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Soundproof vs Open Generator: Which Should You Buy?

A soundproof canopy makes a generator quieter and protects it from weather, but it costs more and restricts access. An open set is cheaper and easier to cool and service, but it is loud and exposed.

Industrial diesel generator set in an outdoor enclosure
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Soundproof Canopy

  • Much lower noise, which matters on estates, hotels, offices and hospitals
  • Weather protection for the engine, alternator and panel
  • Some security against theft and tampering
  • A higher purchase price than an open set of the same size

Open Set

  • Lower purchase price
  • Easier access for service and inspection
  • Needs a plant room or shelter for weather and noise
  • Often chosen when the set will sit in its own building

How to Decide

  • Where will the set sit, and how close are people?
  • Is there a plant room with proper ventilation and an acoustic design?
  • How often will the set run, and for how long?
  • What local noise rules apply?

Check on Soundproof Sets

  • Cooling and airflow inside the canopy at full load
  • Access doors for daily checks and servicing
  • Fuel tank size and refuelling arrangements
  • Quality of the acoustic lining and corrosion protection

Frequently Asked Questions

Does a soundproof canopy make the generator hotter?

It can if airflow is poorly designed, so ask for the cooling capability at your site temperature and check the canopy is designed for the set.

Is a soundproof generator worth the extra cost?

If the set sits near people or outdoors, usually yes. If it will sit in a proper plant room, an open set may be enough.

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