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Module 1 Batteries
Module 2 Wiring
Module 3 Engines
Module 4 Lightning
Module 5 DC Systems
Module 6 Electronics
Module 7 Radios
Module 8 Water
Module 9 HVAC
Module 10 AC Power

Marine-refrigeration All you need to Know

Module 109 - Heating, Ventilation, Air Conditioning and Marine-Refrigeration Systems

At the completion of this module you will understand the basics principles of refrigeration and compressors, diesel heaters, diesel water heaters, how boiler systems operate, and the basic principles of air conditioning systems, ventilation systems and how to perform basic maintenance and troubleshooting on all of the systems.


Refrigeration is always a very issue for all boats. Choosing between electric systems and eutectic on yachts also another one. Keeping food at the correct temperature is important to both health and happiness, as a happy crew travels on its stomach. There are many question that arise, the main one is electrical power consumption and engine run times. Marine Refrigeration 101 Start leaning about Marine Refrigeration here. Yacht Refrigeration 101 And to learn even more about Yacht Refrigeration continue reading here

Air Conditioning

Air conditioning on any boat is an absolute luxury. They consume a lot of power so questions arise on power generation and loads. Another important factor surrounding air conditioning is the proper selection and installation of units. In many cases they are under-rated for the area to be cooled

Diesel Heaters

For those in colder climes, a diesel heater is an essential part of boat equipment. There are some very compact and efficient systems such as those from Webasto and Eberspacher, and I have owned both.

All about marine-refrigeration and more

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