5 Best Natural Gas Garage Heaters Reviews: Super Warm Heaters of 2020

The best natural gas garage heaters have huge benefits over other heating options. While they can be a little more expensive than their electric-powered competition, they’re usually much more cost-effective in the long run. Natural gas is a more powerful option and generally can heat up even the coldest space in minutes. The gas burns clean and odorless and is a great option for anyone who has to bare those winter months. Not to mention it’s a great back up heater for power outages.

These gas heaters come with a variety of options – built in thermostat (digital or otherwise), wall/ceiling mounts, vents, duel/multi fuel, etc… Wiring and installing is a breeze and natural gas fuel burns at a high efficiency. This are my picks for the best natural gas garage heater on the market this year. My in-depth reviews will go over all the important and detailed information you should know about these space heaters to help you make an informed decision.

5 Best Natural Gas Garage Heaters

  1. Modine Hot Dawg Multi-Fuel Garage Heater
  2. Mr. Heater Vent-Free Portable Natural Gas Heater
  3. PROCOM Blue Flame Vent Free Wall Heater
  4. Mr. Heater 25,000-BTU Natural-Gas Radiant Heater
  5. Mr. Heater 40,000 BTU Gas Garage Heater

1. Modine Hot Dawg Multi-Fuel Garage Heater

Modine HD45AS0111Natural Gas Hot Dawg Garage Heater 45,000 BTU with 80-Percent Efficiency
  • Quiet operation
  • Certified for residential, commercial and industrial use

The Modine Hot Dawg has a stellar 4.9 out of 5 Amazon rating and an incredible amount of praise throughout the internet. This is the best garage heater overall site wide, and is quite honestly the best residential and commercial-grade heater you can get. With the option of 45,000 or 70,000 BTU, this heater will warm any room no time on even the coldest and draftiest of days.

modine-hot-dawgIt runs quiet, has a low profile and durable design, ventilation tubes in the back, and it’s duel fuel (Electric and Natural Gas). Almost too many positives to list here. I highly recommend you read the full review for a total run-down on just what makes this heater top notch. I also recommend you check the recent price below for the most accurate and up to date price. Taking it in your truck? Be sure to install a truck bed liner to avoid damage.

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2. Mr. Heater Vent-Free Portable Natural Gas Heater

Mr. Heater 30,000 BTU Vent Free Blue Flame Natural Gas Heater MHVFB30NGT
  • 30,000 BTU Natural Gas heater to heat spaces up to 1000 square feet
  • Blue flame burner for even convection heat. Maximum Elevation (Ft)-4500. Fuel Consumption/Burn Rate (Gal/Hr)-...

best natural gas garage heaterI had to put the Mr. Heater Blue Flame Vent-Free heater at the top. This little heater packs a punch – able to heat up to 750 – 1000 sq. ft. (depending on insulation) in no time. It’s also able to be used safely indoors, either wall mounted or stand-alone, thanks to it’s oxygen level sensors which shut it off when needed. With 30,000 BTU and an optional battery powered fan, there’s not many spaces this heater can’t warm.

In the review I’ll crunch some numbers and give you a complete overview of this why and how this quiet residential gas heater works. Top rated on Amazon, you can’t go wrong with this gas space heater whether you’re a hobbyist or a serious professional.

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3. PROCOM Blue Flame Vent Free Wall Heater

PROCOM HEATING MGT30BF 30,000 BTU Dual Fuel Blue Flame Gas Wall Heater
25 Reviews
PROCOM HEATING MGT30BF 30,000 BTU Dual Fuel Blue Flame Gas Wall Heater
  • Blue flame wall heater operates at 30,000 BTU with patented dual fuel technology
  • Can heat an area of up to 1,000 sq. Ft., and works with either Natural Gas or liquid propane

procom vent free natural gas heater

The Procom natural gas space heater is almost identical to the Mr. Heater in the #2 spot, but comes just short. While they share many great features (oxygen sensor, wall mount, battery-powered fan, etc…) the Procom doesn’t come with a few features I’d like to see. That, and the user rating is not quite as good.

I suggest you read into my review for a full run down on what I think this particular heater is missing and which cases I would still recommend it in. I would check the recent price as well as this particular model fluctuates often. Sometimes wall heaters require specialized drill bits for wood and metal (alongside using a cordless power drill for installation). So keep that in mind when choosing a heating unit.


Mr. Heater 25,000-BTU Natural-Gas Radiant Heater

Mr. Heater F272100  MH25LP 22,000-BTU Propane Radiant Heater,Multi
20 Reviews
Mr. Heater F272100 MH25LP 22,000-BTU Propane Radiant Heater,Multi
  • 25,000-BTU propane radiant garage/workshop heater
  • Heats up to 550 square feet--roughly the size of a 2-1/2 car garage

This radiant heater comes fully assembled and can easily be hooked up to an existing natural gas line. To make things even easier it comes with an installation video, so setting up of this radiant infrared Mr. Heater is a breeze.

best infrared garage heaterRadiant heaters are great because they actually heat up the objects rather than the air. There’s no warm up period as well, as soon as you turn this on you’ll start feeling the infrared rays. This ceiling mounted radiant heater heats around 500 square feet (about the size of a two and a half car garage), which is actually quite good for an infrared heater.

I have a few suggestions on installation and go over this natural gas best garage heater in greater detail in my review. It’s a mid-range price (check the current price for accuracy) but it is effective, especially for those planted at a desk.


5. Mr. Heater 40,000 BTU Gas Garage Heater

Mr. Heater F272800 40,000 BTU Natural Gas Garage Heater #MH40NG,Multi
74 Reviews
Mr. Heater F272800 40,000 BTU Natural Gas Garage Heater #MH40NG,Multi
  • Efficient, cost effective infrared heat
  • For use in buildings with 12 to 15 ft ceilings

Through it’s efficient and cost-effective infrared heat, the 40,000 BTU Mr. Heater makes it in at spot five. While it’s actually more powerful than the previous heater in the #4 spot (heats up to 750 square feet through infrared heat), it narrowly missed out simply because it’s too powerful for most peoples garages. While it heats around a 3 car garage worth of space it also requires 12 – 15 foot ceilings for use.

Though if you can manage that this is a serious player in the natural gas garage heater space. It’s quiet, clean, odor free, and best of all it has no moving parts so that drastically reduces possible maintenance you could run into – and it has a good warranty to match. Let’s take a deeper look in my Mr Heater 40,000 BTU review and be sure to check the price for an up to date look.


Which is the Top Natural Gas Garage Heater?

I put together these recommendations of the best natural gas garage heater using these as my main judging factors:

  • Heat Potential & BTU’s
  • Make of the unit, Materials used, and assumed life span
  • Efficiency (gas efficiency, clean burn, odor, etc…)
  • Price
  • Warranty offered and Brand History

While I had to make choices in ordering these from 1 to 5, ultimately they could all be the best natural gas garage heaters. Depending on your garage size almost all of these will suffice, but when it comes to a natural gas garage heater it really depends on whether you have enough ventilation, are willing to add ventilation, or don’t want to have to add ventilation. Then it depends on whether you’d prefer infrared heat or forced air. The only portable natural gas options are numbers 2 and 3 on the list and all choices have wall or ceiling mounting options.

I will still always recommend my #1 choice, the Modine Hot Dawg, as it really is the top choice for anyone serious about heating a garage. Though ultimately I suggest you take a close look at your particular needs and make an informed choice from there. If you want some more help check out some of our buying guides!

The video above is a great overview of the Modine Hot Dawg. The information covered in the video is also applicable to any other natural gas garage heater, so it may help your choice!