The EnergyGuide label on new refrigerators will tell you how much electricity in kilowatt-hours (kWh) a particular model uses in one year. The smaller the number, the less energy the refrigerator uses and the less it will cost you to operate. In addition to the EnergyGuide label, don't forget to look for the Energy Star label. A new refrigerator with an Energy Star label will save you between $35 and $70 a year compared to the models designed 15 years ago. This adds up to between $525 and $1,050 during the average 15-year life of the unit.

A large number of freezers have eliminated defrosting by continually circulating the air inside the freezer compartment, thus avoiding frost build-up -- a feature well worth paying a little extra for.

Granite is an igneous rock. It is formed as a result of the slow crystallisation of molten magma at depth in the earth's crust. Uplift and erosion has over millions of years resulted in this material outcropping at the surface. The minerals which make up granite are generally quartz, felspars and various mafic minerals (amphiboles, pyroxenes, micas and secondary materials). It is the size, distribution and precise chemistry of these minerals which give the granite it's colour. The silica content of granite should be at least 70%. In the stone industry "granite" has been a term applied to almost all igneous rocks and schists.