A generator is a major purchase and for most residential applications a quality generator will last a life time when used for standby/emergency backup. Save yourself some grief and buy only a major brand yanmar diesel generator. We do not know why people buy "off brand" engine, which you can not obtain the necessary parts, service and support. A cheap or bargin price is sometimes an expensive lesson.
Type of generator set.If your backup requirements are just occasional and you only need limited power an inexpensive generator set will meet your need. A air-cooled gas gensets could meet all your needs. If you live anywhere like Florida, East Coast or any coastal area you will need a high quality diesel generator set. Most diesel models are reliable and fuel efficient. An 1800 rpm model will provide better fuel efficiency and will have a longer life but cost more. If you buy a diesel generator set remember regular maintenance and exercising it by letting it run for a half hour, will make sure it will be ready to use when you need it.
Maintenance and repairs of yanmar diesel generators.A genset is a mechanical and electrical device that over time will need some service or parts. The generator end is the usually the first item to fail with heavy use. The insulation coatings on the windings are based on heat ratings and H is best and F is good. Some major brands manufacture their own generator ends and parts, and repair is usually only available through them. But many use off-the-shelf brands and are readily available and any repair center can service the generator end.
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