Module P1 - Saving Energy

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Insulating your house saves energy and money.

Although it costs money to buy and install insulation, it will be paid back by the money you save on wasted energy. The time it takes to do this is called 'payback time'.

Cheaper methods of insulation are less effective (saving you less money per year), but will often have shorter payback times.

The payback time can be calculated by dividing the intial cost by the annual saving.

Loft insulation is fibreglass wool laid across the loft floor, reducing conduction through the…


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