Running space heaters is often cheaper for heating small areas, while central heat is more efficient for larger spaces, depending on energy costs and usage.
Choosing between space heaters and central heating depends on your home size, insulation, and energy costs. Space heaters work best for single rooms, while central heating is more efficient for whole-house warmth. Let’s break down the costs, safety, and best use cases for each.
When Are Space Heaters Cheaper?
Space heaters cost less upfront but can drive up electricity bills if overused. They work best in small, well-insulated spaces where you spend most of your time.
Cost to Run a Space Heater
A typical 1,500W space heater costs about $0.20 per hour to run. If used for 8 hours daily, that’s $48/month—far less than heating an entire home.
| Heater Type | Wattage | Cost Per Hour (Avg.) |
|---|---|---|
| Ceramic | 1,500W | $0.18 – $0.22 |
| Oil-Filled Radiator | 1,500W | $0.18 – $0.22 |
| Infrared | 1,200W | $0.14 – $0.18 |
Best Uses for Space Heaters
- Home Offices: Heat just the room you’re working in.
- Bedrooms: Warm sleeping areas without heating unused rooms.
- Garages/Basements: Supplement central heat in poorly insulated spaces.
For safety, choose models with tip-over protection and automatic shutoff. The best app-controlled space heaters let you adjust heat remotely.
When Is Central Heating More Efficient?
Central heating systems (gas, electric, or heat pumps) distribute warmth evenly and cost less per square foot for whole-home heating.
Cost Comparison: Central Heat vs. Space Heaters
Heating a 2,000 sq. ft. home with central gas costs about $80/month, while multiple space heaters could exceed $150/month.
| System | Avg. Monthly Cost (2,000 sq. ft.) |
|---|---|
| Gas Furnace | $70 – $90 |
| Electric Heat Pump | $90 – $120 |
| 3 Space Heaters (8 hrs/day) | $120 – $180 |
Best Uses for Central Heating
- Large Homes: More cost-effective than multiple space heaters.
- Cold Climates: Maintains consistent warmth in freezing temperatures.
- Well-Insulated Houses: Retains heat better, reducing energy waste.
Upgrading to a high-efficiency gas heater can cut costs further.
Key Factors to Consider
1. Home Size and Layout
Space heaters work for single rooms, while central heating is better for open floor plans.
2. Energy Costs
Electricity rates vary—check local energy prices to compare costs.
3. Insulation Quality
Poor insulation makes space heaters inefficient. Seal drafts first for maximum savings.
4. Safety
Central heating is safer than space heaters, which cause 1,700 fires annually.
Hybrid Approach: Maximize Savings
Use both systems strategically:
- Set central heat to 62°F (16°C) when away or sleeping.
- Use a space heater in occupied rooms for targeted warmth.
- Install a programmable thermostat to automate savings.
This approach can save up to $300/year in energy bills.
Final Verdict
Space heaters win for small spaces; central heat is cheaper for whole homes. Match your heating strategy to your lifestyle for the best savings.
