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Sizing a Fan to a Room

To get maximum comfort and energy savings, it is necessary to choose the correct size fan for a room. Blade span is the key. A fan that is too small or too big for your room may look awkward. A fan that is too small probably will not move enough air and a fan is too big might over power the room. Hayashi ceiling fans recommends the following :-

Blade Size

Square Footage

Extension Downrods for high ceilings

Ideally, fan blades should be 7 to 8 feet from the floor for maximum cooling. For ceilings 9 feet tall or taller; use a downrod to bring the fan down to the proper height above the floor
Ceiling taller than 9 feet will require a Hayashi extension downrod. For example, a 14 foot ceiling would require a 5 foot extension downrod to position the blades 8 feet above the floor; since you need to allow one foot for the space from the top of the motor to the bottom of the switch housing.

Good Installation Practice

Before Installation
1. Read and understand the instruction
2. Inspect the contents in the box
During Installation
1. Tighten bolt/nut between motor and pipe firmly.
2. Ensure bolt/nut (rubber suspension) do not over tighten
3. Safety wire are fixed as installation guide
4. Fix the motor complete with blade before fix to pipe.
After Installation
1. Ensure all screw / nut are fully tighten.
2. Do not clean the blade by pulling blade tip

Different types of ventilation equipment and their usage

*The above table is for reference only. Other factors such as duct length, room size, etc will affect the performance of ventilating fan. Please consider carefully when you choose ventilating fans.

Total Ventilation

Enhance ventilation in the whole house to replace polluted air with fresh air by ventilation equipments