The greater emphasis placed on interior design by homeowners these days means a higher demand as well for low-profile electrical appliances. In the realm of air distribution, this means a home exhaust fan that does not obtrude on the room layout, and more importantly, can operate noiselessly and not disturb activities like conversations, listening to music and sleep. Quiet operation is one of the top qualities that buyers look for in electric fans, along with durability, easy installation and convenient usage.
A home fan generally creates positive pressure to expel stale air through the gable or Soffit vents, and at the same time, creates negative pressure to draw fresh air from openings like windows. Different models from recognized brands like Air King and Broan are commonly a choice of ceiling, roof, inline or wall mounted. Bathroom and window exhaust fans, kitchen range hoods, ceiling ventilation fans are popular for commercial and residential use.
The Panasonic FV 05VQ3 Whisper Ceiling mounted fan, the Fantech DBF110 Dryer Booster inline fan, and the Penn Zephyr S series of centrifugal fans are among those specifically designed to function without noise. Blowers that can move larger currents of air through wider wheels and on either side provide a means of eliminating noise, as do acoustical insulation, vibration isolators, and blades running at decreased RPM’s, like with belt-driven fans instead of direct-drive motors.
Choose a home exhaust fan with excellent but easy-to-find features such as an automatic shut off timer or thermostat, lighted controls, easy and/or remote variable speed controls, dual axis rotation, and clear storage.
Bathroom Fans come in many shapes and sizes, from round to square, and in 4″, 5″, 6″, 9″ and even 12″ versions. They are generally white or chrome, although other colours are available. Many people just pop down to a local store and pick up the first fan they see, but there are a few things you should consider about bathroom fans before you buy.
What size fan do you need? For most bathrooms, a 4″ (100mm) fan is sufficient, and is indeed the standard. If you are looking to replace an existing bathroom fan, and don’t know what size it is, don’t measure the front! The measurement is taken from the back of the fan, and it is the diameter of the spigot, or pipe, which protrudes from the back of the fan that needs to be measured. If you can’t remove the fan, (you should get a qualified electrician to do it) it is probably a 4″ one. A 6″ extractor fan is not normally required for a bathroom. They are generally more powerful and only required for kitchens.
In my opinion, the 2 most important things you should be looking at are the extract rate of the fan, and the decibel level of the fan. Obviously the best scenario is a very powerful fan with a very low decibel level. These seem to be the 2 factors in a fan which are overlooked the most! A lot of people seem to go just on looks, and think that all fans are basically the same….big mistake! 4″ fans range from an extract rate of 54m3 per hour (the minimum level required by building regulations) up to 118m3 per hour. For a standard bathroom I’d recommend anything from around 75m3 per hour, and if you take lots of baths or showers, creating lots of condensation, then anything above 90m3 per hour should so the job.