Heat logs are manufactured logs that vary in size but are typically 6-8 inches long. They are produced by compressing finely chopped raw materials such as sawdust, straw, paper and sometimes leaves at very high rates. The quality of the log is determined by how high the compaction rate is.
When you buy heat logs from stores, it is always important to check for the HETAS quality assessed fuel logo as this guarantees they are reliable. It also ensures they aren’t made from contaminated wood wase that has been painted, treated or glued.
Quality & Consistency
Since heat logs are homogeneous, meaning they are consistent in their quality and composition, every batch you buy you are guaranteed excellent results. Logs, on the other hand, are variable in size, moisture content, density and burning characteristics.
Although logs are cheaper initially, it doesn’t mean that they are more cost-effective. In fact, heat logs have a much higher calorific value than logs, meaning that they release a larger amount of heat when completely burnt.
Because heat logs are so highly compressed, when they are heated, the fire will cause them to expand, so you need to be cautious about how many you put them on the fire or they will expand and fall out. As logs haven’t been compressed they may expand slightly but will not have the same effect.
Although logs may have an aesthetic appeal and scent, they do take up a lot of storage space. Heat logs are much easier to handle, stack and store due to them being so compact and having the same shape and size. However, their downfall is they need to be stored very carefully since they must be kept completely dry.
Heat logs are made from products that would have ended up in landfill, however, they’ve been recycled to make something new, whereas traditional logs are damaging to the natural biodiversity as this wood has been cut down to just be burnt, which could be argued as an unnecessary reason to be tearing down forests.