Heating a two-car garage requires a unit that can handle roughly 400-600 square feet with adequate insulation. We researched dozens of models, comparing manufacturer specifications, safety certifications, and aggregated owner feedback to find heaters that deliver consistent warmth without breaking the bank. Below are our top picks, each evaluated for performance, durability, value, ease of use, and safety.
| Photo | Product | Score | Buy |
|---|---|---|---|
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NewAir G56 Electric Garage Heater Best Overall 5600W, 240V, 19,100 BTU, forced air, thermostat |
9.0 | 🛒 Check Price |
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Dr. Infrared Heater DR-968 Best for Silent Operation 5600W, 240V, 19,100 BTU, dual heating (infrared + convection) |
8.7 | 🛒 Check Price |
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Fahrenheat FUH54 Best Value 5000W, 240V, 17,060 BTU, fan-forced, wall-mount |
8.4 | 🛒 Check Price |
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Cadet CEC165T Best for Small Garages 5000W, 240V, 17,060 BTU, fan-forced, built-in thermostat |
7.8 | 🛒 Check Price |
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Dyna-Glo RMC-FA60DGD Best Propane Heater 60,000 BTU, propane, forced air, manual ignition |
8.1 | 🛒 Check Price |
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Heat Storm HS-1500-PHX-WIFI Best Smart Feature 1500W, 120V, 5120 BTU, infrared, Wi-Fi, wall-mount |
7.3 | 🛒 Check Price |
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Lasko 751320 Ceramic Tower Heater Best Budget Option 1500W, 120V, 5120 BTU, ceramic, oscillating, remote |
7.2 | 🛒 Check Price |
1. NewAir G56 Electric Garage Heater: Best Overall
The NewAir G56 is our top recommendation for most two-car garage owners. It pushes 19,100 BTU of forced air, which we found sufficient to raise the temperature from freezing to comfortable in under 30 minutes in a typical 500 sq ft garage based on owner reports. The digital thermostat and remote make it easy to maintain a set temperature without manual adjustments. Safety features include automatic shutoff if tipped or overheated, and the unit is ETL certified.
However, this heater demands a 240V circuit, which may require professional installation if your garage lacks one. It’s also relatively heavy at 30 pounds, so wall mounting is recommended. Skip this if you don’t have 240V access or prefer a quieter radiant heater.
- Powerful 5600W output heats a 2-car garage quickly even in cold climates.
- Built-in thermostat and remote control for precise temperature management.
- ETL listed with overheat protection and tip-over switch for safety.
Pros: Fast heating even in uninsulated garages.; Quiet operation compared to similar forced-air units.
Cons: Requires a 240V outlet; not plug-and-play for standard 120V garages.
2. Dr. Infrared Heater DR-968: Best for Silent Operation
The Dr. Infrared DR-968 uses a unique dual heating system that combines infrared panels with a convection fan. Owner feedback highlights its whisper-quiet operation, making it ideal if your garage doubles as a workshop or home gym. The dual thermostat is accurate, and the unit can run the fan alone in summer. Safety certifications include ETL listing with overheat protection.
On the downside, it heats a space more gradually than forced air heaters, so if you need rapid temperature rise from below freezing, this may not be the best fit. It also requires a 240V outlet. Skip this if you prioritize instant heat over silence.
- Combines infrared and convection heat for even, silent warmth.
- Dual thermostat system maintains temperature within 1 degree.
- Built-in fan can be used without heat for summer air circulation.
Pros: Virtually silent operation; no loud fan noise.; Energy efficient with dual heating technology.
Cons: Heats more slowly than forced air units in very cold garages.
3. Fahrenheat FUH54: Best Value
The Fahrenheat FUH54 offers a no-frills solution for garage heating at a lower cost than many competitors. It delivers 17,060 BTU from a 5000W element, which owner reviews confirm is adequate for most two-car garages with moderate insulation. The fan-forced design circulates air effectively, and the two heat settings provide flexibility. It is ETL listed and includes thermal overload protection.
However, it lacks a remote or digital thermostat, so you must physically adjust the dial. The fan is also noticeably louder than infrared models. Skip this if you want precise temperature control or near-silent operation.
- Reliable fan-forced heating at a competitive price point.
- Rugged steel housing with powder coat finish resists garage wear.
- Adjustable thermostat and two heat settings (2500W/5000W).
Pros: Excellent value for the heating capacity.; Durable build with a 3-year warranty.
Cons: No remote control; manual adjustments only.
4. Cadet CEC165T: Best for Small Garages
The Cadet CEC165T is a compact fan-forced heater suited for smaller two-car garages or those with good insulation. It produces 17,060 BTU, which owner feedback indicates works well in garages around 400 sq ft. The built-in thermostat is functional, and the fan-only mode adds versatility. Safety includes automatic shutoff if overheating occurs.
However, in very cold climates (below 20°F) or drafty garages, it may struggle to maintain warmth. The heating element can also produce a slight odor when first used. Skip this if your garage is large, uninsulated, or you need rapid heating.
- Compact design fits in tight spaces, can be wall or ceiling mounted.
- Built-in thermostat with range from 40 to 80 degrees.
- Fan-only mode for summer use.
Pros: Small footprint, easy to install in confined areas.; Reliable Cadet brand with good customer support.
Cons: Not powerful enough for very cold or poorly insulated garages.
5. Dyna-Glo RMC-FA60DGD: Best Propane Heater
The Dyna-Glo RMC-FA60DGD is a propane forced-air heater that delivers massive 60,000 BTU, making it one of the most powerful options for a two-car garage. Owner reviews praise its ability to quickly raise temperatures in uninsulated spaces. It is portable and runs off a standard 20 lb propane tank, so no electrical installation is needed. Safety features include a low-oxygen sensor and tip-over shutoff.
However, it requires ventilation because it consumes oxygen and produces carbon monoxide. The fan is loud, and propane costs add up over time. Skip this if you want a permanent, vent-free solution or are sensitive to noise.
- Very high heat output for rapid warming of large garages.
- Portable with wheels and handle; runs on standard propane tanks.
- Adjustable thermostat and low-oxygen shutoff for safety.
Pros: Heats a 2-car garage in minutes even in extreme cold.; No electrical outlet needed; ideal for garages without power.
Cons: Produces fumes; requires ventilation (door slightly open).; Loud fan noise; propane can be costly to run frequently.
6. Heat Storm HS-1500-PHX-WIFI: Best Smart Feature
The Heat Storm HS-1500-PHX-WIFI is a smart infrared heater that is great for smaller areas or supplemental heating. It connects to Wi-Fi, allowing you to control it from your phone, set schedules, and monitor energy use. It runs on 120V, so it can plug into any standard outlet without professional installation. Safety includes overheat protection and a cool-touch exterior.
However, its 1500W output is only suitable for well-insulated garages or mild climates. In a typical two-car garage, it will struggle to raise the temperature significantly during winter. Skip this if you need primary heating for a cold garage.
- Wi-Fi enabled for remote control via smartphone app.
- Infrared heating warms objects directly, not just air.
- Plugs into standard 120V outlet; no special wiring needed.
Pros: Smartphone control and scheduling for convenience.; Easy installation with standard outlet; no electrician needed.
Cons: Only 5120 BTU; insufficient for most 2-car garages in cold climates.
7. Lasko 751320 Ceramic Tower Heater: Best Budget Option
The Lasko 751320 is a popular ceramic tower heater that works well as a personal heater or for very small garages. It oscillates to spread warm air, and the remote adds convenience. Safety features are robust for a portable heater. It runs on 120V and is ready to use out of the box.
But with only 1500W, it cannot heat an entire two-car garage in cold weather. Owner feedback confirms it only raises temperature a few degrees in larger spaces. Skip this if you need whole-garage heating; it is best as a supplementary or spot heater.
- Oscillating tower design distributes heat evenly in small areas.
- Remote control and digital display for easy operation.
- Multiple safety features including tip-over and overheat protection.
Pros: Very affordable and widely available.; Quiet ceramic heating; no exposed heating elements.
Cons: Too underpowered for a full 2-car garage; best for spot heating.
Frequently Asked Questions
What size heater do I need for a 2-car garage?
For a typical 2-car garage (about 400-600 sq ft), look for a heater with 17,000 to 20,000 BTU (roughly 5000-5600W) if using electric, or up to 60,000 BTU for propane. The exact size depends on insulation, ceiling height, and local climate. A good rule of thumb is 10 watts per square foot for electric heaters.
Is it safe to use a propane heater in a garage?
Propane heaters can be safe if used with proper ventilation. Always follow the manufacturer’s instructions: keep the garage door slightly open, never use indoors without ventilation, and ensure the heater has an oxygen depletion sensor and tip-over shutoff. Never leave a propane heater unattended.
Do I need a 240V outlet for a garage heater?
Many high-output electric garage heaters require a 240V circuit to deliver enough power. If your garage only has 120V outlets, you are limited to 1500W heaters, which are insufficient for whole-garage heating. You may need to hire an electrician to install a 240V outlet or choose a propane model.
Can I leave a garage heater on overnight?
It depends on the heater. Look for units with automatic thermostat control and safety certifications (ETL, UL). Many electric heaters with built-in thermostats can be left on safely, but it is not recommended for propane heaters due to ventilation needs. Always check the manufacturer’s guidelines.
What is the most energy-efficient garage heater?
Infrared heaters are generally more efficient because they heat objects and people directly rather than wasting energy warming the air. Electric resistance heaters (fan-forced) are 100% efficient at converting electricity to heat, but infrared can feel warmer at lower power. Propane heaters are less efficient and have ongoing fuel costs.
Our Verdict
After researching and comparing specifications and owner feedback, the NewAir G56 is our top pick for most two-car garage owners due to its powerful 5600W output, built-in thermostat, and remote control. For those who prioritize silent operation, the Dr. Infrared DR-968 is an excellent runner-up with its dual heating technology.
