DOCUMENT

17 Cooker hoods from Miele Which operation mode do you prefer? Miele rangehood operating modes Extraction mode with an external fan – effective and particularly quiet Some vented models are also available in combination with an external fan, for instance on an outside wall or on the roof. External installation of the motor also means it can be installed where it causes the least nuisance. This reduces the noise at the hood to a minimum. For a significant reduction in noise levels, the ducting system should be at least 5-7 m long. Whether you are able to use an external fan will depend on the kitchen, where it is located and how the ducting system is installed. Recirculation mode: simple and energy efficient Recirculation rangehoods draw in steam and vapours and remove grease and odours in various filters. The cleaned air is then redirected back into the kitchen. This air circulation takes place within the room. Recirculation rangehoods need neither vent ducting nor wall or room vents. Recirculation mode rangehoods are very easy to install and are very often the only option available because of building constraints, e.g. in a block of flats. A recirculation rangehood is a good choice for installation above an electric cooktop. Over a gas cooktop, however, where lots of heat is created, a vented hood should be installed if possible. Vented mode: highly efficient Vented rangehoods draw the cooking vapours in and remove grease particles with the help of the grease filter. The filtered air is then transported out of the kitchen via vent ducting. Along with the filtered air, any excess moisture and odours are removed from the kitchen. To do this, vented rangehoods need ducting and a wall or roof vent. At the same time a flow of fresh air must be provided, by an open window for example. Vented rangehoods are particularly recommended above gas cooktops as well as for frequent deep- frying, grilling or use of the wok. This type of cooking generates a lot of heat, grease and steam which these rangehoods remove most efficiently. At the same time gas cooktops are provided with an adequate supply of fresh air containing oxygen for combustion. During cooking, and in particular when frying, vapours are given off which consist of a mixture of steam, particles of fat and odours. If air in the room is not extracted or filtered, these vapours will remain in the room and affect the kitchen environment. Over a period of time this will affect the kitchen furniture, soft furnishings, paintwork etc. as this is where grease and vapours settle. Three options are available for effective cleaning of the air: extraction mode, extraction mode in combination with an external fan and recirculation mode. All three methods have their advantages and disadvantages. Which one suits you best will depend on a number or factors which are explained on the next pages.