Bathroom Fans come in two types. Axial fans extract air through the impeller which is parallel to the shaft around which the blades spin. These are the most common of domestic wall fans and are perfect for use in the bathroom, toilet or smaller rooms where it needs to be installed in a window or ducted straight through the wall. The standard size impeller for this type of extractor is normally around four inches or possible six inches if it is a large space. They usually come in two different voltages, 240 volt for mains or 12 volt for low voltage applications. Different switching options are common with features like pullcords, himidistats and timers which can be used to activate the fan.
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A centrifugal fan is one in which the air is extracted at right angles to the intake of the fan, the air is then spun outwards to the outlet by centrifugal force and deflection. The rotating impeller causes the air to enter the fan near the shaft, this then moves perpendicularly from the shaft to an opening in the fan casing. This type of action produces a higher pressure which allows the extracted air to be pushed along much longer ducting than an axial fan. The wall mounted version looks just like an ordinary axial fan and since the impeller is discreetly hidden behind a grille and casing it can be difficult to spot the difference. The only telltale sign is usually the price as centrifugal wall fans are generally more expensive than axial fans. They are ideal for rooms where there aren't any exterior walls because they tend not to have natural ventilation or windows and the ducting will more than likely be very long.
With over 55 years of experience in the ventilation industry, there is a guarantee of reliability and quality built into every product. All xpelair products are constantly monitored to ensure they meet all regulations and approvals. The Xpelair range is built under the ISO: 9001:2000 quality control system.
Manrose's research and development team have consistently produced extractor fan products that stand out from the rest, bringing them to market through a team of experienced professionals who understand the needs of their customers.
Greenwood was founded in 1879 and is still a market leader in the design, specification and manufacture of smart ventilation solutions for both the new build and refurbishment markets. Part of the Zehnder Group, they operate from a Carbon Neutral head office and are putting guaranteed performance at the heart of everything.
For 75 years, Vent-Axia has set the ventilation standard and are a truly dynamic British manufacturer. They invented the first electrically-operated window ventilator in 1936 and have been at the forefront of technology in the ventilation industry ever since. Vent-Axia was granted the warrant by HM the Queen in 1985 with the legend: Suppliers of Unit Ventilation Equipment to the Royal Households.