Optimising Your Existing Heating System
Making small, calculated adjustments to your current heating setup can yield substantial long-term savings.
1. Master Your Thermostat and Controls
One of the simplest yet most effective ways to save is by carefully managing your heating controls.
- Turn Down the Thermostat: Reducing your main thermostat by just 1°C can cut your heating bill by up to 10%, per SEAI guidelines. Target temperatures between 20°C-21°C for living areas with lower settings for hallways and bedrooms.
- Use Timers and Zones: Only heat when needed. Activate boiler timers one hour before waking, disable 30 minutes before departure or sleep. Utilize zoned heating for occupied rooms only.
2. Service Your Boiler Annually
An inefficient boiler dramatically increases fuel usage. Annual servicing by a Registered Gas Installer (RGI) or qualified oil technician ensures optimal performance, potentially saving 10-15% on heating costs with modern condensing models.
3. Bleed and Adjust Radiators
An overlooked maintenance task impacting heat distribution.
- Bleed Radiators: Cold tops with warm bottoms indicate trapped air preventing efficient heating. Use radiator keys to release air for even heating.
- Adjust Thermostatic Radiator Valves (TRVs): Control individual room temperatures by reducing TRVs in rarely-used spaces.
4. Harness Solar Gain
Utilize natural free heat from sunlight.
- Open Curtains: During daylight, open coverings on sun-facing windows for natural warmth.
- Close at Dusk: Seal curtains when sun sets to create insulating layers, trapping daytime heat and preventing window escape.
Save on Your Home Heating Bills Today!
Our heating experts at Selectra help you compare boiler services, heat pumps, and oil prices to find the cheapest solution — for free.
Improving Home Insulation and Airflow
Heat loss through building fabric represents major wasted energy. Addressing this provides greatest long-term savings.
5. Prioritise Loft and Cavity Wall Insulation
SEAI reports "up to 30% of heat can be lost through the roof."
- Check Insulation Depth: Ensure attic insulation reaches 300mm for cost-effective upgrades with rapid payback.
- Cavity Walls: Pumping cavity insulation prevents wall heat loss in homes lacking this feature.
6. Eliminate Draughts
Drafts represent significant heat loss costs.
- Seal Gaps: Apply draught-proofing strips, weather-stripping, or caulk around windows and doors.
- Fireplace Blocker: Use chimney balloons or draught excluders on unused fireplaces. Important: Never block active chimneys.
7. Insulate Hot Water Supply
Maintain hot water cylinder and pipe heat.
- Lagging Jacket: Install high-quality insulated lagging jackets on cylinders to retain temperature longer.
- Pipe Insulation: Wrap accessible hot water pipes with foam tubing to minimize heat loss between cylinders and fixtures.
8. Use Curtains and Blinds Strategically
Heavy thermal-lined curtains function as secondary insulation.
- Thermal Curtains: Invest in thermal-lined options, especially for single-glazed windows, significantly reducing nighttime heat loss.
- Avoid Covering Radiators: Prevent curtains from draping radiators, which redirects heat outward and wastes energy.
Smart Habits and Appliances
Daily routine changes and low-cost purchases contribute to overall efficiency.
9. Utilise Low-Cost Personal Heating Aids
Target heat to your location rather than entire homes.
- Electric Blankets/Throws: These energy-efficient devices warm users directly, allowing central heating reduction during evenings.
- Hot Water Bottles: Traditional yet effective methods for bed warming and localized warmth.
10. Mind Your Furniture Placement
Furniture unintentionally blocks heat circulation.
- Move Radiators: Prevent bulky sofas or wardrobes from obstructing radiators, which blocks circulation.
- Internal Walls: Position seating against interior rather than exterior walls, as external surfaces stay colder.
11. Cook Cleverly for Heat
Kitchen appliances offer temporary heating boosts.
- Use Residual Heat: Leave oven doors ajar after cooking (safely, when supervised) to warm adjacent kitchen spaces with residual warmth.
- Batch Cooking: Prepare multiple meals simultaneously to maximize oven heat utilization and reduce repeated heating energy.
12. Reflect Heat from Radiators
Simple, low-cost DIY improvement.
Place reflective radiator foil behind radiators on external walls. This reflects heat into rooms rather than allowing walls to absorb and lose it externally.
Save on Your Home Heating Bills Today!
Our heating experts at Selectra help you compare boiler services, heat pumps, and oil prices to find the cheapest solution — for free.
Long-Term Efficiency Upgrades
These investments offer greatest long-term savings and often qualify for government grants (SEAI).
13. Consider a High-Efficiency Gas Boiler
For gas-networked homes, this remains "one of the cheapest ways to heat a house in Ireland" regarding daily running costs, as gas currently costs less per kilowatt-hour than electricity or oil.
Modern A-rated condensing boilers significantly reduce running expenses compared to older inefficient models.
14. Invest in Heat Pump Technology
High installation costs yield lowest long-term running expenses in well-insulated homes.
Air-to-water heat pumps extract outdoor air heat efficiently, providing "up to three to four units of heat for every one unit of electricity used." They represent future low-carbon, low-cost heating solutions.
15. Explore Government Grants
Reduce financial barriers to insulation and heating upgrades.
The Sustainable Energy Authority of Ireland (SEAI) provides various grants, including 'One Stop Shop' services for deep retrofitting and individual grants for attic/wall insulation, heating controls, and heat pump installation. Research and applications significantly lower upfront investment requirements.
By implementing these 15 strategies, from simple behavioural changes to strategic home improvements, you can effectively manage and significantly reduce the cost of heating your home in Ireland, ensuring comfort without financial strain.