10 Best Heater For Uninsulated Garage -Buyer’s Guide


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The temperature in your garage may be quite cold when you’re working out, depending on your location. It is very convenient to have a space heater that can generate a lot of heat in a short period of time.

When you have a garage without insulation, and it gets very cold there, what kind of heater should you choose? Wintertime working, or even working during a chilly evening, is slow and uncomfortable. You don’t have to worry about freezing. Instead of staying warm, grab one of these great space heaters. If you need to do what needs to be done, you can’t let the weather stand in your way.

It can be annoying to have cold fingers and hands. When temperatures get too cold, however, they can be painful. When your hands have low circulation, you may suffer nerve damage or be unable to work. Shivering can only be prevented to a certain extent by a jacket. It is possible to keep warm in the garage without causing any harm to yourself.

Choosing a garage heater will depend on the size of your garage, as well as the safety features and portability of the heater. The best heater for an uninsulated garage can be found by reading these tips and reviews.

10 Best Heater For Uninsulated Garage





1. Martin Direct Vent Propane 

Best Overll

  • Customizable

  • Warmth

  • Elegant & Efficient

2. Comfort Zone 5000W Fan-Forced

  • Designed Sensor

  • Changeable Installation

  • Ceiling-Mounted

3. Dyna-Glo WK24BK 23,800 BTU

  • Affordable 

  • Easy To Operate

  • Strongly Built

4. Lasko 5160 Ceramic Tower

Best Budget

  • Patent-Protected

  • Constructed Fan

  • 3-year  Guarantee

5. Mr. Heater MH75KTR Kerosene

  • Six-setting of Temp

  • Affordable,

  • Elevated Fan

Best Affordable

6. Dr. Heater DR966 240-volt 

  • Pressure Setting

  • Softly Circulates Heat

  • Roof Installed

7. Mr. Heater 30,000 BTU Vent

  • Combustible

  • Secure & Effective

  • Optional Blower Fan

8.PELONIS Electric 1500W Oil Filled

  • Customizable Temperature

  •  Lcd Display

  • Noiseless Functionality

9. Dr. Infrared Heater DR-988

  • On-demand

  • Control panel

  • Outperform Power Supply

10. Mr. Heater Corporation Convection Heater

  • Propane-Powered

  • Temp Controller 

  •  29 h Working Capacity

1. Martin Direct Vent Propane Wall Furnace Heater thermostat 20,000 Btu – Glass


  • Item Weight: 50 Pounds
  • Brand: Martin
  • Heating Method: Convection
  • Power Source: Gas Powered
  • Heat Output: 11000 British Thermal Units

A pleasing aesthetic is combined with functionality in our Upgrade Pick. A fireplace-style propane heater featuring a die-cast aluminum front grill and a beautiful glass ceramic panel that reveals the beauty of the flame.

The Martin Direct Vent Propane Wall Furnace Heater is ideal for garages without insulation. CSA certification allows it to be used in the United States and Canada.

There are two thicknesses of walls mounted on the heater: 4.5 inches and 12.63 inches. An optional vent installation kit is included, and the direct-vent system increases heating efficiency by using air from the outside.

Because direct-vent heaters expel noxious fumes outside, they are safer and produce less pollution. In the uninsulated garage, the heater doesn’t use much or any air, so oxygen levels won’t be low.

The maximum coverage of this model is 538 square feet and it has a BTU capacity of 20,000. It is suitable for medium-sized garages. It has a built-in thermostat, controlled by a dial on top, which keeps the temperature steady regardless of temperature fluctuations.

As well as an automatic shut-off mechanism and mounting brackets, this gas garage heater is also protected against extremely high temperatures.

Key Features:

  • In addition to being an exclusive accessory on the market, the ceramic glass window is available on 11,000 Btu and 20,000 Btu indoor propane gas heaters
  • The product is certified for use in the United States and Canada and features a die-cast aluminum construction and a glass ceramic window for extra safety.
  • Direct vent gas heaters are stylish, economical, and clean, producing safe, clean energy.
  • A Wall heater that produces 20,000 BTU provides warm, adjustable heat to living or working spaces. Thermostat with low and high settings (built-in)
  • Installation is easy: We recommend installing this heater with a gas fitter to heat your home efficiently and with a low maintenance requirement. There is a limit of 4-1/2″ (11.5 cm) for the wall thickness, and it cannot exceed 12-5/8″ (32 cm) for the wall thickness.
  • Direct-vent space heaters are considered the best choice for garages without insulation.
  • A sleek, modern design and temperature modulation make it highly efficient and attractive.
  • A qualified HVAC professional may be required for installation, which adds to the already high price.

2. Comfort Zone CZ220 5000-Watt, 240v Hard Wired Fan-Forced Ceiling Mount Heater with Dual Knob Controls and Safety Overheat Protection, ETL Compliant, Grey


  • Brand: Comfort Zone
  • Color: White
  • Special Feature: Manual
  • Indoor/Outdoor Usage: Indoor
  • Form Factor: Cabinet
  • Power Source: Corded Electric

Comfort Zone CZ220 is made from rugged steel and is built to withstand harsh environments for long periods of time. In poorly insulated areas, this fan-forced heater can withstand quick spikes and drops in temperature.

 It’s made from heavy-gauge steel. The mounting angle of the 240 Volt heater can be adjusted to direct airflow toward any area you choose.

You can turn off the machine or just adjust the thermostat with ease using the dual knob in the front. Space-saving Comfort Zone CZ220 features ceiling-mountable mounting and hardwired installation for maximum efficiency in busy work areas.

A built-in sensor on the Comfort Zone CZ220 will automatically turn off the heater, preventing overheating, when the temperature reaches an unsafe level. Whenever it is in use, power light will illuminate, making it easy for you to remember to turn it off after use.

Key Features:

  • The fan-forced heater can be mounted on the ceiling or hard-wired, saving important storage space in crowded warehouses, garages, and basements.
  • This system features louvers, adjustable mounting angles, and a fan-driven design that delivers airflow where it is needed most.
  • Heavy gauge steel is used to construct the body of this commercial heater, so it can withstand fluctuating temperatures in poorly insulated areas.
  • This ceiling mount heater has a dual knob thermostat that allows you to quickly set the temperature to your preferences.
  • Built-in heat sensors prevent overheating, a power indicator light indicates usage, and a temperature sensor ensures the device doesn’t overheat.
  • Cleanable removable grille assembly on front of the body made from heavy gauge steel
  • It features an adjustable louver to direct the output and a fan-forced circulation system for a wide area of circulation
  • In terms of value, this heater is excellent
  • Simple circuitry makes installation easy
  • Several feet away, the airflow can be felt
  • There is a problem with the fan blades coming unbalanced and coming loose easily
  • It is also common for fan nuts to become loose over time

3. Dyna-Glo WK24BK 23,800 BTU Indoor Kerosene Convection Heater, Black


  • Brand: Dyna-Glo
  • Power Source: Kerosene
  • Color: Black
  • Heating Coverage: 1000 sq ft
  • Heating Method: Convection
  • Item Weight: 0.01 Ounces

A 1000 square ft. or 93 square meters uninsulated area can be heated with this product from Dyna-Glo at up to 23,800 BTU per hour. Kerosene burns with 99.9% efficiency when it is used in this machine, but it only requires one thousand gallons of it. 

Using the 1.9-gallon fuel tank, it can provide 8-12 hours of support. Kerosene powers this garage heater, so there is no electricity required to generate heat.  It is easy to use this Dyna-Glo on a daily basis. As an example, there are basements, cabins, garages, museums, and workshops that need continuous heating, but do not have forced air heating.

With one touch shutoff and automatic ignition, this heater is extremely convenient to operate. With the fuel gauge, you can check how long the machine has been running before refueling. The product is also eco-friendly and economical. You can use it for a specific area to reduce your heating bill.

Key Features:

  • 23,000 BTUs per hour.
  • It can heat up to 1,000 square feet.
  • Electricity is not required.
  • You can save money on utility bills.
  • Reliable & Perfect for use in emergencies or on a daily basis.
  • Warm only the areas that are occupied to reduce heating bills.
  • One-touch shutoff and automatic ignition make operation convenient.
  • Heats your home more efficiently
  • The product works well does what it is supposed to do
  • Construction that is sturdy
  • The price is high
  • Only suitable for kerosene of a certain type

4. Lasko 5160 Ceramic Tower Heater with Remote Control, Black 5160


  • Brand: Lasko
  • Color: Black 5160
  • Special Feature: Oscillating Ceramic Heater
  • Heating Method: Convection
  • Power Source: AC
  • Heating Coverage: 300 square_feet

This 23-inch tower-styled space heater comes in silver and gray finishes, designed to be a freestanding unit for uninsulated garages.

The long limited warranty of 3 years provided by Lasko 5160 Ceramic Tower Heater makes it a notable product.

Warm air is evenly distributed in your uninsulated garage with the help of patented blower technology and oscillation features. The Lasko 5160 Ceramic Tower Heater is capable of heating up to 300 square feet with a BTU capacity of 5,120.

A digital display and 6 intuitive buttons are located at the top of the unit. There is also a remote control with two AAA batteries that can be used to set the oscillation, timer, output level, and other features, such as the Auto setting.

The heater can also be programmed to operate only when needed with an eight-hour timer, or you can set the heat level yourself with two selectable settings.

There is a gentle fan-like sound coming from this heater. Despite the front grill getting a bit warm, the ceramic heating element does not overheat easily. A supplementary heat source is recommended for this model and it should not be installed in the bathroom.

Key Features:

  • With a patented comfort system, this ceramic tower heater measures 23 inches in height.
  • Penetrating air velocity with patented blower technology.
  • For extended warmth, the ceramic element is elongated.
  • An on-board storage area for the remote control. The area heated is 300 square feet.
  • Throughout the room, warm air is evenly distributed by widespread oscillation.
  • A panel or the attached remote control can be used to control it, and it is ETL-listed, quiet, cost-effective, and stylish.
  • A 3-year warranty is also a plus
  • Since this heater is in the shape of a tower, it’s surprising that it doesn’t have any features preventing it from tipping over.
  • There is also a downside to using the thermostat only on high settings.

5. Mr. Heater MH75KTR Kerosene Heater, Black


  • Brand: Mr. Heater
  • Power Source: Kerosene
  • Color: Black
  • Heating Coverage: 1750 sq ft
  • Heating Method: Fan_&_forced_air
  • Item Weight: 37.9 Pounds

With incredible heating power, the MH75KTR from Mr. Heater will bring warmth to any room. When the tank is full, this item on our list can run for 11 straight hours at 75,000 BTUs.

When photo CAD cells detect any unsafe situation, the high-limit safety switches automatically shut off. The heater can heat about 1875 square feet of space, making it suitable for uninsulated garages, workshops, etc.

A warm breeze is formed when cool air is pulled into the room and turned into forced air. In addition to providing instant heat, the machine is efficient in its operation. Despite being made of steel, the heater is extremely durable.

There are six different temperature settings on the thermostat included in the package. This heater has a 6-gallon fuel tank that can provide fuel for a long time. When the heater needs fuel, it will display a fuel gauge.

Easy on/off switch is made possible by the on/off power switch. Carrying it away is made easy with the ergonomic handle attached. This heater can be installed in just five minutes due to its easy installation system. In cold weather, it provides the best starting service while using JP8, 1 and 2 fuel oils, 1 and 2 filtered diesel fuel, and kerosene.

Key Features:

  • Stainless steel.
  • Originally imported.
  • It is economical and efficient to provide instant heat.
  • When the tank is full, it will operate for approximately 11 hours.
  • Features a heavy-duty fan and rugged, durable steel construction.
  • The fixed heat output of this unit is 75,000 BTUs.
  • It features a thermostat, an on/off switch with a light, a fuel gauge, and a six-function LED diagnostic system.
  • There is no need to worry about accidents because safety features ensure safe operation
  • Heat is distributed efficiently and quickly by pointed heating
  • You can choose between multiple fueling options
  • Product that is expensive

6. Dr. Heater DR966 240-volt Hardwired Shop Garage Commercial Heater, 3000-watt/6000-watt, DR966 240V


  • Brand: Dr Infrared Heater
  • Item Weight: 27 Pounds
  • Power Source: Corded Electric
  • Color: Gray
  • Heating Coverage: 600 sq ft

In addition to being a great source of auxiliary or primary heat, this product is also a good fit for dorms, churches, hospitals,  stores, schools, warehouses, factories, and garages. Because the electric heating elements are made with low sheath temperatures, it provides a long service life and uniform heat.

DR966 is a large, dynamic eight-inch fan that distributes warmth gently throughout an area with maximum airflow but little noise or turbulence. 

The heater is completely enclosed and thermally protected, and its motor is permanently lubricated for long-lasting low maintenance use. With the adjustable thermostat, you can adjust the temperature according to your preference.

A five-way louver system allows for easy airflow adjustment on the front cover, which is made from rugged stamped steel. With the heater, you can mount it on either the wall or the ceiling using the mounting brackets. There is no power cord included with the Dr. Heater DR966.

Key Features:

  • Commercial Electric Heater 3000/6000W, 240V, Single Phase. The heater operates at 6000W in high power mode, and 3000W in low power mode
  • This heater is UL/CUL Listed and comes with a bracket
  • The unit is hardwired and does not include a power cord. Its overall dimensions are as follows: Top to Bottom: 14.5″ – Side to Side: 13″. Front to back depth: 14.5″.
  • With a HIGH and LOW setting, this thermostat is adjustable. This 8-inch dynamic fan distributes heat through your space in a gentle and efficient manner. It provides maximum air flow while minimizing turbulence and noise.
  • Airflow can be directed with 5 adjustable louvers
  • Standing a few feet away, it produces a good amount of heat
  • Unlike a box fan, this fan is more loud than expected
  • It takes a long time to warm up at the beginning

7. Mr. Heater 30,000 BTU Vent Free Blue Flame Natural Gas Heater MHVFB30NGT


  • Brand: Mr. Heater
  • Color: White
  • Heating Method: Forced Air
  • Power Source: Gas Powered
  • Heating Coverage: 1000 sq ft

The Mr. Heater MHVFB30NGT is fitted with wall mounting hardware, adjustable legs, and a thermostat that can be adjusted to the desired temperature.

This blue flame vent-free heater distributes warm air from the ceiling instead of using infrared technology. An optional blower fan can be purchased to speed up the heat circulation, and there is electronic ignition powered by an AA battery under the red switch.

In addition to heating 750 square feet of garages, the Mr. Heater MHVFB30NGT produces 30,000 BTUs.

Natural gas garage heaters with blue flames are considered some of the best for uninsulated garages. This product is certified for safety and performance by the Canadian Standards Association (CSA).

This product features an Oxygen Depletion Sensor (ODS) for automatic shut-off when the oxygen level drops below a certain level. As long as you mount the heater within a 4,500 feet operating elevation limit, the safety sensors will automatically turn off the heater when oxygen levels drop to 18.5%, or less.

In addition, this vent-free natural gas model is not approved for use in Canada or California and is not recommended for use in bedrooms, bathrooms, recreation vehicles, or in recreational vehicles.

Key Features:

  • Natural gas heater providing 30,000 BTUs to heat spaces up to 1,000 square feet
  • Suitable for use only in natural gas vehicles but not in bathrooms or bedrooms
  • Detection of low oxygen levels automatically (ODS). Certified by CSA. Unvented heaters
  • Convection heat is provided by a blue flame burner. The maximum elevation (ft) is 4500 feet. 0.30 MCF of fuel consumed/burned per hour
  • Pilot/ODS may shut down the heater over 4,500 feet above sea level. Includes thermostat, legs, and mounting hardware for mounting on the wall.
  • The natural gas garage heater can be mounted on walls or be used as a standalone, and is equipped with safety sensors and an integrated thermostat.
  • The connection emits a gas odor, so make sure that it is secure.
  • Moreover, there is no fan inside, as well as a gas connection at the base of the heater, which is uncomfortable.

8. PELONIS Electric 1500W Oil Filled Radiator Heater with Safety Protection, LED Display, 3 Heat Settings and Five Temperature settings. Perfect for for Home or Office


  • Brand:  PELONIS
  • Color:  Silver
  • Special Feature: Manual
  • Heating Method:  Forced Air
  • Power Source:  Corded Electric
  • Item Weight:  16.09 Pounds

For small and medium-sized rooms, the Pelonis NY1507-14A is an excellent mid-range space heater that heats quickly and effectively. In order to warm very large rooms, you will need something more powerful.

From Pelonis, a pioneering company in heater technology comes the Pelonis NY1507-14A portable oil-filled radiator. In addition to being a small to medium-sized room heater (up to 162 square feet), this lightweight heater has an electronic control, and it is covered by a one-year warranty. 

At Amazon, the Pelonis NY1507-14A sells for less than $100, making it a good choice for midrange space heaters. Fast-warming Pelonis NY1507-14A will keep you warm and cozy if you like optimal temperature with an energy-efficient design.

 With its self-regulating heat output, the space heater produces radiant heat efficiently and has settings that optimize the power to achieve a temperature that can be customized to your preferences. Moreover, there is no need to refill or replace the oil.

You won’t have to leave the couch to turn up the heat with the Pelonis NY1507-14A because it has an easy-to-program panel, a 10-hour digital timer, as well as a remote. As the power indicator light indicates, the unit is turned on, and the radiator is protected from overheating due to the built-in safety features.

As an added safety feature, it has an overturn safety switch that automatically shuts off the heater if it tips over, making it perfect for kids and pets.

Key Features:

  • There are three heating options (900w, 1500w, mode) and five temperature settings (65F, 70F, 75F, 80F, 85F) for customizing heat settings that maximize efficiency and warmth.
  • With features such as an LCD screen, remote control, programmable thermostat, and 10-hour timer, you will find the device easy to operate.
  • [Manufacturer] You were offered a 1-Year warranty with your purchase because they are confident in this digital LCD heater.
  • Indicator light indicates whether or not the unit is on, as well as a built-in safety switch to prevent the heater from overheating if it’s knocked over accidentally.
  • This Polonia space heater has four swivel caster wheels that can rotate 360 degrees to provide easy portability.
  • Keep your space warm and cozy with no annoying heater sounds that disrupt your sleep, work, meditation, chat, and anything else that requires peace.
  • Due to the fact that its heating medium is oil, it usually takes longer than fan heaters to heat up, but it provides more gentle and lasting warmth.
  • A thermostat that is digital
  • A stylish design
  • A high level of energy efficiency
  • Beeps from the control panel are a little loud

9. Dr. Infrared Heater DR-988 Heater, Standard, red


  • Color: Red
  • Brand: Dr Infrared Heater
  • Heating Method: Fan &, Radiant
  • Power Source: Manual
  • Heating Coverage: 600 sq ft

DR-988 features an infrared heating element and a very portable design, which make this one of the best industrial heaters on the market. 

A thermostat is built into the unit, which can be adjusted from high to low, making it ideal for use on a construction site, in a garage, or in a basement. As well as providing consistent warmth, it has a fan.

A durable and reliable heater, the Dr. Heater DR-988 is energy-efficient and has advanced dual heating so that large rooms can be heated evenly without excessive cold or heat.

 Integrated cord storage and a carry handle make this a very portable unit allowing you to keep your storage area tidy. The grills have finger-proof discharge and intake grills, as well as overheat protection and a high-temperature heating limit. 

5600 watts of power and 240 volts allow this unit to heat a room up to 600 square feet. Dr. Heater Dr-988 should not be used in a residential area and requires 220V power.

Key Features:

  • Portable electric heater with infrared technology, 4200 watts and 5600 watts, 208 to 240 volts
  • Switches for turning on the fan or controlling the thermostat. This power cord is 6 feet long and has a NEMA #6-30P plug.
  • This unit produces 18,500 BTUs at full power
  • It measures 12″ x 12″ x 16″ high
  • Providing consistent heat in bedrooms, it works well
  • A room can be heated in 15 minutes with this unit
  • Moving and storing it is a breeze
  • Sometimes it vibrates and isn’t very quiet
  • It doesn’t look very attractive

10. Mr. Heater Corporation Convection Heater, 75k to 200 BTU/HR


  • Brand: Mr. Heater
  • Color: Silver
  • Special Feature:  Portable
  • Heating Method; Convection
  • Power Source: Gas Powered, Corded Electric
  • Heating Coverage: 5000 sq ft

It heats up by convection and is an excellent-looking garage heater. With a propane tank weighing 100 lbs, it can produce between 75,000 and 200,000 BTU per hour. Heat is provided continuously for 29 hours over a 5000 square foot area.

With this heater, installation is covered, so you don’t need to worry. As well as a P.O.L tank, a 10 ft. hose, and a regulator for regulating the temperature, it is equipped with a P.O.L tank, a hose, and a regulator. Since it runs on propane, it does not need to be connected to an electric outlet.

You have been provided the perfect way to heat the room from the very beginning with the standing pilot feature. Flames burn continuously for a long time and keep the room warm. Plugging the propane hose and regulator into the fuel tank is all that is required with the plug and power method.

For ease of assembly, the heater is equipped with a chamber that locks instantly. Piezo push-button igniters never run out with this product. An automatic thermoelectric safety valve has been incorporated in order to switch off the flame in the event that the fire extinguishes.

Key Features:

  • A propane-fueled unit that can produce 75,000 – 200,000 BTU per hour
  • For increased safety, a standing pilot is used. The run time (hours at maximum BTU) is 2.16.
  • It can heat up to 5,000 square feet. Ft. This machine runs on a 100 pound battery for 29 hours. 
  • The propane tank
  • A 10 ft. hose and regulator are included, as well as a P.O.L. tank connection.
  • Fully assembled and ready to use without electricity
  • Fully installed, it is ready for use right out of the box
  • Power supply is safe and prevents fires with the standing pilot
  • Functions easily by plugging in
  • The heat is only distributed in one place and does not spread to other areas.

How To Choose Best Heater For Uninsulated Garage?

There are a few factors you should keep in mind before you buy a heater for a garage that is not insulated. Based on these factors, you will be able to determine which heater is right for you.

1. Heating Method

Uninsulated rooms can be heated using a heater in a few ways. When compared to electricity, natural gas and propane are more cost-effective. It must, however, be installed by a licensed individual with permission from the local authority. Heat may be provided by the following methods:

  • Radiant Heater:  Infrared rays are used to heat the room with radiant heaters. Spot heating is achieved by diversifying the heat outwards using polished reflectors. A campfire is a good analogy. An air-forced heater blows air, but radiant heaters don’t. Natural gas, propane, or electricity can all be used as fuels for this heating method.

Those who like pointed heating methods in a particular direction, such as DIYers or woodworkers, should consider this heating method. As a result of this method of heating, dust is not blown up and ongoing projects are not damaged. There are a variety of sizes and prices available for radiant heaters that can be mounted or carried.

  • Forced-Air Heaters: A forced-air heater distributes heat evenly throughout a room or garage with the help of a fan. Various sizes and prices are also available, as well as different methods of powering the heaters, including AC power, natural gas, gasoline, or natural gas. The natural gas line is connected to it when it is powered by gas.

Whenever fan-forced heaters require airflow, as they produce water vapor and fumes, they blow dust particles into ongoing projects, ruining them by generating a lot of dust. These types of heaters are ideal for garages or storage rooms where woodworking is prohibited or DIY projects aren’t permitted.

  • Convection Heaters: Convection heaters use the principle of enclosed flames to heat an area without any fan power, using the convection heating process. Despite the fact that it takes a little while for it to warm up, this heater is pretty efficient at heating a room, even though it does not provide intense heating like a radiant heater or a forced-air heater. Generally, convection heaters come in either baseboard mounting or portable forms, and you can find them in all shapes and sizes.

2. Power

BTUs (British Thermal Units) or Watts are commonly used to measure the power of industrial heaters. If there isn’t enough insulation in the room, you may want to bring in a heater that has a bit more power. On the opposite side of the heater, winter temperatures are lower without a central heating source.

3. Safety Features

As well as considering the electrical features, safety measures should also be considered when buying a garage heater.

  • Exterior with CoolTouch: The heater’s outer material is plastic or fiberglass, both of which conduct heat poorly, so it remains cool even after producing heat. Portable or wall-mounted heaters are most likely to have these exteriors.
  • Protects against overheating: If the temperature reaches a certain limit, the power button will be automatically turned off.

4. Hardwired or Plugged-in

In a compact room, hardwired installation saves valuable space as it is fixed to a wall or ceiling. In order to connect the hardwired heater, there needs to be the main power source.

In comparison to hardwired heaters, plug-in heaters require no wiring and are faster to set up. In particular, they are ideal for people who don’t use them frequently.

5. Type

A space heater’s power source and heating mechanism determine the best one for an uninsulated garage. Infrared, convection, and panel heaters all use various modes to transmit heat.

Due to their use of fans to distribute the heated air throughout the room, convection heaters are considered to be the most energy-efficient and consistent models. Their coverage is greater, but they are slower and noisier.

A quartz heater or radiant heater is another form of infrared heater that is ideal for small spaces since it quickly heats both the ambient air and the people in the room. Turning off an infrared heater will make you feel cold.

By combining radiant and convection technology, micathermic panel heaters ensure fast and efficient circulation of warm air throughout the room without using fans. Lightweight, compact, and energy-efficient, they are quick and quiet.

Radiators with an oil fill: Heat is produced permanently by oil-filled reservoirs in portable electric models. The heat is distributed by natural air circulation, so they are hot to the touch and slower. The slim, compact design makes it easy to carry around, and they never need to be refilled

Using ceramics: To heat up large garages and maintain target temperatures, they use an electric model that utilizes a self-regulating ceramic. The surfaces remain cool.

These heaters are powered by propane, natural gas, or liquid petroleum gas.

Since they connect to a gas line and require proper ventilation, natural gas garage heaters for uninsulated garages need professional installation. The cost of installation is higher, but maintenance is lower since they do not require refueling.

It is necessary to purchase gas tanks and hose attachments separately for propane products. Electronic ignition may be included for quick start-up and adapters for custom attachments. When there is no power, they can be carried or mounted on walls, making them convenient to use during a power outage.

6. Coverage area

A model’s coverage area is the maximum area it can heat effectively and efficiently, expressed in square footage.

For effective garage heating, your primary heating source should generate at least 10 watts per square foot. Nevertheless, this rule may vary depending on whether your space heater provides primary or supplemental heat, and what type of heating technology it uses.

It is also possible to reach a wide area with some portable products. You should take measurements of your garage, considering things such as the height, insulation level, and window count that may indicate a larger heater is necessary.

In order to achieve optimal performance, it would be best to choose a model that offers more coverage than you need, as the model will be able to handle sudden changes better. Even when the heater is running on low settings, the output will still be maximized and you will be able to reach your target temperature in a shorter period of time.

Avoid unnecessarily consuming large amounts of energy by adjusting the coverage a little higher than recommended. Too small a heater is also a bad choice because it will overheat due to excessive use.

7. BTUs/watts

The British Thermal Unit (BTU) is a standard measurement used to determine how much heat can be produced by a particular heater. If you need to maintain a consistent temperature and withstand temperature fluctuations in garages without insulation, crawlspaces, and high ceiling spaces.

You should choose a natural gas garage heater with a larger BTU capacity. By comparing the heater’s BTU rating and wattage, you can determine the heater’s energy efficiency.

8. Mounting

It is possible to mount heaters on walls and ceilings in both portable and fixed forms. A certified HVAC technician hardwires a natural gas garage heater to vents and gas lines in uninsulated garages.

Mounted:  Since they are hardwired into an existing connection, they are the best space heaters for large, uninsulated garages. Professional installation is expensive, which is one of their downsides. These fans draw cold air from the outside or disperse warm air down by mounting them on walls and ceilings. Basements are commonly equipped with baseboard models. Installation is easy and they are quiet.

Compact design: Compact, lightweight, and often with legs or wheels to ease installation and relocation, freestanding units can also be called standalone or freestanding units. There are some cord storage units onboard, and some are plugged into electrical outlets. Place them on the floor, table, or nightstand for focused garage heating. They are ideal for small spaces

9. Dimensions

Uninsulated garages require space heaters that can be conveniently mounted or moved without taking up much space. It should be mounted on a wall or ceiling, leaving enough space for any ventilation hoses and sufficient clearance from the wall.

Portable natural gas garage heaters for uninsulated garages should be equipped with a handle or wheels to facilitate easy transportation. The Lasko 5160 Ceramic Tower Heater is an example of a standalone model with a space-saving cylindrical shape.

You need to consider your space and mounting type when determining the appropriate size. Those heaters that process large volumes of air generally have larger motors and fans, so they will be larger in size.

10. Warranty

This Lasko 5160 Ceramic Tower Heater comes with a 3-year limited warranty. With propane or natural gas garage heaters that aren’t insulated, a one-year limited warranty is usually offered.

Additionally, different brands offer different warranty periods for different components, like a one-year heater warranty and a three-year motor warranty. You could lose your warranty if you use the wrong applications and attachments.

Some examples include converting propane models to natural gas without first confirming compatibility, or using garage heaters in bathrooms and damp environments.

Best Heater For Uninsulated Garage FAQs

How can I heat my garage without insulation?

The garage can be heated without insulation using a few methods.

1. Wood stove installation.
2. A tube heater should be used overhead.
3. Propane heaters are used.

Despite their effectiveness, these methods are expensive.

Which heater will be the safest for a garage?

It is important to choose the safest heater, as there are two options. Fuel-powered heaters are more energy-efficient and provide better heat if there is enough ventilation in the room.

You can also use an electric heater or an infrared heater if there aren’t enough ventilation options. Although electric heaters can heat an uninsulated area, they are not as powerful as gas heaters. In addition, your bill will be enormously increased.

Which type of heater is best for a garage?

When it comes to providing power with a low carbon footprint, garage heaters are the best choice.

Where a heater should be placed in the garage?

If your garage has a cold corner facing the center, you should install a garage heater there.

To heat an uninsulated garage how many BTU’s does it take?

Depending on the size of your garage, you might need 45000 BTUs for a two-car garage.

How long can a ceramic heater run before needed to shut off to prevent overheating?

The ceramic garage heaters we reviewed and other electric heaters we have tested are equipped with an integrated overheat sensor that switches the unit off automatically when the temperature exceeds a safe level. Cool surfaces are maintained by ceramic heaters.

Which model can be left running at all times?

Providing that there is a constant power source, any model can be left running all the time. To prevent a fire hazard, it is important not to leave heaters unattended for long periods of time.

An uninsulated garage is best served by space heaters with built-in thermostats that will only activate when a heat fluctuation occurs so the unit will remain on target. A programmable timer can also be set to operate for a specific period of time.

What are the basic safety tips with these heaters?

Heaters should never be left unattended for long periods of time. Airflow obstruction and overheating can be avoided by leaving sufficient clearance around the unit. Check the compatibility of the power source, attachments, and accessories.

If your garage is uninsulated and damp, you should not install a natural gas garage heater. Install a fixed heater by a certified technician to avoid guesswork.

What temperature should I keep in my garage in the winter?

Your preference will determine what you choose. It is generally recommended that you keep your garage between 10 and 20 degrees when the outside temperature is -40 degrees. The temperature can still be adjusted according to your preference.

Is a heated garage bad for a car?

Cars do not suffer from a heated garage. As well as keeping your car warm, it is better for it. When your car is covered in snow or salt, it may rust slowly if you keep it in a garage every night

What type of noise can I expect from the electrical heater?

You may hear some noises if your heater circulates air using motors and fans. A space heater that runs on electricity will typically make some noise. Nowadays, some devices can be operated with a low level of noise due to the advancements of modern technology.

Final Words

From the 10 best heaters, it can be difficult for you to choose the best heater for uninsulated garages. Therefore, I would like to pick you.

If you have no price concerns, you can pick the Martin Direct Vent Propane Wall Furnace to warm up a 538-square-foot area if you have no ventilation issues. Dr. Heater DR966 240-volt Hardwired is a great choice for small areas without ventilation. while my third choice is for those who can’t afford high price products they can choose Lasko 5160 Ceramic Tower Heater.

All the products above are good quality products and highly rated on amazon. Somehow, it may become difficult in making the decision about which one to choose. These three recommended products help you in choosing easily. I hope these important factors and product detail help you in figure out the right product according to your need.


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