The best type of electric heater for a garage is a forced-air heater, as it efficiently warms large spaces quickly and can handle cold environments effectively.
Chilly garage making your DIY projects miserable? Fingers too numb to grip tools? A poorly heated workspace kills productivity and comfort—but the right electric garage heater can transform it into a cozy, functional area year-round.
The right electric heater for garage can solve these struggles efficiently. In this guide, we’ll cover the top-rated options, key features to prioritize, and expert installation tips. For those considering alternatives, explore our comparison of propane vs. electric space heaters to make an informed decision.
Key Takeaways
- Infrared heaters provide instant, targeted warmth and are ideal for drafty garages.
- Oil-filled radiators offer silent, consistent heat but take longer to warm up.
- Safety features like tip-over switches and overheating protection are non-negotiable.
- Garage size and insulation dictate the heater’s wattage requirements.
Top Electric Heater Types for Garages
1. Infrared Heaters
Infrared heaters emit radiant heat, warming objects and people directly rather than the air. This makes them perfect for garages with poor insulation or frequent door openings. Models like the Duraflame 3D Infrared Heater deliver instant warmth within seconds. According to HVAC expert Mark Johnson, “Infrared is the go-to for garages because it minimizes heat loss—tools and surfaces stay warm even if cold air rushes in.” Check our guide on infrared heater safety for best practices.
2. Oil-Filled Radiators
These heaters use thermal oil to retain heat, providing steady warmth after a 15–20-minute warm-up. They’re silent, energy-efficient, and ideal for smaller garages (under 200 sq. ft.). The De’Longhi Dragon 4 is a top pick, with adjustable thermostats and no exposed heating elements.
| Heater Type | Best For | Wattage Range |
|---|---|---|
| Infrared | Drafty/large garages | 1,500–5,000W |
| Oil-Filled | Small/insulated spaces | 700–1,500W |
Critical Features to Consider
Wattage & Garage Size
Calculate your garage’s square footage and match it to the heater’s output:
- 10W per sq. ft. for insulated spaces
- 15W per sq. ft. for uninsulated areas
A 400 sq. ft. garage needs at least a 4,000W heater if poorly insulated.
Safety & Convenience
Prioritize models with:
- Tip-over shutoff
- Overheat protection
- Thermostat/timer (e.g., programmable thermostats save energy)
Installation Tips
For permanent solutions, consider ceiling-mounted infrared panels or a hardwired unit. Portable heaters should be placed 3+ feet from flammable materials. Always verify your circuit’s ampacity—a 1,500W heater needs a 15-amp dedicated circuit.
FAQ
Can I use a space heater in my garage?
Yes, but ensure it’s rated for garage use. Standard indoor heaters may lack safety features for dusty, high-traffic areas.
How much does it cost to run a garage heater?
At $0.13/kWh, a 1,500W heater costs ~$0.20 per hour. Infrared models are 30% more efficient than convection heaters.
Final Thoughts
For most garages, infrared heaters strike the best balance of speed and efficiency, while oil-filled radiators excel in smaller, insulated spaces. Pair your heater with proper insulation (like Energy.gov’s tips) for optimal performance. Stay warm and productive!
