and a heat exchanger that takes hot water from the engine cooling system and uses it to heat the water in the unit

Trochoid Type Cam-Driven Oil Pump Alternator 12V 145W 10A Cooling System Water-Cooled Saltwater Rated YES Gear Ratio 2

For replacement lenses

Resists engine exhaust

Thread size 1/4-18"npt Hex head wrench size 5/8"

Quick Battery Isolator 120A Black VHF and a heat exchanger thatA range of battery isolators with varying Amp ratings, with removable and fixed key options Item Attributes Part No QKS12NB Product Code FDS12NB00000A00 Unit of Measure EACH Minimum Order 1 Colour Material Black Height 90 MM Length 142 MM Maximum Current Continuous Operation 120 A Removable Key Yes Voltage 24 V