Is it necessary to drill the exhaust holes first when installing a split-type integrated range hood?

Mar 14, 2026 PipesB2B Marketplace
One: Is installing the exhaust port the first step when installing a split-type integrated range hood?The exhaust vent for a split type integrated range hood is typically installed before the integrated range hood is installed, which facilitates subsequen

One: Is installing the exhaust port the first step when installing a split-type integrated range hood?

The exhaust vent for a split type integrated range hood is typically installed before the integrated range hood is installed, which facilitates subsequent installation and use.

Before drilling, it is essential to determine the exact location. The distance between the exhaust outlet of a built-in range and the wall should generally be between 30 centimeters and 2 meters. The size of the holes to be drilled for split-type built-in ranges should be determined based on the size of the range hood pipe. Different types of pipes have different specifications. The height of the exhaust hole is typically around 2 meters, and the diameter is between 15 centimeters and 20 centimeters. Regular built-in ranges have specified dimensions, and these should be followed.

Typically, cabinet heights and widths range from 60cm and 45cm, respectively. The extraction hole is usually created before installing the integrated hob, which means that this height needs to be pre-planned to facilitate the installation of the cabinets.

Two. important considerations when installing exhaust vents in a split integrated kitchen range.

1、The drilling location must be correct.

First, when possible, position the flue so that it runs through the ceiling, which will save space for cabinets. When the flue runs through the ceiling, a height of approximately 20 centimeters (typically a flue diameter of 15cm-20cm) is required to accommodate the flue. It is recommended to position the opening 1 centimeter away from the edge of the ceiling.

2、The hole size must be accurate.

Please note that the hole diameter should be determined based on the diameter of the exhaust pipe you have chosen. Before drilling, please contact the exhaust pipe supplier to confirm the diameter of the pipe. The hole diameter should be 1-2 centimeters larger than the diameter of the pipe. This extra space is typically used for applying sealant. If the hole is too small, it may create a problem during installation, as there will not be enough space for applying sealant around the pipe.

3、The openings should be uniformly spaced.

The flue openings should be cut as uniformly as possible, and the cut edges should be as complete as possible. Incomplete or excessively large openings can make subsequent repairs and maintenance difficult. We recommend applying tiles around the flue openings after cutting. This will create a stronger and more durable flue, extending its lifespan.

4、Pay attention to the drilling angle.

When installing a freestanding cooktop, if additional holes need to be drilled, it is recommended to use a water drill instead of a traditional masonry drill. However, the holes should not be drilled horizontally; instead, they should be drilled at a slight downward angle to prevent rainwater from flowing back.

5、Please ensure that the area around the flue is properly covered with tile.

Due to the thinness of the flue wall, applying tiles will create a stronger and more durable surface. Furthermore, it will also facilitate the application of expanding foam during subsequent pipe installations and improve sealing performance.

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