Keep Your Garage Toasty: Learn to Heat it Up Cheaply

To heat a garage cheaply, use a portable space heater or insulate the space and use a radiant heater. Winter is here, and the cold can be unbearable in an uninsulated garage.

It doesn’t matter if you use it as your workspace or storage area; you need to keep it warm. However, using a central heating system to keep a garage warm can be expensive, especially during winter when energy bills tend to skyrocket.

Worry not, as there are ways to heat a garage cheaply. With a few tricks up your sleeve, you can keep your garage warm enough to work in or store items without breaking the bank. In this article, we’ll cover some of the cheapest ways to heat a garage without compromising on warmth and comfort.

Assess Your Existing Heating System

Evaluate Your Current Heating System (If You Have Any)

Before you can start thinking about heating your garage cheaply, it’s important to assess your current heating system, if you have any. Follow these tips to help you evaluate your heating system:

  • Check the type of heating system you have installed in your garage. For instance, do you have a gas-fired or electric furnace, ductless heating, wood stove, or radiant floor heating system? Knowing what type of heating system you have in place will help you understand the heating requirements of your garage.
  • Examine the condition of your current heating system. Are there any signs of damage, wear and tear, or malfunctioning components? If so, it’s usually more cost-effective to repair or replace a heating system that is not functioning correctly than it is to try and supplement with additional heating.
  • Consider the age of your current heating system. Most heating systems have a lifespan of 15-20 years. If your heating system is older than that, it’s most likely not operating at maximum efficiency. In this case, it may be time to upgrade to a more energy-efficient heating system.

Identify Any Inefficiencies Or Areas For Improvement

It’s crucial to identify any inefficiencies or areas for improvement in your current heating system. This will help you optimize your existing system and avoid additional costs. Here are some points to consider:

  • Check for any air leaks in your garage, such as gaps around the doors and windows. Use weather stripping, caulk, or expanding foam to seal these gaps and prevent cold air from entering your garage.
  • Insulate your garage walls and ceiling. This will help to reduce heat loss and make your garage more energy-efficient. Use fiberglass batt or blown-in insulation to achieve this.
  • Consider upgrading to a programmable thermostat. It’s an energy-efficient way to control the temperature in your garage and reduce your energy bills.
  • Install ceiling fans in your garage. This is especially useful if you have a high ceiling. A ceiling fan can help to circulate hot air and reduce the need for additional heating.

Understand How The System Works To Figure Out Practical Ways To Optimize It

If you want to optimize your current heating system, it’s important to understand how the system works. Here are some practical ways to achieve this:

  • Study the owner’s manual for your heating system. It will help you to understand the system’s features, functions and how to operate it properly.
  • Regularly replace air filters in your heating system. Clogged air filters restrict airflow in your heating system, reducing its efficiency.
  • Clean the heating system ductwork regularly. Dust, dirt and debris accumulate in the ductwork and reduce the efficiency of the heating system.
  • Have your heating system maintained regularly by a licensed hvac technician. Regular maintenance will help to identify potential issues before they become a major problem.
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By evaluating your existing heating system, identifying inefficiencies or areas for improvement and understanding how the system works, you can figure out practical ways to optimize it and heat your garage cheaply.

Insulate Your Garage

The Importance Of Insulation In Keeping A Garage Warm

If you’re planning to spend time in your garage during the cold months, it’s essential to insulate it properly. Proper insulation will help keep the temperature inside your garage at a comfortable level, as well as protect your belongings from damage caused by extreme temperatures.

Here are the reasons why insulation is essential in keeping your garage warm:

  • Insulation helps to keep heat inside during winter and outside during summer.
  • It helps to reduce moisture levels, which can lead to mold and mildew growth.
  • Insulation can reduce noise levels from inside and outside the garage.
  • Insulation can help improve the energy efficiency of your home.

Types Of Insulation Available

There are several types of insulation you can choose to insulate your garage, including:

  • Fiberglass batts: These are made from glass fibers and typically come in rolls. They are relatively easy to install, but you need to handle them carefully as they can cause skin irritation.
  • Foam board: This type of insulation consists of polystyrene, polyurethane, or polyisocyanurate, depending on the brand. It’s easy to install but requires accurate cutting to fit the boards correctly.
  • Spray foam: This is a liquid that expands and hardens when sprayed onto surfaces. It provides an airtight seal, but it can be challenging to install yourself.

How To Install Insulation In Your Garage

Now that you know the types of insulation available let’s take a look at how to install insulation in your garage. Here are the step-by-step instructions:

  • Measure the garage walls and ceiling to know how much insulation you need.
  • Wear protective clothing and gloves when handling insulation.
  • If using fiberglass batts, start by placing them between the studs on the walls. Ensure they fit snugly and use a straight edge to cut them to size if need be.
  • If using foam board, begin by cutting the boards to size and fitting them into the studs on the walls.
  • For spray foam, follow the manufacturer’s instructions.
  • For the garage door, measure and cut the insulation to size, and attach it to inside the door using adhesive.
  • Repeat the process for the ceiling, but you’ll likely want to hire a professional for this.

Properly insulating your garage is essential to protect your belongings and make it a usable space during cold winter months. Which insulation type you choose will depend on your budget, skill level, and personal preference. Regardless of which you choose, make sure you follow all instructions carefully when installing it.

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Consider Alternative Heating Methods

Heating a garage during the colder months can be an expensive affair, especially if you rely on a traditional hvac system. Fortunately, there are alternative heating methods available that are much more affordable. Below are some popular options for heating your garage without breaking the bank.

Space Heaters

Space heaters are a popular choice for heating garages as they can be very effective in maintaining a comfortable temperature in a small space. They are compact and portable, so you can move them around as needed.


  • Easy to use and set up
  • Available in a range of sizes and styles
  • Inexpensive to purchase
  • Can heat a small space quickly


  • Can be a potential fire hazard
  • Not suitable for larger garages
  • Can increase your electricity bill if used frequently

Tips for safe and effective use:

  • Always follow the manufacturer’s directions when using space heaters
  • Do not leave the heater unattended when it is turned on
  • Keep flammable materials away from the heater
  • Do not use space heaters to dry clothes or heat up food

Radiant Heaters

Radiant heaters work by directly heating the objects and people in the room, rather than the air. They are very energy efficient and can be a great way to heat a garage without spending a lot of money.


  • Efficient and cost-effective
  • Provide focused, targeted heat
  • Quiet operation
  • Do not dry out the air


  • Not suitable for large garages
  • Meant for direct, local heating and not for heating entire rooms

Tips for safe and effective use:

  • Keep the heater at least 3 feet away from flammable materials
  • Always turn off the heater when you’re not in the room
  • Do not use the heater as a drying rack or to heat up food

Wood Stoves

Wood stoves are a popular choice for heating garages as they are very efficient and can provide plenty of heat. They are relatively inexpensive to purchase and, depending on where you live, wood can be an affordable fuel source.


  • Very efficient at heating large spaces
  • Can burn a variety of fuels, including wood and coal
  • Provide a charming aesthetic to the garage


  • Can be difficult to install
  • Requires venting and regular maintenance
  • Can be a fire hazard if not installed and used correctly

Tips for safe and effective use:

  • Always have a professional install the stove and venting system
  • Keep the stove and surrounding area clean and free of debris
  • Do not leave the stove unattended when it is turned on
  • Properly dispose of ashes and other combustible materials.

Now that you are familiar with alternative heating methods, you can choose the option which best suits your needs and your budget. Keep in mind that no matter which method you choose, safety should always be your top priority.

Implement Energy-Saving Techniques

Maintaining a comfortable temperature in your garage can be a challenge, especially during colder months. However, you don’t need to break the bank to achieve this. Here are some energy-saving techniques that you can implement to keep your garage warm:

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How To Reduce Your Energy Bill By Conserving Heat

  • Weatherstripping: Install weatherstripping around the garage door to prevent warm air from escaping and cold air from entering. This will retain heat in your garage, making it more comfortable and reducing your energy bill.
  • Sealing air leaks: Check the walls, ceiling, and floor for any cracks or gaps allowing heat to escape. Use caulking or foam sealant to seal such leaks.
  • Managing thermostat settings: Adjust the thermostat settings to lower temperatures when the garage is unoccupied and increase when in use. This approach can significantly reduce your energy bills.

Tips For Implementing These Techniques In Your Garage

  • Weatherstripping installation: Cut the weatherstripping to match the length of the door, then attach it with adhesive or screws. Be sure to close the door and check for any spots that the weatherstripping doesn’t seal properly.
  • Sealing air leaks: Use a caulking gun or foam sealant to fill any gaps or cracks in the walls, ceiling, or floor. Check for any open spaces around electrical outlets, pipes, or vents.
  • Managing thermostat settings: Install a programmable thermostat so that you can set temperature adjustments before you go to sleep or leave home. Adjusting the temperature can also be done manually in the garage if you are working there.

How These Techniques Can Help You Keep Your Garage Warm Without Breaking The Bank

Implementing these energy-saving techniques in your garage, can significantly reduce your energy bill. Sealing air leaks prevents loss of stored heat, while weatherstripping helps trap that heat inside. Allowing temperature adjustments saves energy when the garage is not in use.

Such energy-saving techniques prove to be practical, cost-effective, and environmentally friendly. You can keep your garage warm and comfortable throughout the year without breaking your budget.

With the above techniques, you can easily heat your garage without spending a lot of money. These energy-saving techniques can be the difference between a warm or cold garage while keeping your energy bills at bay. Implementing these techniques will ensure you have a comfortable garage throughout the year.


To sum up, it’s unquestionable that heating a garage can be an expensive task. However, with a little bit of creativity, it can be done cheaply and efficiently. We have explored various ways in which this can be achieved in this post.

From using space heaters to insulating garage doors and walls, there are many affordable options available. We have also identified some safety measures that are necessary to put in place when heating a garage. By implementing these measures, you can keep your garage warm without compromising your safety.

Investing in energy-efficient heating options can also help save on energy bills in the long run. It’s our hope that these tips will come in handy when looking to heat your garage without breaking the bank.


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