There’s no need to burn your budget to stay warm. When the temperature drops, a big question arrives: switch to a small heater or install the central system?
get confused. A space heater warms a single room. On the other hand, a central heater can be used for the whole house.
The main purpose is the same, but they don’t treat your electric bill the same way. Are portable electric heaters expensive to run?
Check out this guide to understand which one is more cost-effective.
Heaters vs Central Heating: The Core Differences
Let’s first try to understand how these systems consume energy:
Central Heating System
These heating systems are designed to heat the entire volume of your house. It doesn’t matter if you are in the kitchen or bedroom. A uniform temperature can be maintained using the central heaters.
Space Heaters
It’s known for zone heating or localized heating. What does that mean? A specific person or a small radius within a room can be warm.
There’s a big efficiency gap between these two. Most central heating systems use natural gas. And it’s significantly cheaper than the electricity used by portable heaters. But the problem is that central heaters lose energy through ductwork.
Space heaters and heating equipment are 100% efficient. But electricity itself is expensive per unit of energy compared to natural gas.
When Should You Consider Installing Central Heating?
For a multi-person household, central heating is the right solution. The members move from one room to another frequently. The central heater is cost-effective when
- You need comfort for the whole
- Want to prevent pipes from freezing in the crawl space
- In your area, natural gas is 3 to 4 times cheaper than electricity
When Should You Consider Installing a Space Heater?
The space heater and heating equipment is cost-effective under specific conditions. As we mentioned before, it provides zone heating. You can save up money when
- Living in a single room
- You are alone and spend hours in the room. The space heater helps to heat your desk area to 21°C (70°F) immediately. There’s no need to turn the central thermostat down to 16°C (60°F).
- Your room is naturally colder because of poor insulation
Heaters vs Central Heating: Cost Comparison
Is it cheaper to heat one room with an electric heater? Check out the table to understand the cost of using a space heater and central heater:
| Feature | Central Heating (Gas) | Space Heater (Electric) |
| Energy Source | Natural Gas / Propane | Electricity |
| Initial Cost | High (integrated system) | Low ($30–$100) |
| Cost per BTU | Low | High |
| Ideal For | Families, large homes | Studios, single-room use |
| Safety Risk | Low (if maintained) | Higher (fire/tip-over risk) |
REAL Life Example: Heating One Room Instead of Whole House
Here’s a real-life example I found from Energy Saving Trust (UK) where they write about how families have cut down on expenses by only heating the rooms that are being occupied.
ENGAGE: Energy Saving Trust – Heating one room instead of the whole house – https://energysavingtrust.org.uk/advice/room-heaters/
Overview: In this real-life scenario, families were able to cut their heating costs by using portable electric heaters in the rooms that were being used. They kept their central heating turned down and used oil-filled radiators and electric room heaters to keep rooms comfortable.
Takeaways:
- Used less energy overall
- Used less gas from central heating
- Allowed for more comfort when spending long periods of time in one room
See how this example shows that space heaters can save you money when used properly. But central heating is more ideal for keeping your entire home warm and pipes heated through colder seasons.
Space Heater vs Central Heating: Frequently Asked Questions
Will a space heater save me money compared to central heating?
Not necessarily. If you use it to heat a single occupied room, a space heater can be more efficient than central heating. Trying to heat multiple rooms with portable space heaters will generally cost more than turning on gas-powered central heating.
How much does it cost to run a space heater?
Electricity tends to cost more per unit than natural gas. Most space heaters are 100% efficient, so they don’t waste energy converting electricity into heat. If used improperly, they can still bump up your electricity bill with long run times.
When should I use central heating?
Central heating makes sense when:
- Everyone is moving around the house
- You want even, whole-house heat
- You need to prevent pipes from freezing
- You have very cheap natural gas compared to electricity
When should I use a space heater?
You should use a space heater:
- When you’re living alone, or occupy one room a majority of the day
- When you want fast, personal heat (think: desk, bedroom, home office)
- If your room is cold due to external factors like poor insulation
You don’t want to heat empty rooms in your home
What kind of space heater is most affordable?
Oil-filled radiators tend to cost less over long periods since they hold their heat and cycle on less frequently. Fans heat up more quickly but draw more power when running constantly.
Can I use a space heater every day?
Yes! Space heaters can be used daily if you take the proper precautions. Look for heaters with tip-over shut-off and overheat protection features, and always place them on stable surfaces away from flammable objects.
Final words
The central heater is the most cost-effective solution for general living. The space heater is suitable if there is no need to maintain the temperature of the whole house.
If you spend hours in a single room, use an oil-filled radiator. It may take longer to heat, still a better option than a ceramic fan heater.