How high should the range hood be installed

When installing an oil fume purifier, the height of the equipment directly affects the purification efficiency, safety of use, and ease of maintenance. Whether it is a restaurant owner, kitchen designer, or engineering installation party, it is necessary to clarify; How high are oil fume purifiers usually installed; This core issue. This article combines industry standards with the technical experience of Guanglan purifiers to conduct in-depth analysis from three aspects: installation height specifications, influencing factors, and practical suggestions.

1、 Industry standard for installation height of oil fume purifiers

According to the "Emission Standards for Cooking Fumes in the Catering Industry" (GB 18483-2001) and the installation specifications for environmental protection equipment, the recommended installation height for cooking fume purifiers is 2.5-3.5 meters from the stove. This scope is based on the following scientific evidence:

2、 Four key factors affecting installation height

• Purification efficiency guarantee: Oil fume will diffuse during the rising process. If installed too low (such as less than 2 meters), some oil fume may not be fully collected; If it is too high (more than 4 meters), the air pressure of the equipment may be insufficient, causing oil fumes to escape.
• Safety and MaintenanceA height of 2.5-3.5 meters can prevent equipment from being directly exposed to heat sources, while also facilitating daily cleaning and maintenance.
• Compliance Requirements: In most regions, strict checks are conducted on whether the installation height of equipment meets the standards during environmental inspections, otherwise it may affect the opening permit.

3、 Practical suggestions for Guanglan purifier

As a brand that has been deeply involved in the field of oil fume purification for 15 years, Guanglan Purifier has summarized the following installation points based on a large number of engineering cases:

1. Kitchen Space Structure

   • Floor height limit: If the kitchen floor height is low (such as less than 3 meters), priority should be given to meeting the vertical distance between the equipment and the stove to avoid compressing the operating space..
   • Pipe layout: The direction of the exhaust pipe (such as horizontal or vertical) will affect the relative height between the equipment and the stove. It is necessary to ensure that the pipe has no sharp bends and reduce wind resistance..

Types and scales of stoves

• Single stove vs multi stove: When multiple stoves are concentrated in a large kitchen, the equipment needs to be higher (nearly 3.5 meters) to cover a larger range of oil fumes..
• Stove Power: High power stoves (such as commercial high flame stoves) produce more oil fume, and the equipment height needs to be appropriately raised to enhance the collection capacity..

Equipment performance parameters

• Air volume matching: Brands such as Guanglan purifiers will provide air volume recommendations based on the size of the kitchen. The larger the air volume, the higher the equipment can be installed (but within 3.5 meters).
• Purification efficiency: High efficiency models (such as Guanglan's electrostatic purifier) have a higher tolerance for installation height, but still need to follow basic specifications.

Differences in usage scenarios

• Home kitchen: Usually, the floor height is low, and it is recommended to install it at a height of 2.2-2.8 meters to balance effectiveness and space utilization..
• Commercial kitchen: Strictly follow the standard of 2.5-3.5 meters and reserve inspection ports..

4、 Common Misconceptions and Solutions

If there are no special circumstances, it is recommended to install the equipment at a distance of3 metersfrom the stove to balance efficiency and cost.

In summer or high temperature environments, the height can be appropriately lowered (2.8 meters) to enhance the collection effect.

When the pipeline length exceeds 10 meters, the equipment height (3.2-3.5 meters) needs to be increased to compensate for wind pressure loss.

• Prioritize the middle value:
• Dynamic adjustment strategy:

Reserve 50cm space above the equipment for installing rain covers (for outdoor use).

The fixed bracket needs to bear more than twice the weight of the equipment, and Guanglan Purifier provides customized bracket solutions.

• Security measures:

When installing the oil fume purifier, the height is not“ One size fits all approach; The number needs to be dynamically adjusted based on the size of the kitchen, equipment performance, and usage scenarios. With years of technological accumulation, Guanglan Purifier can provide users with a one-stop solution from selection to installation, ensuring that the equipment performs at its best in compliance. Whether it is a home kitchen or a large catering venue, following scientific installation principles is necessary to achieve the dual goals of long-term purification and safe operation.

Misconception 1: The higher the purification effect, the better

➤ Correction: Exceeding 3.5 meters can cause oil fume diffusion. According to data from Guanglan Laboratory, for every 0.5 meters increase in height, purification efficiency decreases by about 8%.

Misconception 2: The installation height can be adjusted freely

➤ Correction: Comprehensive calculation is required based on parameters such as equipment air volume and pipeline length. Guanglan provides free on-site survey services.

Misconception 3: Neglecting post maintenance space

➤ Correction: An operating space of at least 1.8 meters should be reserved below the device. The Guanglan purifier adopts a modular design and supports side maintenance.