A 3 in 1 exhaust fan offers the combined benefit of extraction, lighting and also heating. All three functionalities are operated separately by three different switches which gives flexibility and control. Heat is produced by the built in heating element/heat lamps which results in instant warmth. There is no need to pre- heat the room before a shower or bath. This can be of great benefit on those cold winter mornings and evenings. There are a few things that have to be considered when choosing 3- in-1 exhaust fans:
1) Does the fan capacity of the exhaust suits your room size? Each fan has a different capacity range, a larger capacity unit will be more suitable for a large room. As a general rule of thumb take your room size in cubic meters (length x width x height) and multiply this figure by 15. 15 is the number of air changes per hour we typically recommend. For example for a room 10m3 a fan with an extraction rate of 150 m3/hr would be well suited.
2) Which lights you want to go with? Halogen or LED? Many new models come with energy efficient LED lights.
3) How many heat lamps? 2 or 4. The units with 2 heat lamps are suitable for smaller bathrooms and the one with 4 heat lamps are suitable for medium/large rooms. At heating online, we stock all of the top brands of 3-in-1 exhaust fans.
View all of our 3 in 1 units below.

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