room Size
C) Ventilation
D) Gas rating checks
E) Gas Analyzing checks
F) Regular servicing
There have been a number of deaths attributed to these fires and you should bear this in mind if you are considering having one.
Further comments on these fires can be found HERE
