Homeowner Solutions

Loft Insulation	Walls, doors & windows: the facts	Ground Source Heat Pumps
Cavity Wall Insulation	Boilers	Air Source Heat Pumps
Solid Wall Insulation	Solar Water Heating	Wood Fuelled Heating
Timber Windows	Solar Electricity	Lighting: the facts

Walls, doors & windows: the facts

The facts

• Nearly 50% of all the heat lost in an average home is through the roof and walls.
• More heat is lost through walls than any other route - about a third in an un-insulated home.
• Around 20% of the heat in the average home is lost through ventilation and draughts.
• A 20% of all the heat lost from a home islost through window panes and frames.

The solution

• Installing 270mm (10 inches) of loft insulation can save up to 15% of your heating costs.
• Cavity wall insulation is one of the most cost-effective energy efficiency measures you can
  take in the home. It can reduce heat loss through the wall by up to 60% and save around
  £160 each year on your heating bill.
• Invest in draught excluders for doors, windows and letterboxes that open to the outside
  to reduce the amount of warm air escaping. Skirting boards are also worth tackling.
• Double glazing cuts heat loss and also reduces noise and condensation problems.
  Savings of around £140 on bills can be expected annually if whole-house single glazing
  were to be replaced with Energy Saving Recommended double glazing.
• Close your curtains at dusk to stop heat escaping. 

The stats

• The amount of heat wasted in homes annually through poorly insulated roofs
  and cavity walls is enough to heat around 1.9 million homes for a year.
• If everyone in the UK that could install cavity wall insulation did so,
  we would cut CO2 emissions by around 4.6 million tonnes. That’s enough
  CO2 to fill 26 million double-decker buses or fill Wembley stadium 590 times.
• If every household in the UK that could have cavity wall insulation installed did so,
  it would save over £800 million a year, or enough energy to heat around 1 million
  homes for the same period.
• If everyone in the UK installed loft insulation of up to 270mm thickness,
  the equivalent financial saving would pay the heating bills of around 950,000
  families for a year. We would also save about 3.8 million tonnes of CO2 per year,
  the equivalent of taking 1.3 million UK cars off the road.