Pellet Mill | Pellet Press | Wood Pellet Machine for Sale
2019-6-27 · The data is updated on February 2016. From the above comparison, we can come see that coal is the cheapest fuel, but it harms the environment; natural gas costs cheaper than wood pellets, but it is non-renewable resource and not every place has natural gas; hardwood is also cheaper, but its burning efficiency is low and it does take much room to store because of its low density.
