which type of generator set is more suitable for you, air-cooled or water-cooled diesel gen-set?

When choosing a diesel generator set, in addition to considering the different types of engines and brands, you should also consider which cooling ways to choose. Cooling is very important for generators as and it prevents overheating.

First, from a usage perspective, an engine equipped with an air-cooled diesel generator set uses a fan to cool the engine by passing air through the engine. For home users and household appliance loads, air-cooled generator sets are recommended, and the price is also affordable. During a power outage, air-cooled diesel generator sets can still power homes and small appliances, so they are ideal backup systems. They can also act as the main generator set if the electrical load is not too large. Gen-sets with air-cooled engines are typically used for smaller workloads and for shorter periods of time, making them ideal for non-industrial or low demanding work environments.

On the other hand, water-cooled engines contain a closed radiator system for cooling. Whereas, water-cooled engines tend to be used for higher loads or larger kilowat gen-sets, as higher loads require a larger engine for higher power output and to reduce the heat generated by the larger engine. The bigger the engine, the longer it takes to cool down. Common users of water-cooled diesel generator sets include shopping mall, restaurants, office building and more industrial like factory or big project, large buildings and applications.

Secondly, from the perspective of after-sales maintenance, air-cooled generator set maintenance is easier. The cooling process of the water-cooled engine is more complicated, so the generator set needs to be monitored by someone. In addition to checking antifreeze levels, you must also make sure the coolant is running properly, which can mean checking wiring and connections, as well as checking for potential leaks. Maintenance of water-cooled engines is also more frequent. But for the efficiency and power of a water-cooled engine, the extra maintenance is worth it. World-famous water cooled diesel engine includes Perkins, Cummins, Deutz, Doosan, Mitsubishi, etc, which are widely used in industrial areas.