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  • Topic: Heat, Heater, Heat pump
  • Pages : 6 (1229 words )
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  • Published : December 15, 2010
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1 Keep the door closed. Ever time you open it the temperature drop about 20 degrees (c) 2 Cook several dishes at the one time.If you are cooking small items use the frypan. 3 When cooking small quantities use one sauce pan with dividers. 4 Keep food warm at 70-80 deg(c) Higher temperatures waste electricity and over cook food. 5 Use oven heat for plate warming.

6 Use utensils with flat bottoms and well fitting lids.Make sure they cover hotplates. 7 To cook vegetables the water doesn't need to be boiling furiously - a gentle simmer is enough.

8 Fan type ovens reduce cooking costs.
9 Use bright clean hotplate reflectors to send the heat upwards where it is wanted. 10 Pressure cookers can save up to 25% of power.
11 Use small appliances eg. griller,crockpot,wok,etc for appropriate foods. 12 Thaw frozen foods before cooking - this saves about 15 minutes cooking per 450 grams (one pound). 13 A microwave is very economical for suitable functions -it is excellent for reconstituting food. 14 Don't use grill-boiler plate on top of range for utensils not large enough to cover it. 15 Don't boil water on a hotplate - use an electric kettle. 16 Make sure your oven door seals properly.


17 Have the ceiling insulated with at least 50mm of fibrous or foam insulation. 18 In timber framed or brick homes the walls should also be insulated. Block off any chimneys not being used - A lot of heat is lost there. 19 Unless you have full home conditioning close the doors of the room/s being heated or cooled. Doors and windows should fit well because draughts can waste a lot of energy. Close curtains to stop heat escaping. 20 See that air- conditioner filters and condenser coils are kept clean. 21 Reverse cycle air-conditioners provide 2 to 2.5 times as much heat as an element type heater for the same electricity consumption.

22 Zoning of a house conditioned by a ducted system can cut energy consumption to a half or even third. 23 Shade windows during summer to keep sun of the glass.
24 Don't leave heating or cooling appliances on when rooms are unoccupied. 25 Use personal fans and ceiling fans for relief from hot weather. Fans cost much less to run than air conditioners. 26 Many air- conditioning systems operate at 22 deg (c). You will still be comfortable if you set the control for 24-25 deg (c) in summer and 18-19 deg (c) in winter and you will use a lot less electricity.

27 Leave room conditioner "fresh air " and "exhaust air " controls in the closed positions unless you want to freshen thew room air. 28 Set fan at high speed for a room conditioner to work most efficiently. 29 Evaporative coolers are very effective when installed correctly. The operating cost of an evaporative cooler is only a fraction of that of a refrigerated unit. 30 A student can be kept warm with a 150 watt infra red lamp fitted under the desk. 31 Localised under carpet heating gives economical armchair comfort. 32 People heating is more economical than space heating.-use radiators multi-heat radiant heaters, wall strip heaters ,fan heaters. 33 Electric blankets are the cheapest form of bedroom heating. REFRIGERATION

34 Select a fridge that uses waste heat for defrosting etc. These fridges are usually cheaper to operate. 35 Buy the size you need extra capacity uses extra power.
36 If you already have a chest or upright freezer buy an "all though " refrigerator instead of a fridge freezer combination.

37 Defrost before the ice build up is 1 cm thick.
38 Open the door only when necessary.
39 Make sure the door seals well. If a piece of paper will slide easily between the cabinet and the door seal is not good enough.

40 Keep dust and fluff brushed off the coils on the back or bottom of the fridge. 41 Put the fridge in a well...
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