Environment & nature > Energy-saving tips 3

Energy Saving Tips 3

Did you know around 20% of the heat in the average home is lost through ventilation and draughts?

Ventilation in your home is vital to replace moist, stale air with fresh clean air. The problem many face is that excessive and uncontrolled ventilation accounts for heat loss.

The trick is to control the passage of air so that it is just enough to meet the ventilation needs and has an efficient route through the house.

First block up all sources of unwanted draughts, then consider how to add ventilation that you can control as you need it. Basic draught-proofing will cost around £20 and pay back in under a year.

Don't go with the flow

Easy ways to stop the draughts:

  • Chimneys - stuff unused chimneys with newspaper, Rockwool or other such material.
  • As the days get chillier, closing your curtains at dusk will stop cold draughts coming down into the room.
  • Warm air rises - look up and check that your loft door isn't leaking air to the loft space. Seal the edge of the door with self adhesive foam strip.
  • Close doors to the stairway or upstairs - halting the rise of heat through the home will keep your downstairs rooms warmer.
  • Check for holes around pipework passing through the top floor ceiling into the loft. Fill with foam and mastic.
  • The traditional Door Snake; a fun sewing project for kids!

Windows and Doors:

Check your letterbox, windows and doors for cracks and gaps. This might be easier on a windy day. You can buy brushed strip and other self-adhesive devices to help.

Even double-glazed windows and doors can leak air if the hinges are worn or seals perished. Self adhesive foam strip and sheet is widely available.

Secondary seasonal insulation provides instant double-glazing. The tough and durable film shrinks to fit the window tightly with the heat from a hairdryer. It is quick and simple to fit and requires no special tools.

Local Double Glazing businesses who can help include "Pane Relief" (Almondsbury) "The Window Doctors" (Winterbourne), "High Tech Windows" (Eastwood Park) and "Bradleystoke PVCu Window Repairs".

Sustainable Thornbury

Take to the floor:

If you have a suspended ground floor, then there should be a circulation of cold air beneath coming through the "air bricks". Defeat that upward draught of cold air by filling gaps near the skirting boards and in the floor with beading or mastic sealant.

Forcing the issue:

Two areas of the home that benefit from forced ventilation are the kitchen and the bathroom.

Ceiling mounted extractors work well in the bathroom and a hood over the hob in your kitchen are two ways to take away the moist air that can cause damp problems, especially in winter. DIY kits are widely available ready to install from £20.

Unfortunately using an extractor throws out valuable heat as well as moisture. A heat recovery fan extracts too, but heats the incoming fresh air from outdoors with the outgoing warm air making your kitchen much more pleasant, especially in winter. Cost: from £125 (DIY).

Important Notes:

Note that minimum ventilation is required in rooms with a boiler, open fire or a gas fire. South Gloucestershire Council Building Control will be able to advise: www.southglos.gov.uk or tel: 01454 868 004

New electrical safety laws now means that domestic electrical wiring now needs to be installed by or certified by an NICEIC approved electrician after your DIY: www.niceic.org.uk or tel: 0870 013 0381

Look out for more tips over the coming weeks at www.mythornbury.co.uk and in the Thornbury Gazette

See also

Sustainable Thornbury website



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