Ceiling fan 107 cm or 132 cm: which to choose by room, and why bigger is not always better

A 107 cm diameter fan comfortably covers 10 to 21 m²: all bedrooms, an office, a kitchen, a medium living room. A 132 cm covers 20 to 30 m²: a large living room, a living space, a master suite. Beyond 30 m², or in a room over 6 m long, a single unit is no longer enough whatever its diameter, and two compacts do better than one large one.

The overlap zone, between 18 and 22 m², is where you hesitate. Two criteria decide. Shape: a square 20 m² room is covered by a 107 cm in the centre; a 20 m² room measuring 6 m by 3.3 m calls for a 132 cm or, better, placement shifted toward the use area. Height: under 2.50 m, 107 cm remains preferable; at 2.70 m and above, the air volume is larger and 132 cm is justified.

Diameter decides the space needed. A 107 cm needs 1.5 m between blade tip and nearest wall; a 132 cm, 2 m. In a 3.5 m wide bedroom with a bed against the wall, 132 cm brushes the limits; 107 cm breathes. Height follows the same logic: both need 2.10 m under the blades, but a 132 cm body is often taller, and a 2.40 m ceiling leaves margin only to the 107 cm.

Weight also counts for fixing. A compact 107 cm like the Boréal weighs about 5 kg and holds on a properly fitted ceiling box; a 132 cm weighs 7 to 10 kg and more often requires checking or reinforcing the fixing, especially on a plasterboard ceiling. For equal area, fitting the compact is simpler, faster, more often doable yourself.

At equal speed, a 132 cm moves more air and makes a little more air noise; at equal airflow, it turns more slowly and can be quieter. In a bedroom, where the night passes on speed 1, the difference is small: both run around 30 dB. In a living room used on speed 2 or 3, the 132 cm cools more, which is its argument in a large room.

Looks are the compact's argument. Folded, a 107 cm with retractable blades is a 15 cm disc under the ceiling; a 132 cm, even folded, is wider and taller, more present in a medium room. For a bedroom, an office, a kitchen, where the fan must be forgotten eight months a year, 107 cm is the right choice even if the area would allow a 132 cm. For a large living room, where the unit is central and seen from afar, 132 cm is proportionate.

A quality 107 cm costs 150 to 200 euros, 157 euros for the Boréal 107; an equivalent 132 cm 200 to 280 euros. The gap is reasonable, but it changes things as soon as several rooms need equipping. The Boréal 107 2+1 pack at 378 euros equips three rooms for the price of two, 126 euros each: a medium living room and two bedrooms, or a long large living room with two units plus a bedroom.

That is often the best answer to hesitation: rather than a single 132 cm in the centre of a long 25 m² living room, two 107 cm, one per zone, for a similar price and better coverage, each at low speed. The 132 cm keeps its full sense in a square 22 to 30 m² room with a high ceiling, where a single central point is the right place.