Ventless Propane Heater for Garage

6 Best Ventless Propane Heater for Garage 2022

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The best ventless propane heater for the garage are the Dyna-Glo Thermostatic Garage Heater, Mr. Heater Vent-Free Natural Gas Garage Heater, and Rinnai FC824 22,000 BTU Propane Vent Free Space Heater, etc are some of the best ventless propane heaters for garage 2022. 

“Winter is coming” is a catchphrase popularized by the famous HBO show “Game of Thrones.” The harsh winter experienced these past few months has made it quite evident that winter isn’t only coming but has fully come.

However, to experience comfort in the harsh cold, the use of a heater is recommended. A heater is equipment designed to raise the temperature of a particular place and make it warm.

One of the most common types of heaters is the propane heater, popular for its efficiency.

The ventless propane heaters are designed to retain as much heat as possible without wasting any. Propane burns without producing poisonous fumes, and since it is cheaper than the regular fuel sources, they keep the occupants of the warm space toasty without costing them money.

Before purchasing a ventless propane heater for your garage, a look at the best options available will help.

Best Ventless Propane Heater for Garage 2022

Here are the 6 best ventless propane heater for garage:

1. Dyna-Glo GBF30DTDG-4 30,000 BTU Thermostatic Garage Heater

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The Dyna-Glo heater with 30,000 BTU of power is one of the best ventless propane heater for garage because can either be fueled by liquid propane or natural gas. So, there are options for you to choose from depending on your preference.

The heater utilizes the Blue Flame technology to convert heat to warm air within a 1,000 sq. ft radius.

If it gets too hot, there is a thermostat control knob on the propane heater to alter the temperature to suit you.

You will not get frozen with the Dyna-Glo GBF30DTDG-4 garage heater in cases of a power outage because it does not rely on electricity to work.

It works so well that you can use it without a fan, but you could get a fan if you’d so wish.


  • Heats up a 1,000 sq. ft expanse
  • Can use either propane or natural gas
  • It comes with a one-year warranty
  • It can automatically sense when oxygen has been expended
  • It has a wrong fuel shut off system
  • Heating can be controlled by a thermostat


  • The legs holding it are sold separately.

2. Mr. Heater Vent-Free 30,000 BTU Natural Gas Garage Heater

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This is a 30,000 BTU ventless propane heater that is perfect for garages and workshops of all kinds. It has a thermostat that enables temperature control without any fuss.

To ensure safety while prolonging the lifespan of the unit, the heater has a metal heat shield instead of a glass one. That way, there will not be any incidents of injuries caused by broken glass.

The Mr. Heater Vent-Free 30,000 BTU Natural Gas Garage Heater also comes attached with a battery to allow continuous use, and it can be started with the piezoelectric ignition.

You can either mount it on the floor on the wall using the bracket and fasteners included for mounting. To encourage cost-cutting, the heater comes with a blower attached to spread heat.


  • It covers a thousand square feet expanse
  • The heat can be regulated using a thermostat
  • Every hour, it produces 30,000 BTU
  • There is a one year warranty period
  • The parts needed for mounting are included, so your money is saved.
  • The blower is not noisy
  • It heats up fast.


  • For a device as powerful as this, no hose and regulator are provided
  • There is no switch to be used for carrying out a safety tip-over
  • The blower does not work effectively
  • The manufacturers do not offer a refund for unsatisfactory services.
  • It can only heat a limited space

3. Rinnai FC824 22,000 BTU Propane Vent Free Space Heater

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The fact that this 22,000 BTU stainless steel appliance is compact, efficient, and safe, is what makes it the best ventless propane heater for garage. It is propane-powered, and if the heater falls or gets disconnected, there is an automatic cut-off switch that stops the supply of gas.

The heater gets switched off by the Oxygen Depletion Sensor whenever it senses a reduction of oxygen in the space.

When it is set on “LOW”, the heater runs at 8,000 BTU, and when it is on “HIGH”, the heater runs on 22,000 BTU.

There is a thermostat available for the regulation of temperature to a comfortable level, and it comes with a display that aids the visual adjustment of settings.

To save cost, the Rinnai heater has a self-diagnostics feature through which issues can be easily highlighted and fixed without the need to call a handyman.


  • Efficiency
  • It makes safety a priority
  • It is not noisy
  • Produces 22,000 BTU
  • Mounting equipment is provided for


  • It only produces up to 22,000 BTU
  • It is expensive
  • The propane tank is not big enough

4. Dyna-Glo BFSS30LPT-2P 30,000 BTU Liquid Propane Thermostatic Vent Free Heater

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This works in almost a similar manner as a Central Heating System in that it converts heat to warm hair, and with the thermostat control knob, the temperature can be changed to your preference.

Since it is powered by propane, the Dyna Glo BFSS30LPT-2P heater does not need electricity to work.

The 24, 000-30, 000 BTU’s/hr it produces covers s thousand square feet area. You won’t need to waste time and money converting fuel for your use so you can immediately begin using liquid propane to power the heater without stress.


  • It is easy to install
  • It is completely safe to use


  • It does not allow the conversion of fuel
  • It shuts down after prolonged use

5. Mr. Heater F299740 30,000 BTU Propane Garage Heater

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This is a cheaper alternative to the Mr. Heater Vent-Free 30,000 BTU Natural Gas Garage Heater. They both have almost similar functions, so you would not be missing much.

It can be mounted on a wall, and with the accompanying thermostat, the 30,000 BTU can be adjusted to your preference.

It is an electric heater that comes with batteries and as a result of the piezoelectric ignition, starting the heater is as easy as A, B, C.

With this heater, there is an increased probability of saving costs because of the one-year warranty period and the fact that a minimum of 20-gallons of propane can power it for about 14.39hours.

When oxygen reduces, the Oxygen Depletion Sensor shuts the heater down.


  • It covers a thousand square feet expanse
  • There is a thermostat included
  • One-year warranty period
  • To protect the user, there are multiple safety measures included
  • Produces 30,000 BTU of raw power


  • It does not account for a high limit safety shut-off
  • The propane tank is not sold at the same time as the heater

6. Bluegrass Living B28TPIR-BB Propane Vent Free Infrared Gas Space Heater

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This covers grounds of up to 1,400 sq. ft with 28,000 BTU generated every hour. The temperature can be adjusted to whatever suits you using the thermostat.

An Oxygen Depletion Sensor turns the heater off whenever the oxygen level in the room reduces.

It can be mounted on the wall or floor, and the tools required for this are included in the package.

To make sure there is ample circulation of warm air, the heater comes with an inbuilt fan.

Another interesting thing that made this heater the best propane heater or garage is that the heater is well tested at the factory before being rolled out for use.


  • Up to 30,000 BTU is produced
  • It covers a wide expanse of up to 1,400 square feet.
  • It can easily be started using the piezoelectric ignition
  • One year warranty
  • Comes with the equipment you might need for mounting
  • It automatically shuts off when needed


  • It can only be used by propane

Ventless Propane Heater: An Overview

Ventless propane heaters are an efficient, inexpensive source of heat that can be fitted in any part of a house. They have an Oxygen Depletion System (ODS) that shuts the heater down whenever oxygen in the room goes below a certain level, thus ensuring the house’s constant safety.

Being propane-powered, they burn cleanly and cause little pollution. They come with mounting equipment. Since they can be mounted anywhere, their installation will not cost much.

Advantages of Ventless Propane Heater

  • Increased Efficiency: The ventless propane heater does not consume as much energy as it uses a small amount of propane to run for a pretty long time. It does not allow heat to waste.
  • Easier Installation Process: The regular vented heaters require lots of effort, some of which destructive, to install. You would have to drill holes in the wall, which could ruin your home décor. You would also need to pay a specialist for the installation, thus wasting money. The ventless propane heater, however, doesn’t need an elaborate installation process.
  • It is Smarter: It comes with an Oxygen Depletion System, so whenever the ventless heater notices a drop in the oxygen level, it shuts down automatically.
  • Easy Mounting: The ventless propane heater does not require an elaborate process to mount it. All that is needed is the use of the already provided mounting equipment.
  • Provision of Warranty: The best ventless propane heaters have a year warranty period. So, you can conveniently call on the manufacturer to get it repaired for free whenever there is a fault.

Things to Consider When Buying a Ventless Propane Heater

  • Heating Capacity: The higher the BTU of the heater, the better. The function of the equipment is the provision of heat, so it is best to get one that produces lots of heat with a higher BTU
  • Ignition Method: Heaters can be ignited automatically or manually. The most common method is piezoelectric ignition which is easier to operate. Electric ignitions might wear off with time, but this isn’t a problem with manual ignition. So, find what works for you.
  • Style: The heater should look nice, blend with the décor of the room and have a sizeable frame.
  • Safety Measures: The heater must not be a hazard to the occupants of its structure. The surface should be cool to touch so children who come close will not be burnt by it. Some switch off when it begins to overheat, and some others go out when low oxygen is sensed.

How to Install Ventless Propane Heater

  • Consider the Size: If there are heaters in the room already, the amount of heat they produce will determine the size of the heater that will be bought. Bigger heaters produce more heat, and smaller heaters will produce lesser heat.
  • Choose a Safe Mounting Surface: The propane tank should be outside the room for safety reasons, and the heater should be far from you, so the heat circulates as far as possible before reaching you. The heater should be mounted on a flat, steady surface, so it does not fall and get ruined. Also, it should be kept out of the reach of children.
  • Mounting the Heater: Wall-mounted heaters are installed by placing the bracket at the right angle and height before putting the heater in the bracket. Standing heaters are placed at a corner of a back wall where passersby cannot kick them. Once they are plugged in, they are ready for use.

Best Safe Ways to Use Ventless Propane Heater

  • Test the heater and ensure that it meets all the laid down standards before using it.
  • The garage should be well ventilated so that exhaust fumes can be let out.
  • Candles and other naked flames should not be used near the heater, so oxygen is not sucked out.
  • Install an alarm to notify you whenever low oxygen levels are reached, so you do not suffocate
  • Regular maintenance should be carried out so that faults can be detected and fixed before they become a safety risk.


It’s already obvious that propane heaters are safe to be used in garages. However, ventless propane heater for garage are a popular heat source in recent times. As with most appliances, they come with risks and advantages. So, an in-depth look at their functions should be done before making a purchase.