传统观点认为硬木始终是壁炉燃烧更好的选择。然而，当涉及到颗粒炉，传统的观点是不准确的。硬木原木比软木原木更有效，因为硬木比软木的密度更大。但在制作木屑颗粒过程中，硬木和软木差别的缩小。Conventional wisdom suggests that hardwood is always better to burn in the fireplace. However, when it comes to pellet stoves, the conventional wisdom is less accurate. Hardwood logs are more effective than softwood logs because a length of hardwood has greater density of wood than softwood. Due to the reconstitution process of creating wood pellets, the differences between hardwood and softwood narrow.木颗粒往往作为优质木屑颗粒出售，比他们的同行软木成本更高。原因与质量不大相关。主要是因为硬木是比软木更昂贵的原材料。因此，如果需要通过碎裂硬木和其制作成木屑颗粒，以赚取利润的话，制造商必须以比软木产品更高的价格卖出硬木产品。Hardwood pellets are frequently sold as premium wood pellets at a higher cost than their softwood counterparts. The reason for this has very little to do with quality. Hardwood is a much more expensive raw material than softwood. Therefore, in order to make a profit by chipping hardwood and forming it into wood pellets, manufacturers must sell hardwood products at a higher price than softwood products.木屑颗粒产生10％-20％BTU（英国热量单位）热量。这意味着软木屑颗粒比硬木颗粒具有略高的热值。其中不同之处的原因是软木屑颗粒比硬木颗粒含有更多的汁液，这使它们燃烧更迅速。Softwood pellets produce between 10 and 20 percent more BTUs (British thermal units) per pound. This means that softwood pellets have a slightly higher heating value than hardwood pellets. The reason for the difference is that softwood pellets contain more sap than hardwood pellets, which makes them burn more quickly.洁要求和环境影响是颗粒炉所有者关心的两大问题。已经有研究将硬木颗粒的灰分含量与软木屑颗粒进行对比。该研究的结论是硬木颗粒包含约三倍灰分。虽然优质颗粒都低于1％的灰分含量，但是如果按一个漫长的冬天计算的话，这差异可能比较明显。Both cleaning requirements and environmental side effects are a concern for owners of pellet stoves. As a result, studies have been conducted concerning the ash content of hardwood pellets versus softwood pellets. The studies conclude that hardwood pellets contain about three times the ash. While premium pellets all fall below 1 percent ash content, over a long winter the difference can be significant.2009年的一个研究测试了硬木和软木颗粒之间其他潜在差异。对燃烧率、起尘量和起尘因子进行测试。研究发现，燃烧率相当。然而，起尘量和起尘因子差异极大。在低燃烧率类中，软木起尘量和起尘因子比硬木更高。然而，在更高的燃烧率类中，硬木每小时释放更大的排放，以及更大的总排放量。A 2009 study tested a number of other potential differences between hardwood and softwood pellets. The burn rate, particulate emission rate and particulate emission factor were all tested. The study found that the burn rate was comparable. However, there were drastic differences between emission rates and emission factors. At a low burn rate category, both emission rate and emission factor were higher in softwood than in hardwood. However, in higher burn rate categories, hardwood both released greater emissions per hour, and greater total emissions.