Published at Saturday, September 15th, 2018 - 21:21:14 PM. Fireplace. By Fanny Ungar.
Ventless gas logs are designed to be used indoors and have several safety features that make them safe inside your home. Manufacturers of ventless gas logs have a limit to the amount of BTU’s burned which limits the size of most unvented gas log burners to 30". The size of a firebox that would comfortably hold a 30" gas burner is 42" to 48" which is still a large fireplace. A standing pilot assembly stays lit and heat is tracked with a thermocouple. If the flames go out for any reason, the thermocouple cools and gas stops at the valve. Oxygen depletion sensors are also attached to the gas valve to ensure the flames do not burn up so much oxygen in the house that unsafe conditions are created.
This said however, in any wood burning fireplace it is vital to use the right kind of wood that is cut to a convenient size. Hardwoods such as oak or fruitwood are the best option as they give off the most heat. Softwoods such as birch give off a good heat but tend to be consumed pretty quickly, while pine contains a lot of spark forming resin that can spit all over your floor or rug. Ideally, logs should measure between 9 and 14 inches long although it doesn’t hurt to use a couple of larger logs on your fire to give it a bit of character. Only ever use seasoned wood in your fireplace. If you try to burn green wood the heat produced by combustion must dry the wood before it will burn and you risk a buildup of creosote in your chimney which creates an imminent fire hazard. In addition by using well seasoned wood you will you get a much hotter fire; thus creating more heat for your home. It is worth bearing in mind that all wood for burning should be seasoned for a minimum of six months and stored under cover, so it is best to buy and stack firewood well in advance of the coldest months.
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