I have an old stand alone taylors drip fed heater You can use diesel or parrafin with it. Its not the usual one that is wall mounted but a round one that is floor mounted and much bigger than the wall mounted ones. Would suit 30-50 foot yacht maybe for northern climates. Its in good condition but needs the thermo couple swithch which is available from taylors or baot jumble. Its made of cast iron inner with stainless steel outer shell and fire pot. These are very good heaters once up and running £150.00 Mob 07971320651 I can post it if needed or collection from Hampton middx Joe