CHESNEYS Salisbury BioEthanol Stoves The Salisbury Biothanol stove sets a new level for the performance and use of Ethanol with state of the art technology in terms of safety, functionality and efficiency . Unique features include a patented combustion process that allows a burn time of 11 ½ hours without the need to re-fuel and approval for installation in rooms much smaller than those required for competing ethanol products.