Basically you spend money generating heat in your home for hot water and heating and you risk wasting lots of money through heat losses in the building.
If your hot water cylinder has little or no insulation around it then installing a new jacket could save you a lot of money. All exposed pipe-work should be insulated to help prevent heat loss and also prevent freezing if you leave the property vacant for a long period of time in winter.
Turning off or down the radiators in rooms you don’t use will also save a lot of money, but keep a lookout for any signs of mould in these areas periodically – you could have overdone it.
Fit draught excluders where possible as even if your house is well heated the draughts can make it feel cold regardless – and it will cost much more to heat. Draughts can typically form around doors, letter boxes, windows & loft hatches. Don’t forget to insulate the back of the loft hatch.
The loft is a major source of heat loss from a building, it should be a minimum of 6 inches ( 150mm ). Any pipe-work or tanks in your loft should be well insulated also.
The walls of your house can allow a huge amount of heat loss to occur, this can be greatly reduced if you have cavity walls as many companies offer cavity wall insulation which is typically injected into the gap between the 2 courses of brickwork.
Heat losses through floorboards can also be an issue, you might want to investigate if there is enough access to the joists under the floorboards as you could insulate them from underneath with mineral wool mat or expanded polystyrene.
If you have any single glazed windows these will allow a lot of heat to be lost. Installing double glazing will dramatically reduce the heat losses from the building.
For more information or advice contact PlumbU at http://www.thechelseaplumbers.com