What is the difference between Flueless and Flue Gas Fires?

Can anyone tell me what difference there is between having flue and flueless gas fires? I have recently removed an old gas fire from my house and now have a gap. I want to install a modern gas fire in the space, but I don’t know what difference it would be if it is flue or flueless. Is it related to the chimney pipe up to the chimney from the fire? Can anyone advise me on here, please?

Asked by Michael on 10th Mar 2019
Expert Trade Answers
Best Answer
"Yes, the chimney is the flue. Before using the flue (chimney) you should have it tested that it is in working order IF you choose a flue gas fire. The testing must be conducted by by a registered gas safe engineer, for your own safety and peace of mind. If you choose a flueless gas fire, this won’t be required if you won’t be using the flue. Flueless gas fires don’t need any flue, but do require ventilation specifically for flueless gas fires (usually 100cm or so on the outside fitting).
Any flueless gas fire will need to be installed by a gas safe engineer – again for safety and to ensure the ventilation is sufficient for the gas fire."
Answered on 10th Mar 2019 - Member since Mar 2019 - report
"Do u have a flue liner? If not best to get flueless fire"
Answered on 1st Sep 2019 - Member since Aug 2019 - report
"If you have a chimney get it checked and go for a flued"
Answered on 18th May 2019 - Member since May 2019 - report
"Seek professional help gas safe registered installer, it sounds like you are in a traditional chimney class1 we call them so normally any fire will fit BUT the chimney or flue MUST be checked if it is a chimney it may need lining."
Answered on 19th Jul 2019 - Member since Jul 2019 - report
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