If you have a flu fired do you also need an airvent

Yes you need an air vent with a stove, the main reason is to provide air source required for fire, promote draw, second to comply with building regs and to prevent the possible build up of toxic gases.

There should be sufficient ventilation into the room to have such a fire. The log burner will have vents so that the fire can draw air in to burn. For a fire to burn you need heat, oxygen and fuel. The heat allows the wood to combust, the oxygen makes the wood burn rather than smolder and the fuel is the wood you put on the fire. Wood starts to smolder at 230 degrees C, add oxygen and you get flames... The log burner is therefore not a blockage and nor is the top of the flue as that is where the fumes get out. If there was a blockage at the bottom, (the burner) it would not burn due to no oxygen. If it was blocked at the top, (the flue) it would burn until the room filled with smoke and then there would not be any oxygen left... *************************************************************** OK, this is usually sealed top and bottom but there has never been an issue in my experience regarding the air or any dampness. (Personally I am not always convinced that a metal flue is required, solid fuel burners and open fires are rarely hot enough to cause any damage to what the chimney is built of and in years gone by the warmth from the chimney breast was able to warm other rooms. My guess is that someone in health and safety made a comment that something could happen and so we all now get metal flues. My previous house was over 200 years old and never had a metal flue put in until a few days after we left...) *************************************************************** Always happy to help and advise! If you need any help with anything, even just having a developer on hand when you look at a property, I will be happy to cast a professional eye over the place and offer advice and suggestions.

Hi, Just to make sure no mistakes are made. 1- Part J Building regs require provision for 550mm per KW above 5 or 550mm for each KW depending on the property being built prior to or since 2008. 2- This is so that complete combustion can occur. 3- incomplete combustion is not good nor is carbon monoxide.