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10 Ways to Heat Your Home More Efficiently This Winter

Practical tips to stay warm while keeping energy bills under control during the coldest months.

Emma Thompson

Energy Advisor

Monday, January 5, 2026
4 min read
Cozy living room with warm lighting

Winter heating accounts for over half of the average UK household's energy bill. Here are 10 proven ways to stay warm without watching your costs spiral.

1. Turn Down by 1°C

Every degree you lower your thermostat saves around 10% on heating costs. Most people can't tell the difference between 21°C and 20°C.

TemperatureAnnual Cost*Comfort Level
22°C£1,400Too warm for most
21°C£1,260Recommended max
20°C£1,135Ideal for most
19°C£1,020Comfortable with layers

*Based on average 3-bed house with gas heating

Tip

Use OhmMy's temperature tracking to find your comfortable minimum. Many people find 19-20°C works well with appropriate clothing.

2. Heat Only Occupied Rooms

If you have thermostatic radiator valves (TRVs):

  • Living areas: Full heat when in use
  • Bedrooms: Lower temperature (16-18°C)
  • Unused rooms: Frost protection only (12°C)

Closing doors between zones helps maintain temperature differences.

3. Time Your Heating Right

Don't heat an empty house. Program your heating to:

  • Morning: Warm up 30 mins before you wake
  • Daytime: Off or reduced if everyone's out
  • Evening: On when people return
  • Night: Off or reduced for sleeping

Info

Smart thermostats learn your patterns. OhmMy integrates with Hive, Nest, and Tado to show heating alongside your other energy data.

4. Use Curtains Strategically

Free heating from the sun:

  • Daytime: Open curtains on south-facing windows
  • Evening: Close all curtains as soon as it gets dark
  • Thick curtains can reduce heat loss through windows by 25%

5. Bleed Your Radiators

Air trapped in radiators reduces efficiency significantly:

  1. Turn off heating and let radiators cool
  2. Use a radiator key to open the bleed valve
  3. Close when water (not air) comes out
  4. Check pressure and top up if needed

Signs you need to bleed: cold spots at the top, gurgling noises.

6. Don't Block Radiators

Heat gets trapped behind:

  • Furniture pushed against radiators
  • Long curtains covering radiators
  • Clothes drying on radiators

Leave at least 10cm gap for air circulation.

7. Draught-Proof Everything

Common heat escape routes:

  • Letterboxes: Fit a brush or flap
  • Keyholes: Use covers
  • Door gaps: Install draught excluders
  • Floorboard gaps: Fill with sealant
  • Loft hatch: Add insulation strips

Success

DIY draught-proofing typically costs under £50 and saves £30-50 per year. Payback in one winter!

8. Insulate, Insulate, Insulate

If you haven't already:

Insulation TypeCostAnnual SavingPayback
Loft (270mm)£300-400£1802 years
Cavity wall£400-600£1603 years
Hot water tank£20£357 months
Pipe lagging£10£101 year

Check for grants—many homes qualify for free insulation.

9. Service Your Boiler

An annual service ensures:

  • Maximum efficiency
  • Safe operation
  • Valid warranty
  • Longer lifespan

A well-maintained boiler can be 10-15% more efficient than a neglected one.

10. Consider a Heat Pump

For the long term, air source heat pumps offer:

  • 300-400% efficiency (vs. ~90% for gas)
  • Lower running costs with cheap electricity
  • Zero direct emissions
  • Government grants up to £7,500

Warning

Heat pumps work best in well-insulated homes with underfloor heating or oversized radiators. Get a proper assessment before switching.

Track Your Progress

Use OhmMy to monitor:

  • Gas consumption trends over winter
  • Cost per degree-day for fair comparison
  • Room temperatures if you have smart sensors
  • Heating schedules across all your devices

Set a weekly reminder to check your stats and adjust.

Quick Wins Summary

Do today:

  • Turn thermostat down 1°C
  • Close curtains at dusk
  • Check for obvious draughts

Do this week:

  • Bleed radiators
  • Check TRV settings
  • Clear space around radiators

Do this month:

  • Draught-proof doors
  • Insulate hot water tank
  • Book boiler service

Stay warm, save money, and reduce your carbon footprint—it's possible to do all three!

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