I am planning to buy a 20 KVA Diesel Generator. Both the vendors are confusing me over Air cooled and Liquid cooled engines. Can anyone help me to understand the pros and cons of the said engines for a commercial requirement.
At 20 KVA I'm thinking the air cooled set is using a Deutz, Want some advice? Avoid it like the plague! First off there noisy, and if you don't like replacing timing belts and head gaskets these are not the engines for you, As a heavy diesel equipment mechanic I seriously hate these engines, Lucky for me the outfit I work for now wont buy any piece of equipment equipped with a Deutz engine, So do yourself a favor and find a Genset with a Kubota or Isuzu in it, there not dumb enough to use an air cooled design, actually just buy a Multiquip and save yourself the headaches and repair bills.
Air cooled: bigger, noisier, hotter, dirtier, simpler to maintain, more expensive, no freezing risk, burn more engine oil. Liquid-cooled: all the opposite than above.
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Air cooled is simpler and cheaper. Water cooled can be longer lasting. If you planned on waste heat recovery , water cooled would make that easier.
