Another preparation involves first heating powdered spices such as turmeric, cumin and coriander in oil so their different chemicals mix, then adding fresh ingredients, such as garlic, ginger and onions.

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First, investment is heating up in the space.

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On the LIHEAP program, the home heating assistance program, we doubled the home heating assistance program when I first came into office, in part because there was a huge energy spike, and so folks -- if we had just kept it at the same level, folks would have been in real trouble.

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Another sign that the new-issues market is heating up: January 2006 offerings had an average first-day gain of 16% versus the 7% average since 2001.

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At first I thought this was cool, until I watched the first pot and remembered how simple a coffee maker is: a heating coil and a pump.

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When gas first began to be used a lot in the 1960s it was a substitute for home heating oil, and so it made sense to tie its price to that of oil.

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Supermarket giant Tesco has recently been given a green light to build Britain's first ever straw-powered Combined Heat and Power (CHP) plant to meet the electricity and heating needs of one of its distribution centres.

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The second part of the system captures heat wasted during the first part, which usually sneaks up the chimney or otherwise vanishes unnoticed, and uses it to provide space heating or hot water.

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