2 Insulate – Doubling the thickness of insulation will increase the cost by less than 25% - the labour element remains largely the same. Insulation is king in an energy efficient home and whether the insulation is Rockwool or Kingspan, sheep wool or cellulose will depend on preference and budget.

3 Windows – double glazing is good, but replacement units are not always the answer. Secondary double glazing can come in at a tenth the price and will be almost as good. Remember, we only lose 10% of the heat through the windows so be budget aware.

4 Lighting Power – Halogen bulbs are not energy efficient. Use LED’s or compact fluorescent. The average kitchen will need at least 8 halogens at 50W each. LED’s will give the same amount and quality of light for less than 100W.

5 Power Consumption

As the proliferation of electrical equipment has increased so the amount of electricity used by the average household has increased – at a steady 2% per year since the 1960’s. Minimise electricity consumption by using things like low-energy lighting, power-down plugs and A-rated appliances.

Look out for Tim’s final five tips next week.

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