Gravity Fed Boilers

These are for use with Gravity Feed Boilers. Anthracite Grains are pieces of high qualtiy anthracite. They are smaller in size compared to Anthracite Beans but still give the same level of heat output and ash content.

These are for use with Gravity Feed Boilers. Anthracite Beans are large pieces of high quality anthracite that have a high heat output along with a low ash content.