10 Best Heater For Uninsulated garage | Ultimate Buying Guide 2023

In this list of the 10 best heater for uninsulated garages, we’ve put together the products that have the most exciting features including the safety mechanism, the best price, and the most heat-generating garage heaters on the market.

We don’t only consist of the product list, rather it includes their specific features and the pros and cons. The buying guide will ensure you choose the right and top-quality heater that really fits your garage. And you may find the answers to the questions related to this topic in the FAQ section. 

Top 3 Editor Choice Best Heater for Uninsulated Garage

Top 10 Pick – Comparison Table




Comfort Zone 5,000W Ceiling Mount Heater

  • Power Source : Hardwiring

  • Heating Method : Forced Air

  • Warranty : 1 year warranty.

Infrared 4800/5600W Heater

  • Power Source : Manual

  • Heating Method : Radiant, Forced Air

Heater 3000W/6000W Commercial Heater

  • Power Source : Corded Electric

  • Wattage : 6000 watts

  • Heating Method : Forced Air

Dyna-Glo 50,000 BTUs Forced-air Gray Heater

  • Fuel Capacity : 13 Gallons

  • Power Source : Kerosene

  • Heating Method : Forced Air

Fahrenheat FUH Beige Electric Heater

  • Power Source : Corded Electric

  • Item Weight : 24 Pounds

Heater Corporation Convection Heater

  • Heats up to 5,000 sq.ft.

  • For use with Liquid Propane

  • Runs up to 29 hours on a 100 lb tank on low

NewAir Portable Electric Infrared Heater

  • 5600 watt heating capability

  • Heats up 560 sq ft

  • Portable design

Heater F260560 Big Maxx MHU80NG Natural Gas Heater

  • Coverage area – 2000 Sq. Ft

  • Use with natural gas

  • Warranty : 3 year

Heater MH75KTR Black Kerosene Heater

  • Coverage area –1,875 sq. ft.

  • Fuel Capacity : 6 Gallons

  • Power Source : Kerosene

Dyna-Glo WK24BK Black Indoor Kerosene Convection Heater

  • Heats up to 1,000 SQ.FT.


  • Power Source : Kerosene

Top 10 Best Heater for Uninsulated Garage Review

While you have the best options to choose the right one for your comfort, why you are hesitating to quick pick up. However, without further ado, let’s move into the topics deep.

Comfort Zone 5,000W Ceiling Mount Heater

This is Comfort Zone 5,000W Ceiling Mount Heater


  • Color: Silver
  • Power Source: Hardwiring
  • Heating Method: Forced Air
  • Item Dimensions: 17.25 Lx 13.7 Wx 14.5 H inches
  • Item Weight: 16 Pounds
  • Power Range: 5000W

Quick Summary
This silver color garage heater from Comfort Zone has a space-saving design to mount on the ceiling. This hard-wired installation doesn’t take away a lot of your garage space. This multi-purpose heater can also use in compact warehouses, storage rooms, or other places.

A sturdy heavy-gauge steel mechanism is suitable for a low insulated area. The design is compatible with targeted heating with the help of various mounting angles and a fan force. However, the fan might not be too speedy to blow everything away.

The dual knob system lets you adjust the temperature at the just-right point you need and a quick on and off feature. It also features a convenient power control and overheats protection.

The built-in sensor for overheat protection automatically switches off the device when the machine is overheated. Additionally, a power indicator light indicates the power supply when it is in use. In this list of best heater for uninsulated garage this heater is favorite one.

  • Easy installation
  • Quality product and sturdy built
  • Fan-forced mechanism provides heat evenly
  • Heats Fahrenheitthe room pretty quickly to a comfortable temperature
  • A value for money product
  • Bottom panels have screws to put up the thing rather than a hinge
  • Analog thermostat features on low and high power control

See more: How To Seal A Garage Door From The Inside

Infrared 4800/5600W Heater

This is Dr. Infrared 4800,5600W HeaterInfrared 4800,5600W Heater


  • Brand: Dr Infrared Heater
  • Color: Red
  • Power Source: Manual
  • Heating Method: Radiant & infrared with Fan & forced air
  • Item Dimensions: 12 Lx 12 Wx 16 H inches
  • Item Weight: 18 Pounds
  • Power Range: 4800/5600W

Quick Summary
The Dr. Infrared Heater is a portable heater to heat up the garage and can be moved anywhere when required with the built-in carry system. The finger-proof intake and discharge grills ensure additional safety. The heater maintains the temperature you set

It can heat up to 95 degrees Fahrenheit, which is a quite comfortable temperature. It can supply from 4200W to 5600W power when connected. Also, at the full rate- It can produce 18500 BTU which should be sufficient to warm up a 1-car garage or construction sites, basement, and small storage space.

Fan spinning can switch two different modes- automatic or on-demand your requirements. It can heat up the room evenly without leaving hot spots or cold spots. The included power plug requires a special power receptacle for the power supply.

  • Durable
  • Easy portability with built-in handle
  • The fan spreads the heat evenly to every nook and corner of the room
  • Energy efficient
  • Easy to use
  • Analog thermostat only indicating two points- high and low

Heater 3000W/6000W Commercial Heater

This is Dr. Heater 3000W,6000W Commercial Heater


  • Brand: Dr Infrared Heater
  • Color: Gray
  • Power Source: Electric
  • Heating Method: Forced Air
  • Item Dimensions: 14.5 Lx 13 Wx 14.5 H inches
  • Power Range: 3000-6000W
  • Item Weight: 27 pounds

Quick Summary
This hard-wired garage heater has 5 louvers to supply sufficient hot airflow with the help of an 8” super fast fan with the least turbulence and noise.

The heater has a convenient setting to be mounted on the wall or ceiling with the included brackets. So, this garage heater is suitable for anyone who wants a convenient setting feature for mounting it in a suitable place.

However, the power cord isn’t included with the machine. It has LOW and HIGH settings to adjust the temperature and a luminant to indicate the power supply. You can turn it on and off with both the switch and the knob.

The heater produces about 20500 BTUs and requires a 25 amp. On the highest settings, the unit produces 6000 watts and on the lowest measure, it produces 3000 watts.

  • Works well to heat up the garage even under 0° temperature.
  • Convenient wall or ceiling mounting option with provided brackets
  • A value for money product
  • Provides comfortable heating
  • Sturdy material
  • Inconsistent thermostat
  • Doesn’t include a power plug and wiring

Dyna-Glo 50,000 BTUs Forced-air Gray Heater

This is Dyna-Glo 50,000 BTUs Forced-air Gray Heater


  • Brand: Dyna-Glo
  • Color: Grey/Black
  • Power Source: Kerosene
  • Heating Method: Forced Air
  • Item Dimensions: 11.69 Lx 32.01 Wx 16.69 H inches
  • Item Weight: 26.9 pounds

Quick Summary
This heater from Dyna Glo can heat up to 1200 square feet, producing up to 50000 BTUs. This forced-air heater generates heat and the runtime fuel gauge always shows the amount of time before the machine needs refueling. The pressure gauge shows PSI (pounds per square inch) on the monitor to give an optimal output.

It has a rugged construction and includes a handle for lift carrying. The heater is run by fuel and has a capacity of 5 gallons at a time. It can operate for up to 14 heating hours. However, it needs to be operated in a well-ventilated area.

This heater features an easy-removing combustion chamber and motor, only requiring one-third of the time than other heaters. Hence, saves a lot of maintenance time. It has multiple fueling options- 1k kerosene, number 1 diesel, number 2 diesel, number 1 fuel oil, number 2 fuel oil, Jetta, or JP8.

This heater also features an overheating shut-off switch and a flameout sensor to reduce the chance of an accident. It is not only suitable for residential purposes but also goes well with commercial and industrial applications as well.

  • Robust construction
    • Additional safety features for safe use
    • It requires only scheduled maintenance
    • Ergonomic handle for easy carry and repositioning
    • A bit noisy when in operation

    Fahrenheat FUH Beige Electric Heater

    This is Fahrenheat FUH Beige Electric Heater


    • Manufacturer: Fahrenheit
    • Item Weight: 24 pounds
    • Product Dimensions: 12.5 Lx 12.4 Wx 14 H inches
    • Batteries Required: NO

    Quick Brief
    This heavy-duty heater from Fahrenheat has a sturdy construction. This can provide heat up to 135 degrees Fahrenheit starting from 45 degrees. The convenient design aims to heat exactly towards the pointed object. Hence, you can set it in an adjustable way. It can produce 5000 wattages of power. It is compatible with a 208 or 240 volts power outlet.

    This down-flow unit heater comes with adjustable louvers and a ceiling mount bracket so that you can mount it in your suitable direction. The built-in thermostat provides just the amount of heat output you need. It spreads out the warm air throughout the room for even distribution and eliminates cold drafts.

    The heater provides constant heat throughout the room. It can supply sufficient hot airflow with the help of the adjusted fan. The product is suitable for your garage, construction sites, and even factories and warehouses. And it comes with a safety limit including a high-level automatic cutout and reactivation to prevent overheating problems.

    • Convenient mounting option
    • Overheating prevention
    • Easy remote control operation
    • Ideal heater for open or uninsulated areas
    • Compatible with a drafty and uninsulated space to warm up in winter with its powerful output
    • High price
    • Even though it provides constant heat, it may require more time to heat the room

    Heater Corporation Convection Heater

    This is mr. Heater Corporation Convection Heater


    • Brand: Enerco Group Inc
    • Color: Silver
    • Power Source: Corded-electric
    • Heating Method: Convection
    • Item Dimensions: 19.25 Lx 16.5 Wx 18.5 H inches
    • Accessories: 10 feet hose and a regulator
    • Constant running time: 29 hours on low heat

    Quick Recap
    This excellent-looking garage heater from Enerco Group Inc heats up with the convection method. It can produce from 75,000 to 200,000 BTU per hour using propane gas on a 100 lb propane tank. The heating area is 5000 sq feet and can supply power up to 29 hours constantly.

    You don’t need to worry about the installation as this heater comes fully installed. Additionally, it includes a P.O.L tank, a 10 ft. hose, and a regulator to regulate the temperature. It doesn’t need to connect with any electric socket as it runs with the propane.

    The standing pilot feature has brought you the perfect solution for heating the room from the start. The continuous burning flame doesn’t go off and keeps the room heated for a long time. The plug and power method only requires hooking up the propane hose and regulator with the fuel tank.

    The heater includes an instant locking chamber for easy assembly. Also, it has a Piezo push-button igniter that never runs out. It has been facilitated with a thermoelectric safety valve that automatically turns off the flame if the fire ever goes out.

    • It comes fully installed and is ready to use
    • The standing pilot features a safe power supply and prevents fire incidents
    • Easy plug and play function
    • Only heats a particular space and doesn’t spread the heat.

    NewAir Portable Electric Infrared Heater

    This is NewAir Portable Electric Infrared Heater


    • Brand: NewAir
    • Color: Black
    • Power Source: Corded Electric
    • Item Dimensions: 11 Lx 10.5 Wx 14 H inches
    • Item Weight: 16.6 Pounds
    • Power Range: 5600W

    Quick Rundown
    This incredible heater from New Air can produce up to 19107 BTU and heat up a 560 sq Ft room evenly with the help of a powerful fan. Therefore, this heater can go well with a light industrial environment, garages, workshops, and construction sites.

    The heater includes a 6-foot cord and a built-in handle. So, you can keep it anywhere you need by the handle. This easy setup has made this heated a suitable product for anyone who is looking for an easy transporting room heater to heat up any particular space.

    The fast heating process is increased when you turn on the fan and gear up the heat by turning the knob high. The single-pole thermostat of the heater maintains the temperature that you set for the garage.

    The motor is protected by a sophisticated thermal cut-off system that ensures the safety ness of the machine from any fire incident. The sturdy stainless steel build is durable for a long time. And the

    • Easy portability
    • Maintains the temperature if you once set it
    • Durable structure
    • Does not fit a standard plug hence you may need an additional system to plug it in

    Heater F260560 Big Maxx MHU80NG Natural Gas Heater

    This is Heater F260560 Big Maxx Natural Gas Heater


    • Brand: Mr. Heater
    • Color: Tan
    • Power Source: Gas Powered
    • Heating Method: Forced Air
    • Item Dimensions: 30.31 Lx 27.55 Wx 22.04 H inches
    • Item Weight: 86.5 pounds

    Quick Digest
    This gas heater from Mr.Heater includes two angle brackets for easy mounting and a liquid propane conversion kit. However, the thermostat, hose, and regulator not included in the package. The kit turns natural gas into liquid propane.

    This heater is larger and can cover a greater area than most of the heaters in this list, about 2000 sq. ft. it can produce up to 80,000 BTUs and a voltage requirement of 120 volts.

    The heater has two mounting options- category one vertical, and category three horizontal. So, you can put it in a vertical or horizontal position depending on your requirement. Even the heater can install in a relatively low ceiling, it needs a minimum 8 feet clearance under its base from the floor.

    The heat features spark ignition which automatically turns off the heater if it notices any smoke. The heater functions quietly. The built-in fan has a high velocity and pulls in cool air and turns that into warm air and force-spreads it all over the room.

    • A high-velocity fan spreads warm air throughout the room
    • It has the capacity to cover a bigger area
    • The conversion kit successfully turns the natural gas into liquid propane
    • Easy installation with the included brackets
    • The thermostat not included with the package
    • Too much pricey

    Heater MH75KTR Black Kerosene Heater

    This is Heater MH75KTR Black Kerosene Heater


    • Brand: Mr. Heater
    • Color: Black
    • Power Source: Kerosene
    • Heating Method: Forced Air
    • Item Dimensions: 32.68 Lx 17.32 Wx 14.02 H inches
    • Item Weight: Pounds

    Quick Summary
    The MH75KTR from Mr. Heater has incredible heating power to warm up your room. This item in our list has a fixed output of 75,000 BTU and can run 11 straight hours when the tank is full.

    The high limit safety switches automatically shut off when the photo CAD cells notice any unsafe situation. It is suitable for garages, workshops, etc. it can heat about 1875 sq ft. space.

    It uses forced air to warm the room up by pulling cool air and turning it into a warm breeze. The machine provides instant heat and efficiently does its job. The rugged build heater is very durable because of its steel construction.

    The package includes a thermostat that has six different temperature levels. A 6-gallon fuel tank supplies necessary fuel for the heater for up to a long time. A fuel gauge that shows when you need to refuel the heater. The on/ off power switch helps to easy on/off switch. An ergonomic handle is attached to carry it away.

    The heater has an easy installation system that only requires 5 minutes. It can be fueled with JP8, 1 and 2 fuel oil, 1 and 2 filtered diesel, and kerosene, and provides the best starting service in cold weather situations.

    • Safety features ensure safe operation, so no worries about any accident
    • Pointed heating warms up space pretty fast and efficiently
    • Multiple fueling options lets you choose your one
    • Pricey product

    Dyna-Glo WK24BK Black Indoor Kerosene Convection Heater

    This is Dyna-Glo WK24BK Black Indoor Kerosene Convection Heater


    • Brand: Dyna-Glo
    • Color: Black
    • Power Source: Kerosene
    • Heating Method: Convection
    • Item Dimensions: 17.52 Lx 17.52 Wx 26.97 H inches

    Quick Outline
    This product from Dyna-Glo can supply up to 23,800 BTU per hour and heat a 1000 sq ft. or 93 sq meter uninsulated area. It runs only on 1k kerosene, but the kerosene burns with 99.9% efficiency. It can supply 8-12 hour support with the1.9 gallon fuel tank.

    This garage heater runs on kerosene and doesn’t need any electricity to produce heat. This Dyna-Glo can easily use for daily purposes. For example- the basement, cabin and garage, and workshops that required constant heating but no forced air supply.

    This heater is very convenient to use with the automatic ignition and one-touch shut-off. Moreover, the fuel gauge indicates the run time, so that you can easily refuel the machine. Also, it is energy efficient as well as economical. You can use it for a targeted area, hence can reduce the heating bill.

    • Saves a lot on your heating bill
    • Excellent product- does its job pretty well
    • Sturdy construction
    • High price
    • Single fueling option; only suits a particular type of kerosene

    LATEST ARTICLE: Best Grill Mat For Concrete Patio

    This is Uninsulated Garage heater buying guide and review

    Buying Guides For The Best Heater For Uninsulated Garage

    Few things that you must consider before buying the best heater for an uninsulated garage. The factors will determine whether a particular heater is best for your requirement.

    Heating Method

    There are a few ways to heat up the uninsulated room using a heater. Using natural gas or propane is cost-effective when compared to electricity. However, it needs permission from the local authority and needs to be installed by a licensed individual. The heating methods may include-

    • Radiant Heater: The radiant heaters use infrared rays to heat the room. The rays reflect on the polished reflectors that diversify the heat outwards for spot heating. It can be compared to a campfire. The radiant heaters do not blow air like an air-forced heater. There can be various fueling sources for this heating method- electricity, propane, or natural gas.

    This heating method is especially suitable for the DIYers or woodworkers who like a pointed heating method in a particular direction. The benefit of this type of heating method is that it doesn’t blow up any dust and doesn’t ruin any ongoing projects. You can find mounting or portable radiant heaters in different sizes and prices.

    • Forced-Air Heaters: The forced-air heaters use the fan power to distribute the heat evenly through the room or garage when in operation. This heater can also be found in many sizes and prices and can be powered through various methods, like- electricity, propane, kerosene, or natural gas. When it is powered with natural gas, the connection is tied with the house’s gas line.

    When some fan-forced heaters need ventilation- as they produce fumes and water vapors, most of them whip up the dust and debris and can ruin any ongoing projects by blowing dust particles into it. These types of heaters best fit in a garage or storehouse where there is no possibility of working with wood or other DIYs.

    • Convection Heaters: These types of heaters use the convection heating process to heat the area by heating the elements in an enclosed flame without using any fan power. However, this heater does not provide intense heating like a radiant or forced-air heater, though it can heat the room pretty efficiently, even though it’ll take a little while to warm up. Convection heaters can be found in many shapes and prices, and generally have either baseboard mounting or portable options.


    In general, industrial heaters have a power measurement in BTU (British Thermal Unit) or Watt. It is suggested that you should bring in a heater with a bit more power than you require, especially if there’s a lack of insulation. As there is no central heating source the room becomes colder in the winter on the opposite side of the heater.

    Safety Features

    When buying a garage heater, you should also consider the safety measures along with the electrical features.

    • Overheat Protection: This feature works as an automated system and automatically turns off the power button when the temperature reaches a certain limit.
    • Cool-touch Exterior: The exterior of the heater is made of either plastic or fiberglass, which are poor conductors of heat, and remain cool even when the heat is produced. These exteriors are most found in portable or wall-mounted heaters.

    Hardwired or Plugged-in

    Hardwired installation is permanent on a wall or ceiling, and saves valuable space in a compact room. But there should be the main power source to connect the hardwired heater.

    However, most heaters are plug-in versions and require to be plugged in and have a quicker setting solution than a hardwired heater. These are especially suitable for people who do not use them on a regular basis.

    So, you must need to consider the mentioned factors when you’re looking for the best heater for uninsulated garages.


    • How can I heat my garage without insulation?

    There are a few methods to heat your garage without insulation.

    • Installing a wood stove.
    • Using a propane heater.
    • Use an overhead tube heater.

    Though these methods are effective, they are costly.

    • Which type of heater is best for a garage?

    Fuel-efficient propane heaters are best for the garage to supply power with less carbon footprint.

    • Which heater will be the safest for a garage?

    When it comes to choosing the safest heater, you have two options. If you have enough ventilation in the room, you can choose a fuel-powered heater for energy efficiency and better heating.

    And if you don’t have enough ventilation options, you can either use an infrared heater or an electric heater. However, the electric heaters are not that powerful in terms of heating an uninsulated area. Additionally, they’ll add an enormous amount to your bill.

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

    It depends on the garage size, but for a 2-car garage, you may require 45000 BTU or British Thermal Unit.

    • Where a heater should be placed in the garage?

    The best place for garage heaters to be placed is in the coldest corner facing towards the center of the garage.

    Final Verdict: Which Is The Best Heater For Uninsulated Garages?

    Finding the best heater for uninsulated garages from the 10 best heaters can be a hectic journey for you. So, let me pick you then. The best product for big unventilated space you can pick is the Mr. Heater F260560 Big Maxx MHU80NG if you have no price issues as it can warm up a 2000 sq ft area. For a small unventilated area- Dr. Heater 3000W/6000W Commercial Heater can be a great pick for the price. The best product in terms of price is Mr. Heater Corporation Convection Heater. This item can heat up a 5000 sq ft. area.

    Check Our Latest Article:
    Best Coffee Grinder For Chemex
    Best Wet Grinder In USA Reviews
    Best Grill Mat For Concrete Patio


    Leave a Comment