Wood pellets provide a sustainable and reliable source of heat and hot water for your home and now more than ever are a credible alternative to oil. Wood pellet boilers are clean, easy to manage, and offer the same level of control and flexibility as conventional oil and gas boilers. However, no matter how good your boiler is, it can only deliver the maximum amount of heat that the fuel can supply; it is therefore of vital importance to be sure you are using the highest quality fuel possible. There are many different grades of wood pellets available on the market, but the main quality benchmark is ENPlusA1, which is recommended by most boiler manufacturers.