Bournemouth University

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Saving Energy at Home

Only use the heat, lights and appliances you need

  • Typical Annual Saving (£) 15-40
  • Typical cost (£) one off payment 0

Lag your hot water tank

  • Typical cost (£) one off payment 5-10*
  • Typical Annual Saving (£) 5-10

Lag your hot water pipes

  • Typical cost (£) one off payment 5-10
  • Typical Annual Saving (£) 5-10

Use energy saving light bulbs

  • Typical cost (£) one off payment **2-15
  • Typical Annual Saving (£) **6

Add to your heating system:

  • Thermostat
  • Thermostatic radiator values
  • Timer/programmer

Typical cost (£) one off payment

*10-15
*45-75
*35-45

Typical Annual Saving (£)

10-20
10-20
20-25

Fit draught-proofing to windows and doors

  • Typical cost (£) one off payment *45-60
  • Typical Annual Saving (£) 10-20

Loft insulation should be 200mm thick **

  • DIY
  • Contractor

Typical cost (£) one off payment

*110-160
*190-300

Typical Annual Saving (£)

60-70
60-70

Install plastic secondary double glazing

  • Typical cost (£) one off payment *120-600
  • Typical Annual Saving (£) 15-25

If you have cavity walls, seek advice on cavity wall insulation

  • Typical cost (£) one off payment 300-500
  • Typical Annual Saving (£) 60-70

If you have an old central heating boiler, fit an energy efficient condensing boiler***

  • Typical cost (£) one off payment 400-600 extra cost compared with ordinary boiler
  • Typical Annual Saving (£)100-300 compared with old boiler

Saving Water

A family of four can save 220 buckets of water a month by turning off the tap when they brush their teeth.

*DIY costs shown for these items

** Annual saving figures relate to an average of four hours use per day, and include savings on the cost of replacement bulbs

*** Installing these items will lead to the most significant cost savings in your fuel bills and reductions in carbon monoxide emissions

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