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THE WINDOW TREATMENT SPECIALISTS

The Energy Saving Window Film from 3M

Be a superhero. Protect your family from the damaging rays of the sun and the icy bite of winter. March towards a more sustainable future. Discover the energy savings that are within your superpowers.

Energy Saving Window Film

What follows are estimates of reductions in heat loss for a property in the south of the United Kingdom. The calculations are based on London. Expect about 15 percent greater savings in a northern city, for example Edinburgh. The assumption is that the thermostat is set to 21 degrees Celsius and there is the following glazing:

  • 10.5m2 of north or south-facing glazing;
  • 3.5m2 of east-facing glazing;
  • 3.5m2 of west-facing glazing; and
  • 12m2 of roof glazing

Many properties we are seeing have been converted to have open-plan living areas with abundant amounts of glazing in order to be bathed in natural light.

In our considerable experience, we believe that thermostats can be adjusted downwards slightly because there is less need to compensate for cold spots adjacent to windows. The Carbon Trust estimate an 8 percent reduction in energy consumption for every degree that the thermostat is reduced. See article RADIANT HEAT for information about Mean Radiant Temperature and its affect on comfort.

KWh Reduction in Heat Loss using 3M Thinsulate CC75 on Single Pane Glazing

At 4p per KWh the savings in January alone would be almost £34 assuming an indoor temperature of 21 degrees Celsius is maintained.

Over the expected life of the energy saving window film the savings are conservatively estimated in excess of £5000.

KWh Reduction in Heat Loss using 3M Thinsulate CC75 on Old Double Glazing

The savings are £12 just for the month of January. Large expanses of older glazing present issues with comfort. See the article INSULATION WINDOW FILM MAGIC FROM 3M.

Over the expected life of the energy saving window film the savings are conservatively estimated in excess of £1730.

KWh Reduction in Heat Loss using 3M Thinsulate CC75 on Ultra Modern Double Glazing

The reduction in heat loss is less of an issue. Clients contact WindowTreat about comfort issues where the heating systems struggle to cope with open plan living areas with large amounts of glazing. Do call us if this is your situation.

Please note that WindowTreat accept no liability for the estimates. They have been produced to assist clients' understanding of the energy efficiencies expected.