How Close Can a Diesel Generator Be To a Building?

Diesel generators are often used as a backup power source for buildings. But how close can they be to the building? The answer depends on several factors, including the size of the diesel generator and the type of fuel it uses. Keep reading to find out more.

How far does a generator need to be from a building?

Building standards, noise, and safety restrictions all factor into the ultimate distance. Smaller diesel generators can be located closer to buildings, while larger ones should be farther away.

Ideally, generators should be at least 20 feet away from the home. The generator should have a clearance of 36 inches from the sides and front. This includes anything from bushes to trees. Any structure, overhang, or wall projections shall have at least a 48-inch clearance from the ceiling’s apex.

How far does a standby generator have to be away from a house?

Between the gas and electricity meters, standby generators should be at least 18 inches away from the home and at least 5 feet away from doors and windows.

How much space is needed around a generator?

Generators need 18 inches (1.5 feet) from the house. Open windows and doors at least 60 inches tall to allow for adequate ventilation. A service area of 36 inches (3 feet) in front of the generator

Where is the emergency generator located in a Building?

A generator will be placed in or near the electrical room in your building. Your generator should be placed as near to your house as feasible in order to reduce the length of the conduit. When the generator has an ATS, it is usually located in the control room.

How close can a generator be to a transformer?

There must be a minimum of 20 feet of distance between APS electrical facilities in outdoor locations where fire or explosion hazards may exist before separation or clearance is necessary.

Related Questions and Answers

What is the safe distance between the diesel tank and generator?

The point of ignition should be at least three meters away from the reservoir’s wall. The reservoir wall shall be no closer than (1.5 meters) from the public route, and the reservoir equipment should be no closer than (3 meters).

What is the minimum distance between dry-type transformers?

When installing an EE Type Ventilated Dry Type Transformer, the space between the ventilation aperture and any wall or other impediments must be at least 3 inches wide.

What is the minimum clearance between the transformer and walls?

When it comes to transformers and walls, how much space should there be between them? Unless the transformer is built for wall installation and installed in accordance with the manufacturer, it should be placed at least 12 to 18 inches away from walls and other impediments that could restrict free air circulation through and around each unit.

How does a diesel generator run?

This video presentation should help:

What size generators do hospitals use?

For extremely significant operations, you may want to consider a hospital diesel generator as one of the most powerful solutions. The massive 14,040 kW output of these generators allows them to power a wide range of heavy machinery. They’re designed to the highest standards, and they’re also quite efficient and use very little gasoline.

What will a 3500-watt generator run?

It’s possible to operate a number of appliances on a 3500-watt generator, but it’s unlikely to be able to power the whole home at once. A 3500-watt generator can easily power a refrigerator, lights, chargers, laptops, and a television in the majority of households.

Can someone steal a Generac?

Generators are vulnerable to theft and damage due to vandalism. A well-motivated and skilled thief may nevertheless target even massive industrial generators that seem to be impenetrable. Vandalism may do significant financial harm to any generating.

How close can a generator be to a gas meter?

(i.e., open flames, electrical panels, switches, and meters)” must be kept at least three feet (0.9 meters) away from the gas meter/regulation installation.

How much propane does a whole house generator use per hour?

How much propane is used by a whole-house generator? This may range from 2 to 3 gallons each hour, depending on the amount of power being drawn and the generator’s size. With a 20-kW generator and a 500-gallon tank that carries 400 gallons of propane, a full tank would last around five to six days.

How long can diesel fuel be stored in a tank?

Diesel fuel can be stored in a tank for a period of six weeks to twelve weeks.

Can you fill a diesel generator while it is running?

Do not add gasoline to the engine when it is running or hot. Once the generator or engine has cooled down fully, fuel may be added. In order to avoid the risk of gasoline fumes starting a blaze, never keep fuel in a tank.

Do transformers require working space?

Certain extra space between the transformer and the wall may be needed by some building rules, so be sure you have enough workspace in front of the transformer.


The “required generator setback” is the distance from a diesel generator to a building. The distance is measured in feet and depends on your state’s unique regulations. The most important reason for this is the safety of the occupants of the building.

NEXT UP: What Are the Components of a Whole Home Generator?

Related Tags

  • required generator clearances
  • diesel generator installation requirements
  • cummins generator clearance requirements
  • backup generator regulations
  • emergency diesel generator fire protection
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James Sylvester
About James Sylvester

James S. Sylvester is an experienced OSHA Safety Supervisor with years of experience in the construction and oil & gas industries. He focuses on workplace safety, occupational health and safety systems. Learn more about James' background here

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