Are Generators Noisy? How to Reduce Noise & Choose a Soundproof Generator for Hotels & Restaurants

Are Generators Noisy? Understanding Noise Levels Before You Choose

One of the top concerns for hotels, resorts, restaurants, and beach clubs in Phuket, Phang Nga, and Krabi when using a generator is noise that may disturb guests and the venue's atmosphere. Standard open-type generators are relatively loud, but today there are soundproof (silent type) generators designed specifically to reduce noise.

In this article, the Namsang Generator team explains how loud a generator is, measured in decibels (dB), along with ways to reduce noise and how to choose a soundproof model suitable for service businesses.

How Many Decibels (dB) Is a Generator?

Generator noise is measured in decibels (dB) at a reference distance, typically 7 meters. The higher the dB, the louder the sound. The table below compares approximate noise levels for reference.

As you can see, soundproof units have noise levels close to normal conversation or road traffic, while open-type units are much louder, making them more suitable for construction or open areas than service venues.

What Is a Soundproof Generator?

A soundproof (silent type) generator is a power generator installed inside a canopy lined with sound-absorbing and insulating materials, with an exhaust system and ventilation designed to reduce noise. This makes it suitable for use in quiet areas such as hotels, restaurants, events, and residential communities.

How to Reduce Generator Noise for Hotels and Restaurants

1. Choose a Soundproof Unit From the Start

The most effective method is to use a soundproof unit from the beginning, as it is designed to be significantly quieter than open units.

2. Position It Away From Guest Areas

Install the unit away from guest rooms, dining tables, or lounge areas, and direct the exhaust away from the building to reduce noise and fumes.

3. Build an Acoustic Barrier

Building a sound barrier or using sound-absorbing panels around the unit further reduces reflected noise, while leaving enough ventilation.

4. Place It on Anti-Vibration Mounts

Use anti-vibration mounts to reduce noise and vibration transmitted through the floor.

5. Maintain the Generator Regularly

A well-maintained unit with no loose parts runs quieter and produces less abnormal noise.

How to Choose a Soundproof Generator for Your Business

• Choose a kVA size that matches your actual load, not too small or too large, for efficiency and appropriate noise.
• Check the noise level (dB) listed in the spec; the lower, the quieter.
• Choose standard brands such as AIRMAN, DENYO, CUMMINS, which design soundproof canopies well.
• Consider after-sales service and a technical team available 24 hours.
• For occasional use, renting a soundproof unit may be more cost-effective than buying.

Frequently Asked Questions (FAQ)

How much quieter is a soundproof generator than a standard one?

Generally, a soundproof unit reduces noise by about 15-25 dB compared to an open unit of the same power, which is a clearly noticeable difference.

What size should a hotel or restaurant choose?

It depends on the building's total electrical load. We recommend consulting an engineering team to calculate the appropriate kVA size to avoid both insufficient power and excessive noise.

Can I rent a soundproof generator?

Yes. Namsang Generator offers soundproof generator rental with installation and technician support, ideal for events, parties, and backup use in hotels and restaurants.

Consult Soundproof Generator Experts at Namsang Generator Phuket

Namsang Generator Bangkok (Phuket) Co., Ltd. provides rental, sales, and maintenance of soundproof generators from 10-1100kVA, covering Phuket, Phang Nga, and Krabi, with a technical team of over 20 years of experience and 24-hour hotline service.

To rent or buy a soundproof generator for your hotel or restaurant, contact us at Tel 076-264-353, 061-953-6416 or Line OA: @namsangnsg