Commercial Extractor Fans - 01733 700468
|Poor ventilation results in steam from bathrooms, showers and kitchens which creates condensation.|
- Fans should always be located as high as possible (a minimum of 1.8m from the floor) in the window or wall nearest to the steam or smell source, but not directly above a cooker hood, cooking hob or grille.
- They should be positioned as far away as possible from the main source of air replacement.
- An extractor fan, unlike a cooker hood, does not have an integrated particle filter, which prevents fatty deposits building up in the ducting.
- It should only be used as an additional source of ventilation in a kitchen.
- If there is a gas heater or boiler in a room it must have sufficient ventilation when the extractor fan is running.
- Inadequate ventilation could result in toxic fumes being drawn down the flue into the room.
- Calculate the volume of the room in cubic metres (length x width x height).
- Multiply by the number of air changes (the cubic volume of air removed and replaced) per hour.
The minimum number of air changes needed per hour is 10-15 for utility rooms, 10 for kitchens and 3 for living rooms. In bathrooms, showers and toilets, regulations require the fan to be fitted with a timer giving a 15 minute over-run after the room has been vacated. This is usually achieved by operating the extractor fan via the light switch.Modern kitchen ventilation is achieved using a cooker hood, however on occasion extra ventilation is required. Building regulations stipulate that you need a larger fan in kitchens. While most bathroom fans have a 100mm spigot (the diameter of the air outlet on the back), kitchen fans tend to have a 150mm diameter spigot. Fans can vent to the outside world in one of three ways - wall, window or ceiling. Not all fans can be mounted in all ways so it is always best to check which solution is best for your circumstances. Fans need to have special attention paid to them when being installed. In recognition of this, Part P of the Building Regulations came into effect in 2005 and covers the installation of electrical appliances in the home. It stipulates that the householder can undertake small replacement jobs such as electrical sockets or light switches but for places considered 'high risk' - e.g. wet rooms, such as bathrooms - special consideration must be given. A qualified electrician who is registered under the Part P self-certification scheme must carry out this electrical work.
30/11/2012 | View: 192 | Categories: ROOT