Best garage heating options

When it comes to heating a garage, there are various options available, ranging from relatively inexpensive solutions to more sophisticated systems. Here are some popular and cost-effective options:

  1. Electric Space Heaters: Electric space heaters are a popular choice for heating garages. They come in various sizes and types, including radiant heaters, ceramic heaters, and fan-forced heaters. Electric heaters are relatively affordable to purchase, and they provide instant heat. However, they can be expensive to operate over the long term, especially in larger spaces.
  2. Portable Propane Heaters: Propane heaters are another common choice for heating garages. Portable propane heaters are relatively inexpensive to purchase and can provide efficient heat output. They typically use disposable propane cylinders or refillable tanks. However, they require proper ventilation to prevent the buildup of carbon monoxide, so using them in well-ventilated areas or installing a venting system is essential.  Danger Will Robinson!
  3. Infrared Heaters: Infrared heaters work by emitting infrared radiation that heats objects and surfaces directly, rather than heating the air. They are often more energy-efficient than traditional convection heaters because they don’t waste energy heating the air in the space. Infrared heaters come in various sizes and configurations, including wall-mounted and portable options.
  4. Wood-Burning Stoves: If you have access to firewood and enjoy the rustic charm of a wood-burning stove, this can be a cost-effective heating option for your garage. While the initial installation cost may be higher than other options, wood-burning stoves can provide efficient heat and potentially lower long-term heating costs.
  5. Insulation and Passive Heating: Improving insulation in your garage can also help retain heat generated from other sources, such as sunlight. Adding insulation to the walls, ceiling, and garage door, as discussed earlier, can help trap heat inside the space. Additionally, passive heating methods such as utilizing south-facing windows to let in sunlight during the day can help warm up the garage naturally.

If I go electric, do I need more power?

Whether you need a bigger circuit breaker or a 240V supply for an electric heater in your garage depends on the power requirements of the heater you choose.

  1. Circuit Breaker Size: Electric heaters typically have wattage ratings, which determine the amount of electricity they draw. You’ll need to ensure that the circuit breaker supplying power to the garage can handle the maximum wattage of the heater without tripping. If the heater’s wattage is within the capacity of the existing circuit breaker, you may not need to upgrade it. However, if the heater’s wattage exceeds the capacity of the circuit breaker, you’ll need to upgrade to a larger one to handle the load safely.
  2. Voltage: Electric heaters can run on either 120V or 240V, depending on their design and power requirements. Generally, larger heaters with higher wattages require 240V to operate efficiently. If you choose a heater that operates at 240V, you’ll need to ensure that your garage has access to a 240V power supply. This may involve installing a dedicated 240V circuit if one is not already available.

Before purchasing an electric heater for your garage, carefully review its specifications to determine its wattage and voltage requirements. Additionally, consult with a qualified electrician to assess your garage’s electrical system and determine whether any upgrades or modifications are necessary to safely accommodate the heater. Electrical safety should always be a priority when installing or modifying electrical equipment.

Are there fire risks related to heating a garage?

There can be. These risks can be mitigated with proper installation, maintenance, and usage practices. Here are some factors to consider to reduce the risk of fire:

  1. Clearance: Ensure that the heater has adequate clearance from combustible materials such as paper, cardboard, wood, and gasoline. Follow the manufacturer’s recommendations for clearance distances, which are typically specified in the heater’s installation manual.
  2. Proper Ventilation: Adequate ventilation is essential when using any type of heater in a garage. Ensure that the garage is well-ventilated to prevent the buildup of combustion byproducts such as carbon monoxide. If you’re using a fuel-burning heater, such as a propane or kerosene heater, make sure there’s proper airflow to prevent the accumulation of fumes.
  3. Installation: Install the heater according to the manufacturer’s instructions and local building codes. If you’re not confident in your ability to install the heater safely, hire a qualified professional to do the job.
  4. Maintenance: Regular maintenance is crucial to ensure the safe operation of the heater. Clean the heater regularly to remove dust and debris that can accumulate on heating elements or vents. Check for any signs of wear or damage, such as frayed cords or cracked casings, and repair or replace components as needed.
  5. Use Caution: Follow all safety guidelines and precautions provided by the manufacturer. Never leave the heater unattended while it’s operating, especially if it’s a portable heater. Keep flammable materials away from the heater, and avoid using extension cords or power strips, which can overheat and pose a fire hazard.
  6. Smoke and Carbon Monoxide Detectors: Install smoke detectors and carbon monoxide detectors in the garage to provide early warning in case of a fire or carbon monoxide leak. Test the detectors regularly and replace batteries as needed.

Be sure to consult with a qualified professional — a licensed electrician and/or HVAC technician as needed — for guidance specific to your situation.

Bottom Line

Ultimately, the most cost-effective heating solution for your garage will depend on factors such as the size of the space, your budget, local climate, and how often you use the garage. It’s essential to consider both the initial cost of the heating system and the ongoing operational expenses when making your decision.