Insulate outlet pipes from the heater for at least 2 metres. Use a controlled flow shower rose that reduces the amount of water used. Load dishwashers fully. Fix dripping water taps. Where possible use fluorescent lighting instead of incandescent bulbs.
Fluorescent lighting has a high start up cost, but minimum running costs.
They should be used on areas that are lit for long periods, such as halls, kitchens, family rooms, and outdoor security lighting. Most of the power consumed by incandescent bulbs is given off as heat. Light coloured ceilings and wall furnishings distribute light more evenly than darker surfaces. Dust and dirt on bulbs and lampshades can reduce lighting efficiency by up to half. Multiple fittings that have several globes can be less efficient than those with a single globe.