News Article

How to Heat Commercial Workshops or Garages in Cold Weather?

Written By

Powrmatic

06 February 2025

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As winter sets in, heating your commercial workshop or garage becomes essential for both comfort and productivity. Whether you’re working with machinery, repairing cars, or simply need a warm space to operate efficiently, choosing the right heating system is key. However, with various options available, it can be overwhelming to know which heating solution is best for your workshop or garage.

In this blog post, we’ll explore the best ways to heat your commercial workshop or garage efficiently and safely during the cold weather. We’ll also discuss the British Standard 6320:2011, which governs the safe installation and operation of combustion-based heating systems, ensuring that your heating method adheres to essential safety guidelines.

 

1. Electric Heaters

Electric heaters are a common and straightforward option for heating smaller to medium-sized commercial workshops or garages. They are relatively easy to install and operate, and they don’t require ventilation like combustion-based heaters.

Advantages:

  • Quick Installation: Electric heaters can be installed quickly and are often portable, which makes them ideal for spaces that may require heating only intermittently.
  • Low Maintenance: With no combustion process involved, electric heaters require very little maintenance compared to gas or oil-based systems.
  • Clean and Safe: Since they don’t produce fumes or require fuel storage, electric heaters are safe for environments where ventilation is an issue.

Disadvantages:

  • Higher Operating Costs: Electric heaters can be more expensive to run compared to other systems, particularly for large or poorly insulated spaces.
  • Limited Heating Capacity: For larger workshops or garages, electric heaters may struggle to maintain a comfortable temperature, particularly if the space has high ceilings or large drafty areas.

 

2. Gas and Propane Heaters

Gas and propane heaters are popular choices for larger commercial workshops or garages due to their ability to produce significant heat efficiently. These heaters rely on either natural gas or propane fuel to generate warmth and can be highly effective in large, open spaces.

Advantages:

  • High Heat Output: Gas and propane heaters are capable of heating large spaces effectively, making them ideal for larger workshops or garages.
  • Cost-Effective: Propane tends to be more affordable than electricity in many areas, and natural gas, if available, is often one of the most cost-effective heating options.
  • Quick Heating: These heaters can warm up a space relatively quickly, which is ideal in commercial environments where you may need heat on demand.

Disadvantages:

  • Ventilation Required: Gas and propane heaters must be installed with proper ventilation to ensure that any combustion gases (such as carbon monoxide) are safely vented outside. Improper ventilation can lead to dangerous gas buildup.
  • Fuel Storage: You must ensure you have a reliable supply of propane if you’re using a propane heater, and fuel storage must be handled with care.

 

3. Infrared Heaters

Infrared heaters provide another energy-efficient option for heating commercial workshops and garages, particularly when you want to focus heat directly on workers or machinery. Infrared heaters use radiation to heat surfaces and people, as opposed to warming the air.

Advantages:

  • Energy-Efficient: Infrared heaters are highly efficient because they heat objects and people directly, which means less energy is wasted heating the air.
  • Low Operating Costs: Since infrared heaters don’t require fans or ducts, they typically have lower operating costs compared to warm air heating systems.
  • Ideal for Large Spaces: Infrared heaters can be ideal for workshops with high ceilings, as they don’t rely on air circulation and heat surfaces directly.

Disadvantages:

  • Limited Coverage Area: These heaters are effective only in the direct line of sight, so you may need multiple units to heat a large workshop or garage.
  • Initial Cost: Infrared heaters can have a higher initial cost, especially if you need multiple units to heat a large space.

 

 

4. Oil-Filled Heaters

Oil-filled radiators are another option for heating smaller commercial spaces. These units are filled with oil that is electrically heated and then radiates warmth throughout the room.

 

Advantages:

  • Quiet Operation: Oil-filled heaters are quiet and provide consistent heat over a long period.
  • No Fuel Storage: These heaters don’t require any fuel storage like gas or propane systems, and they don’t emit any fumes.

Disadvantages:

  • Slower Heating: Oil-filled heaters take time to warm up a space, so they may not be ideal if you need immediate heat.
  • Limited Heating Capacity: These units work best in smaller, well-insulated spaces and may not be effective for larger commercial workshops or garages.

 

 

5. Heat Pumps

Heat pumps are a versatile option for year-round temperature control, providing both heating in the winter and cooling in the summer. A heat pump extracts heat from the outside air and transfers it inside, providing efficient heating with lower energy consumption than traditional electric heating.

Advantages:

  • Energy-Efficient: Heat pumps are one of the most energy-efficient heating options, using less electricity than other systems to heat the same area.
  • Dual Functionality: Heat pumps can also provide cooling in the summer, making them a good all-year-round solution for temperature control.
  • Environmentally Friendly: Since heat pumps don’t rely on combustion, they are a greener choice compared to gas or propane heaters.

Disadvantages:

  • Performance in Extreme Cold: Heat pumps may lose efficiency in extremely cold temperatures, although there are models designed for colder climates.
  • Installation Cost: Heat pumps can have a higher upfront cost compared to other systems, though they save on energy costs over time.

 

Compliance with BS 6230:2011 for Air Heaters in Hazardous Environments

BS 6230:2011 provides essential safety guidelines for installing gas-fired air heaters in commercial garages and workshops where heavier-than-air flammable vapors may be present. To minimise fire and explosion risks, installations must comply with the following requirements:

Key Safety Requirements:

  • Heater Placement: Must be outdoors or in a separate enclosed space to prevent fire hazards.
  • Air Supply: Heaters must draw only outside air, and air outlets must be at least 1.8 meters above floor level to prevent ignition of vapors.
  • Pre-Purge & Post-Purge: Automatic systems must clear the heater’s plenum chamber to eliminate gas buildup.
  • Electrical Safety: Cables and switchgear within 1.2 meters of the floor must meet BS EN 60079-10-1 standards to prevent sparks.
  • Fire-Resistant Construction: Rooms or enclosures housing heaters must be built using non-combustible materials.
  • Secure Doorways: Access points must have a raised sill of at least 450 mm and self-closing, fire-rated doors to contain flammable vapors.

Following BS 6230:2011 ensures safe and efficient heating in hazardous environments. Always consult a qualified professional for installation, inspection, and maintenance to remain compliant with legal and safety standards.

 

Final Thoughts

Choosing the right heating solution for your commercial workshop or garage depends on a variety of factors, including the size of your space, your budget, and your heating needs. Electric heaters, gas/propane heaters, infrared heaters, oil-filled radiators, and heat pumps all offer unique benefits, but they must be chosen carefully based on your specific requirements.

If you decide to use a gas or propane heater, be sure to adhere to British Standard 6320 and implement proper ventilation, fuel storage, and safety measures such as carbon monoxide detection. Compliance with these standards is crucial to maintaining a safe and energy-efficient environment in your workshop or garage.

By choosing the right heating system and following safety protocols, you can ensure that your space remains warm and functional throughout the cold weather, helping to maintain productivity and reduce heating costs.

 

Arrange your free site survey today with a Powrmatic Expert

Ensure your garage or workshop stays warm and energy-efficient this winter. Powrmatic offers a free site survey to assess your building and recommend the best heating solution tailored to your needs. Let our experts help you maximise comfort and efficiency—schedule your survey today by completing the form below!

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