NordicStove Models make excellent heating and cooking stoves. The Heaters will give you years of trouble-free service. No Electricity is necessary. With NordicStove you have five (5) sizes to choose from so you will be able to find the size that meets your heating needs and thus, is most efficient. Some models have water coils and can be used to make hot water or be used for dry, comfortable hydronic baseboard heating on your boat!