Chèvrerie
How to increase the efficiency of your woodburning stove

18 kw equates to approximately 61,400 btu, will run up to 10 radiators (depending on size of radiators). Avon 18 kw cast iron back boiler multi fuel wood burning stove 2015 new model comes ready assembled in a crate all you do is bolt on the legs with the bolts supplied easy peasy.