Thursday, October 20, 2011

Electric Fire

Convector heaters

These type of heater are particularly useful in areas where constant warmth is required, such as sickroom, baby’s bedroom or hall. They avoid the risk of burning or fire due to direct concentrated heat, associated with a red-hot bar type of heater; but for safety they should not be installed in bathrooms, airing cupboards or greenhouse where conditions are damp – unless the heater is specifially designed for these conditions. Never place clothing on or near the hot air vent to aid drying; this can lead overheating and eventual element failure. It is the best to choose a model with a built-in thermostat since this provides control over the amount of heat given and regulates a steady and constant temperature over the required area to give efficiency in terms of comfort and cost. Parts for most convector heaters are available from the manufacturer by post, together with instructions for fitting them; this is usually the best way of obtaining spares since not many heaters are identical and elements and thermostats are made and preset to suit a particular model.

Radiant heaters
These type of electric fires come in many shapes, sizes and designs and with two types of element-pencil-bar and silica-glass tube. Pencil-bar are the traditional fire elements. Elements wire is closely wount along a length of fireclay bar with either wire-round connections round a nut and bolt fixing to the internal wiring or, more commonly, caps on each end with built in terminal connections. Pencil bar are very reliable and strong, but can take time to give a red glow.

Fan heaters

It is important the inside of a fan heater is kept free from dust and fluff; besides increasing the risk of fire, a build-up of this type of materials can fine its way into the motor and these bearings, causing the motor to slow down and possibly fail. A slowly running motor will cause the element to overheat and overload cut-out to operate so the heater will not function.

Mixers and Blenders

Food mixers and blenders are two of the most labour-saving appliances available for the kitchen. There is a wide range of models and your choice will be determined-appart from appearance and price-by the number of jobs the appliance can perform using the variety of attachments available with each model. Some food mixers may be uneconomical to repair if the motor fails; many manufacturers, however, have service agents who carry spare parts and it most cases replacement motor can be fitted at reasonable cost. Always check to see if a repair is possible and worthwhile.

Mixers can be devided into two groups-large food preparation machines and hand mixers; blender are either an attachment to a mixer or a separate unit. Food preparation machines are large and powerfull; they can tackle a wide variety of cookery tasks and will cope easily with large quantities and heavy mixtures. They usually have a wide range of optional attachments, including primarily a blender, which are for specilized food preparation.

Hand mixers are smaller and less powerful than food preparation machines; they are also less expesive and more commonly used. They can tackle most of the tasks performed by the larger type of machine, but in smaller quantities and with lighter mixtures; they are flexible since you can use them in saucepan or mixing bowl.

Saturday, March 15, 2008

Household appliances

Household appliances are devices that make daily jobs around the house easier. They have changed our lifestyle and improved public hygiene and diet. Today, a house is provided with a wide range of appliances. Many are used in the kitchen to keep and prepare food. They include cookers, kettles, toaster, refrigerators, freezers, and microwave ovens. Other appliances, such as washing machines and vacuum cleaners help cleaning the house. Since the invention of electricity, many appliances have been produced.

Electric fire Convector heaters

These type of heater are particularly useful in areas where constant warmth is required, such as sickroom, baby’s bedroom or hall. They avoid the risk of burning or fire due to direct concentrated heat, associated with a red-hot bar type of heater; but for safety they should not be installed in bathrooms, airing cupboards or greenhouse where conditions are damp - unless the heater is specifially designed for these conditions. Never place clothing on or near the hot air vent to aid drying; this can lead overheating and eventual element failure. It is the best to choose a model with a built-in thermostat since this provides control over the amount of heat given and regulates a steady and constant temperature over the required area to give efficiency in terms of comfort and cost. Parts for most convector heaters are available from the manufacturer by post, together with instructions for fitting them; this is usually the best way of obtaining spares since not many heaters are identical and elements and thermostats are made and preset to suit a particular model.

Radiant heaters

These type of electric fires come in many shapes, sizes and designs and with two types of element-pencil-bar and silica-glass tube. Pencil-bar are the traditional fire elements. Elements wire is closely wount along a length of fireclay bar with either wire-round connections round a nut and bolt fixing to the internal wiring or, more commonly, caps on each end with built in terminal connections. Pencil bar are very reliable and strong, but can take time to give a red glow.

Fan heaters

It is important the inside of a fan heater is kept free from dust and fluff; besides increasing the risk of fire, a build-up of this type of materials can fine its way into the motor and these bearings, causing the motor to slow down and possibly fail. A slowly running motor will cause the element to overheat and overload cut-out to operate so the heater will not function.