As energy prices rise, many homeowners are searching for the most cost-effective way to heat their homes. The cheapest heat setting isn’t just a number on the thermostat—it’s a combination of smart habits, efficient systems, and a little bit of science. In this blog, we’ll explore the best heat settings and money-saving techniques to keep you warm without burning through your wallet.
What Is the Cheapest Heat Setting?
🧊 What’s the Ideal Thermostat Setting?
Experts recommend setting your thermostat between 18°C and 21°C (64°F–70°F) for both comfort and efficiency. Lowering your thermostat by just 1°C could save you up to 10% on your heating bill.
Another smart move? Reduce your boiler’s flow temperature from the standard 80°C to around 60°C. This simple adjustment can potentially save you £200 per year, according to UK energy experts.
🕒 Timed Bursts vs. Constant Heat
You might think keeping your heating on low all day is cheaper—but that’s a myth. Running your heating in timed bursts is typically more energy-efficient. Use a programmable thermostat to heat your home only when needed, especially during mornings and evenings when you’re most active.
🧠 Go Smart: Thermostats and Zoning
Smart thermostats and thermostatic radiator valves (TRVs) allow you to control the temperature of individual rooms. Why heat the whole house if you’re only using one or two rooms? With these tools, you can zone your heating, reduce waste, and cut costs.
🔧 Extra Tips to Lower Your Heating Costs
Here are some bonus tips to maximize your energy savings:
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Lower Your Water Heater Temperature
Set it to 120°F (49°C) to save 3–5% on water heating costs. -
Use Passive Solar Heat
Open curtains during sunny winter days to let natural light warm your home. -
Seal Drafts and Insulate
Use draft stoppers, window film, and insulation to keep heat in and cold air out. -
Targeted Heating with Space Heaters
For small spaces or single rooms, using an energy-efficient space heater can be cheaper than heating the whole house.
🏠 Thinking Long-Term? Consider Heat Pumps
If you’re looking for a long-term investment, heat pumps are highly energy-efficient—up to five times more than traditional heating systems. While the upfront cost is higher, the savings and environmental benefits can be significant over time.
✅ Summary: How to Heat Smart & Save Big
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Set thermostat to 18°C–21°C
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Use timed heating, not constant low heat
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Try smart thermostats and TRVs for zoning
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Lower water heater to 120°F (49°C)
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Use sunlight for free heat during the day
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Seal drafts and insulate properly
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Use space heaters where appropriate
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Consider heat pumps for long-term savings
With just a few changes to your heating habits and settings, you can stay warm and save hundreds of dollars each year. Whether you’re using a central heating system or space heaters, being strategic with your heat settings pays off.
