Seven budget-friendly ways to keep your home warm this winter

Heating typically makes up 30–40% of a household's winter energy bill, and most homes lose more heat than they should through preventable leaks. None of the following requires major spend; together they meaningfully change what you pay between June and September.

1. Seal the obvious leaks

A 2cm gap under an external door leaks as much heated air as a small open window. Door snakes, weather stripping for gaps under doors, and silicone sealant around window frames are $10–$50 fixes that pay back in the first month. Walk through your home with the back of your hand near every frame on a cold morning — anywhere you feel cool air is a leak.

2. Use your reverse-cycle correctly

A reverse-cycle air conditioner is the cheapest form of household heating per unit of heat delivered — substantially cheaper than gas, oil column heaters or fan heaters. Set it to 18–20°C, not 24. Each degree above 20 adds roughly 10% to running costs.

Use the timer rather than the thermostat alone. Pre-heat the living space half an hour before you wake up or arrive home, then turn it off when you leave.

3. Open curtains in sun, close them at dusk

Heavy curtains over double-glazing-style design rules: open during the day on north-facing windows to let solar gain in, close them tight at dusk to trap that heat. Curtains that pool slightly on the floor seal better than ones that hang short.

4. Heat the room you're in, not the house

Central heating systems heat empty rooms by default. If you're spending the evening in the living room, close the doors to bedrooms, the laundry, the formal dining you're not using, and direct your heating to where you actually are.

5. Layer the human, not the house

Your body warms space far less efficiently than your thermostat warms your body. A long-sleeve layer, slippers, and a blanket on the couch let you drop the thermostat 2–3 degrees with no comfort loss. Cumulative savings over a winter are meaningful.

6. Drag the rugs out

Cold floors are a major source of heat loss in homes with timber or tile floors. Rugs in living areas trap warmth and make rooms feel several degrees warmer. Bonus: cheaper than a heater.

7. Run appliances early or late

Off-peak energy rates can be 30–50% cheaper than peak. If your retailer offers time-of-use pricing, run the dishwasher, washing machine, and dryer outside peak hours. Same energy, less cost.

The structural play

If you're planning to be in the home for a long stretch, the highest-return upgrades are loft insulation (if not present), draft-proofing around skirting boards, and double-glazing key living-area windows. Government rebates exist in most states; check what's available before you spend.