This morning’s cold weather coincided with a delivery of wood chip for the biomass boiler. A load of 23 cubic metres keeps the barn warm and heats all the hot water we use in a winter fortnight. It’s a delicious kind of heat, generated by seasoned wood from local managed woodland. There’s a pleasure to be had in the local self sufficiency of the system –those trees that are felled are replanted, and the woodland is actively managed as a resource. The boiler here is a bit of a beast at 90kW, but Cumbria Woodlands has an excellent guide to using wood for fuel in house.