Examines heating and cooling systems on boats and explains the considerable differences between the various systems available, so that owners can choose the right one for their boat. The book answers such questions as: air or water heating?; fuelled by diesel, paraffin, petrol or gas?; what is practical for small craft?; is an absorption fridge the best type?; what system cools best and is most economical?; is it possible to install your own system? All these and many more questions are answered in this book.