6 Best Indoor Natural Gas Space Heaters [Reviewed] (2024)

Not all houses have elaborate fireplaces and central heating systems, making winter nights a bit more challenging to handle.

Of course, no one likes to be in a poorly heated home as it puts a halt to carrying on with the day’s activities. Moreover, the constant chill in the air can dampen anyone’s mood in a second. This is why it is essential to have a heater that can effectively keep the temperature of the house under control.

Now, the question is – Which natural gas indoor heater is ideal for your home? With the number of options in the market, it can be a challenging decision. Some natural gas heaters might be too big, while others might be too small for your home. For your convenience, we are here to review the best indoor natural gas space heaters available in the market.

So, without further ado, let’s get right into it.

Best Indoor Natural Gas Space Heaters

To help you make an informed decision, we have compiled a list of the six best indoor natural gas space heaters available on the market today. So without further ado, here’s the list of the 6 best indoor natural gas space heaters.

1. Dyna-Glo Natural Gas Heater BF20NMDG – Best for Large Spaces

The best part about winter is cozily sitting by the window and watching the snowfall while sipping on hot chocolate. But, this plan will fail without a proper heater in the house. This is why you need to look at the Dyna-Glo Natural Gas Heater.

Another highly recommended product that works with blue flame technology is this one by Dyna-Glo. This natural gas heater is worth considering if you wish to heat large spaces in little time. What’s even better is that the blue flame technology is 99% efficient and will effortlessly heat and circulate the air in the room.

The Dyna-Glo heater has a heat output of about 10,000-20,000 BTUs which is more than adequate for a 750-square-foot space. Additionally, it has a control knob that can be used to change the temperature. The lowest setting is 10,000 BTU, followed by 15,000 BTU, and finally, the highest is 20,000 BTU.

You will appreciate that this heater requires no electricity to function. This means that it can be used as a primary or secondary heating unit as it is just as effective as an electrical heater.

There is hardly anything to fault with this unit. It’s efficient, effective, and affordable. However, it is a bit of a downside that the legs for floor installation are not a part of the package and need to be purchased separately. In addition, some users find the three pre-set heat modes a bit restrictive.

Heating Capacity: 30,000 BTU | Energy Efficiency: 99.90% | Safety Features: Oxygen depletion sensor, tip-over switch, flame-out sensor | Type: Vent-free

2. Mr. Heater Natural Gas Heater MHVFB30NGT – Best for Flexibility

Winter mornings can be made even cozier now, thanks to the Mr. Heater Natural Gas Heater. This battery-operated unit is a handy product to have in a large house. Let’s take a look at some features in detail.

If you are looking for a high-quality and efficient heater, then this one by Mr. Heater is worth considering. The Mr. Heater Natural Gas Heater is a CSA-certified product that can effectively warm any space up. Furthermore, it has an output of 30,000 BTU, which is enough for a 1000-square-foot space.

Interestingly, this one by Mr. Heater is a convection heater, a.k.a. a blue flame heater. The blue flame indicates maximum heating but does make the room too hot. Unlike infrared heaters, it only heats the air in the room instead of objects. Also, the unit has an automatic low oxygen cut-off feature in case there is too much gas in the air.

Additionally, the unit is quite flexible in terms of installation. It can be set on the ground or mounted on the wall, and the package contains all the necessary hardware.

Overall, the heater is an excellent primary unit and even a secondary one if you do not want to use the main fireplace. The only issue is that it is the body of the heater tends to heat up a little, so you have to be careful around it. Also, this unit is not ideal for anyone living 4,500 feet above sea level.

Heating Capacity: 20,000 BTU | Energy Efficiency: 99.90% | Safety Features: Oxygen depletion sensor, tip-over switch, flame-out sensor | Type: Vent-free

3. Mr. Heater Radiant Natural Gas Heater – Best for Small Spaces

Next on this list is yet another Mr. Heater Natural Gas Heater. This one is slightly smaller than the one previously reviewed and is ideal for smaller spaces and personal use. Now, moving on to some more details about this unit.

The thing about heaters is that bigger is not always better. If you live in a small space, big heaters might be more of a nuisance than a blessing. This is why there is a need for smaller heaters to adequately and not overly heat smaller spaces. Mr. Heater’s natural gas heater (MHVFRD10NG) is perfect in this regard.

The heater is relatively compact and only weighs about 17 lbs. Furthermore, it has a heat output of 10,000 BTU (max) which is more than enough for spaces up to 250 square feet. Hence, if you are looking for a heater for a small office or a studio, this one’s for you.

Additionally, it has a “low oxygen” cut-off button that will automatically go off if the oxygen level in the room is low. Also, it is CSA-certified, making it safe to use in any space.

One of the main issues with this unit is that it has no proper fan to circulate the hot air in the room. This can lead to the uni creating a few pockets of hot air. We suggest using an extra fan to push the air around the room.

Heating Capacity: 10,000 BTU | Energy Efficiency: 99.90% | Safety Features: Oxygen depletion sensor, tip-over switch, flame-out sensor | Type: Vent-free

4. World Marketing of America Wall Heater KWN521

Another product that is doing the rounds in the market these days is this heater by World Marketing of America. This one is a simple five-plaque natural gas heater made to make winter nights a bit more bearable. It is ideal for large rooms and features plenty of impressive features.

If you are looking for a simple heater that does what it says, check out this one by World Marketing of America. This 25-lb unit is a vent-free infrared burner with a heat output of 30,000 BTU. Additionally, this heater is more than capable of thoroughly heating any room up to 1000 square feet.

This heater is a bit different from blue flame heaters. It has five plaques which means a maximum of five plates can emit heat. Unlike a convection heater, this kind of infrared feature heats the objects in the room and not the air. Furthermore, the room heats up quite quickly and does not even need electricity to run.

A few impressive features are the built-in sensors for low oxygen and the adjustable heat settings. Both these features allow the users to make proper use of the heater without worrying about too much. Plus, the unit has to be controlled manually so you can be in proper control.

One major downside is that the warm air remains in place and does not get distributed in the room. And, while the room heats up quite fast, it also cools down pretty quickly. You will have to keep it on constantly for consistent heating.

Heating Capacity: 20,000 BTU | Energy Efficiency: 99% | Safety Features: Oxygen depletion sensor, automatic shut-off | Type: Wall-mounted

5. Rinnai EX38CTN Natural Gas Heater

Rinnai heaters have been manufactured to provide comfortable and convenient heating solutions for a long time, and this natural gas heater is no different. The Rinnai EX38CTN heater is a natural gas heater, ideal for large spaces. You can also get this in a propane-based variant.

The Rinnai heater is a vent wall heater that runs only on natural gas. You will appreciate that the heater has a heat output capacity that ranges from 13,200-38,400 BTU, making it ideal for large spaces. Additionally, it has a wall thermostat for easy temperature control. This thermostat can be programmed in Celsius as well as Fahrenheit.

There are plenty of features that the heater has, which make it stand out in the sea of heaters. One such feature is the convection fan the unit has, which allows the hot air to be directed and circulated appropriately. Moreover, this unit can be used in high altitudes up to 10,000 feet which is a lot more than the usual 4500 feet.

Additionally, this heater has a user-friendly design and provides even heating in any space, which is why it is a popular choice. Furthermore, it is backed by a residential warranty.

The sensor seems to cause some inconvenience. Users have mentioned that the older units would stay on continuously. However, this one has a sensor that causes it to turn on and off once the space becomes too hot. This puts the unit at risk of malfunctioning, which is not ideal. But don’t worry, it does not affect the gas bill.

Heating Capacity: 38,400 BTU | Energy Efficiency: 83% | Safety Features: Flame failure device, overheating protection, child lock | Type: Vented

6. Ashley Hearth DVAG11N Natural Gas Heater

If you are looking for an old-school heater with the power of a new-age one, you should check this out. This Ashley Hearth heater is ideal for people who want a retro, classic heater for their small apartments or any living space. Plus, it is quite easy to install, making it an ideal first-time buy.

The Ashley Hearth natural gas heater is a simple, beige-colored indoor heater ideal for small to mid-sized spaces. This heater has a heat output of about 11,000 BTU and can effectively heat any space up to 375 square feet. Additionally, it has a sealed combustion system which makes it safe for bedrooms or any residential space.

This heater’s next beneficial feature is the matchless ignition, which makes it effortless and straightforward to start the heater. Moreover, the heater has a built-in regulator with a safety pilot that can stop the gas flow in case of emergencies or accidents. These features make it perfectly safe to use the heater in any residential complex.

Another significant benefit this heater has is that it has burners that do not make noise, making this unit a noiseless heater. Thanks to this feature, not only are they ideal for large spaces but even small mobile or modular homes.

One major downside is that the instruction manual is a bit difficult to understand. This makes the installation a bit tedious but not difficult. Another issue is that the unit has no blower, so the heat does not distribute evenly in the room.

Heating Capacity: 11,000 BTU | Energy Efficiency: 82% | Safety Features: Oxygen depletion sensor, automatic shut-off | Type: Freestanding

Best Indoor Gas Space Heaters Comparison Table

Buying Guide For The Best Gas Space Heater

Now that we are done reviewing certain products let’s move on to something just as important. As we know, there are hundreds of products to choose from. This is why it is crucial to know the important features you must look for when buying anything.

To make things easier, we have put together this short buyer’s guide. Hopefully, this will help you understand what makes a heater stand out from the rest.

1. Heating Technology

The heating technology, i.e., infrared and blue flame, are both effective and efficient. Both these technologies will heat the room, but only one is more lasting than the other.

The heaters with infrared technology will heat the objects near it to increase the room temperature. On the other hand, heaters with blue flame technology will heat the air in the room. So while both are 100% efficient and effective, the latter usually keeps the room warm for longer.

Moreover, blue flame technology is a better option if you are looking to bring down heating bills. It is far better in terms of being economical and eco-friendly.

2. Size

We have touched upon this subject before; size is crucial when it comes to heaters. While extensive and elaborate heaters with plenty of features look good, they will only blend into a large space. In a small space, the heater will end up looking out of place.

The idea is to ensure that the heater is in proportion to the space it is kept in. Not just for aesthetics but also for providing adequate heating instead of leaving the room too hot or too cold.

3. Safety

It goes without saying that having a heater that is safe for the house is an essential feature. Most households have children and pets, which makes this factor all the more important. You have to ensure that the heater has features that make it safe for all kinds of houses.

Every heater should be anti-leak, sturdy, and should be able to stay upright on any surface, at the very least. Additionally, it should have features like a low oxygen cut-off and a heat-resistant surface.

4. Additional Features

There are many other features that a heater could have that make usage easy and more enjoyable. We have reviewed some of the heaters with features like control knobs, thermostats, a sealed combustion unit, and a push-button ignition. These, undoubtedly, make the heater more functional and efficient.

Are indoor natural gas space heaters safe?

Yes, indoor natural gas space heaters are safe when used properly. Most models come with safety features such as oxygen depletion sensors, tip-over switches, and flame-out sensors to ensure safe operation.

What is the heating capacity of indoor natural gas space heaters?

The heating capacity of indoor natural gas space heaters varies depending on the model but typically ranges from 10,000 BTU to 38,400 BTU.

Are indoor natural gas space heaters energy-efficient?

Yes, most indoor natural gas space heaters are energy-efficient, with efficiency ratings ranging from 82% to 99.9%. Be sure to look for models with high-efficiency ratings to save on energy costs.

Do indoor natural gas space heaters require ventilation?

It depends on the type of indoor natural gas space heater. Vent-free models do not require ventilation, while vented models require proper ventilation to ensure safe operation.

Can indoor natural gas space heaters be wall-mounted?

Yes, some indoor natural gas space heaters can be wall-mounted for convenient installation and space-saving purposes.

Are indoor natural gas space heaters easy to install?

Yes, indoor natural gas space heaters are generally easy to install, but following the manufacturer’s instructions carefully is important to ensure safe and proper installation.

Conclusion

On that note, we finally come to the end of this review on the 6 best natural gas space heaters. We hope this has been an informative read and can help you make a quicker decision as you look for the ideal heater.

We would like to point out our favorites as all of this is a lot to read for anyone just looking for product names. Our top recommendation is the Dyna-Glo natural gas heater BF20NMDG, followed by the Mr. Heater Raidant Natural Gas Heater MHVFRD10NG. The reason we picked these is that both offer effective heating with 100% efficiency.

And that’s it, folks. We shall sign off now but stay tuned for many more interesting reviews and guides.

See you next time!

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