All gas fires should be installed by an accredited tradesman in accordance with local codes if any or to ANSI Z223.1 – 1992 and NFPA 54(88) and the requirements listed in the owners manual. All wood heater installations should be carried out by a licensed tradesman in accordance with AS 2918.
Gas log or pebble fires come in many variations so it is important to consult an expert to ensure that the gas fire you buy will do what you want and can be flued to suit your requirements. Open style gas fireplaces certainly have the ambience factor but can be low on the heating scale so if you are after more than just good looks you may want to consider a sealed unit as these are generally more efficient. The sealed or glass fronted gas fires also vary substantially in features and fllueing for example there are B vent ( traditionally flued up through the roof or out the wall at 45 degrees ), DV or direct vent and power flued units. The power flue systems are usually the most efficient ( although the flame pattern tends to suffer ) and like the DV fires they bring the combustion air in from outside and expel the emissions back outside – a two way flue system that allows for the flue to terminate on the outside of an external wall instead of having to flue through the roof or eve.