Energy efficiency in the home(GCSE PHYSICS AQA HIGHER)

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ENERGY EFFICIENCY IN THE HOME

Payback time = Initial cost / Annual Saving

The most effective methods of insulation are the ones that give you the biggest annual saving

Eventually, the money saved on heating bills will equal the initial cost of putting in the insulation.

The most cost-effective methods tend to be the cheapest.

Cost-effective is when the insulation has a short payback time.

Heat transfer in…

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