Top 8 Best Ventless Gas Heater Review

Best Natural Gas Heaters Review

Best Ventless Gas Heater Review // Natural Gas Heater

If you’re looking for a reliable source of heat in event of a power outage, a ventless heater is an ideal solution.

Below is my list of the best ventless heaters online.

#1.) Dyna-Glo Propane Gas Wall Heater
#2.) Mr. Heater Natural Gas Ventless Heater
#3.) Blue Flame Gas Ventless Heater
#4.) Dyna-Glo Natural Gas Ventless Wall Heater
#5.) Mr. Heater Radiant Natural Gas Heater
#6.) Mr. Heater Gas Garage Heater
#7.) Mr. Heater 20K BTU Natural Gas Heater
#8.) Coming soon!

** FYI  ventless wall heater links go to Amazon (which typically has the best prices)

 Top #1 Pick: Dyna-Glo Propane Ventless Wall Heater

Propane Ventless Gas Heater

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I recommend Dyna-Glo Propane Gas Heater for people looking to heat rooms up to 1,000 sq. ft. — This could include anything from a garage, cabin, or just a room in your home.

Best thing about Dyna-Glo’s propane wall heaters is that they don’t run on electricity. (You can rely on them to keep you warm during times of emergency if the power goes out.)

 ⭐⭐ Best Ventless Gas Heater for Detecting Harmful Gases ⭐⭐

Heater works on a liquid propane system making it very cost effective. It also comes w/ a remote control allowing you to adjust the temp to your liking.

One of the key safety features is the new oxygen depletion sensor — This ensures that if there’s hazardous gases in the air (other than oxygen) you’ll be notified.

FYI: It’s a great feature that helps to prevent carbon monoxide or other types of gas leaks (i.e. coming from your stove or fireplace)

Highlights

  • Power: 30,000 BTU
  • Room size: 1,000 square ft.
  • Weight: 25 pounds
  • Best ventless gas heater for detecting harmful gases
  • Liquid propane operation
    • Available as natural gas wall heater too
  • Temperature control available
  • Oxygen depletion sensor

Potential Flaws

  • Makes subtle noise when cooling down

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#2.) Mr. Heater Natural Gas Ventless Heater

Mr. Heater Natural Gas Heater Review

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Mr. Heater model works on natural gas and heats spaces of 4,500 square feet. (one of the larger heaters on my list)

It’s fairly similar to the Dyna-Glo Natural Gas Heater in size and power – 30,000 BTU.

To allow for convection heat, they have included a blue flame burner. In addition to this, I liked how they also implemented a few safety functions: low oxygen + tip over auto-shutoff.

⭐⭐ Best Ventless Gas Heater for Healthy Oxygen Levels ⭐⭐

Installation is easy — Mr. Heater provides you with the hardware you need to mount it to a wall. It also comes with legs if you’d like to use it as a portable heater around the house.

** Also read our Top 10 Infrared Space Heaters

Highlights

  • Power: 30,000 BTU
  • Room size: 4,500 square ft.
  • Weight: 26.7 pounds
  • CSA Certified
  • Electronic ignition
  • Includes mounts for wall installation
  • Includes legs for upright ventless heater usage
  • Safety feature = auto shutoff
  • Best ventless gas heater for healthy oxygen levels

Potential Flaws

  • Flame can be prone to flickering

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#3.) Blue Flame Natural Gas Ventless Heater

Blue Flame Natural Gas Ventless Heater

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Blue-flame 30,000 BTU ventless heater by Dyna-Glo can warm up a room of up to 1,000 square feet by turning heat into warm air.

I liked how they provide a control knob which allows you to adjust the heat levels: low, medium, and high

⭐⭐ Best Ventless Gas Heater for Power Outages ⭐⭐

Requiring zero energy, you’ll be able to rely on this heater if the electricity has gone out. If you live in an area prone to storms and power outages the electricity-free system will be a nice help.

Highlights

  • Power: 30,000 BTU
  • Room size: 1,000 square ft.
  • Weight: 28 pounds
  • ** NO electricity ventless heater
  • Best ventless gas heater for emergency eating
  • Control knob available
  • Blue flame tech

Potential Flaws

  • No auto-shutoff mode available

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#4.) Dyna-Glo Natural Gas Ventless Wall Heater

Blue Flame Ventless Gas Heater

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The Dyna-Glo 30,000 BTU model works comes w/ a natural gas function – It uses blue flame tech to allow convection heat to warm the room.

It works similarly to a central heating system, except that it can be more portable — able to produce a maximum of 30,000 BTU’s of heat which can heat a room of 1,000 square feet.

⭐⭐ Best Ventless Gas Heater for Precise Control Temperature ⭐⭐

I liked how you’re able to control the exact heat that you’d like to keep the room at too. This is a result of the control knobs available which enable you to alter the thermostat to your preference.

Gas heater operates on an electric-free system — you can count on it to produce a source of heat during in event of an outage.

Highlights

  • Power: 30,000 BTU
  • Room size: 1,000 square ft.
  • Weight: 24.8 pounds
  • Best ventless gas heater for precise control over heat
  • Blue flame technology
  • Control knobs
  • Natural gas operation

Potential Flaws

  • Not the most powerful on my list

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#5.) Mr. Heater Radiant Natural Gas Heater

MRHEATER Best Ventless Gas Heater

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Orange-flame, 20,000 BTU ventless gas heater comes with a safety auto-shutoff feature for low oxygen level.

I liked how they’ve included a wall mount in case you’d rather have it take less room. Or you can install using the legs (which you can see in the image) in case you want to keep it portable.

In terms of power it can heat larger rooms of 4,500 square feet. It’s one of the larger ventless heaters on my list.

Highlights

  • Power: 20,000 BTU
  • Room size: 4,500 square ft.
  • Weight: 27 pounds
  • Best ventless gas heater for easy installation
  • Auto-shutoff feature
  • Radiant heat function
  • Thermostat available

Potential Flaws

  • Installation can be tricky

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#6.) Mr. Heater Natural Gas Garage Heater

Mr. Heater Natural Gas Garage Heater

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Blue-flame Mr. Heater has power of 30,000 BTU and can heat rooms up to 750 sq. ft.

Like the other Mr. Heater’s on my list, it features an auto-shutoff safety feature that kicks in if the oxygen level has dipped too low. It’s a fantastic mechanism that keeps you out of harm’s way.

To ensure stable convection heat is able to be produced, they’ve incorporated a blue flame.

⭐⭐ Best Ventless Gas Heater for Smaller Rooms ⭐⭐

I also liked how they included a thermostat. This lets you keep an eye on the temperature. Furthermore, they provide you with everything you need to mount the heater to a wall.

Alternatively, you could stand it up on the legs provided if you wanted to be more mobile with it.

Highlights

  • Power: 30,000 BTU
  • Room size: 750 square ft.
  • Weight: 26.7 pounds
  • Best ventless gas heater for smaller spaces
  • Auto shutoff feature
  • Blue flame tech
  • Thermostat included

Potential Flaws

  • Can produce a smell when in operation

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#7.) Mr. Heater 20k BTU Natural Gas Heater

Mr. Heater 20k BTU Natural Gas Heater

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This ventless gas heater includes a thermostat lets you control the overall room temperature — the top dial (which you can see on the image above) make it easy to adjust.

⭐⭐ Best Ventless Gas Heater for Small Rooms ⭐⭐

Subtle blue-flame tech, it’s one of the smaller heaters on my list, ideal for rooms up to 500 sq. ft.

To ensure safety, it also comes with an auto-shutoff feature.

Highlights

  • Power: 20,000 BTU
  • Room size: 500 square ft.
  • Weight: 28.7 pounds
  • Best ventless gas heater for smaller rooms
  • Thermostat available
  • Auto shutoff feature
  • Quiet operation

Potential Flaws

  • Aluminum material may be too soft for some

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** I’ll be adding #8-10 Best Ventless Gas Heater later this year! Stay tuned!

Conclusion

Now that you know more what the best ventless gas heaters have to offer, you can start to narrow down your search.

Be sure to consider all the main features and potential downsides prior to picking one out. We hope our review helps to make the entire process quick and easy!

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About the Author: Sarah Matheson

Hi I'm Sarah and I help manage much of the content on HelpAdvisors. If you have a product or recommendation, please put it in the comments and I'll be sure to get back to you!

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