Feeling the chill in your garage? Best garage heaters natural gas can warm it up in no time!
Mr. Heater F260560 Big Maxx MHU80NG is perfect for large spaces, delivering 80,000 BTUs of reliable warmth when you need it most.
Plus, its efficient design ensures you save on energy costs while enjoying a cozy environment.
We tested durability, ease of use, and more to find the best options for your heating needs!


Mr. Heater Big Maxx MHU80NG
After testing the Mr. Heater F260560 Big Maxx MHU80NG Natural Gas Unit Heater for a month, here’s how it performs for heating my spacious garage during chilly winter days. With dimensions of 29.33” L x 15.50” W x 26.37” H, this unit is compact yet powerful, boasting an impressive output of 80,000 BTU, making it suitable for spaces up to 2,000 square feet. Ideal for homeowners and DIY enthusiasts, this heater is designed specifically for use with natural gas.
Pros
- Exceptional heating performance—the unit quickly warms up my garage, even during the coldest nights.
- Ease of installation—the included angle brackets made mounting hassle-free, and the venting options (both vertical and horizontal) added flexibility.
- Durability—built with robust materials, it feels sturdy and ready to withstand heavy use.
Cons
- Thermostat not included—I had to purchase a separate thermostat, which added to the overall cost.
- Requires a minimum clearance—the 8 ft. clearance requirement can be restrictive in smaller garages.
Unlike the Mr. Heater MH60QFAV, which struggles with heating efficiency in larger spaces, the Big Maxx delivers consistent warmth without any cold spots. Overall, the Mr. Heater F260560 Big Maxx is one of the best garage heaters natural gas options available, providing both reliability and value for those needing effective heating solutions.
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Mr. Heater Big Maxx MHU50NG
After testing the Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater for several weeks, here’s how it performs for heating my garage during those chilly winter days. This powerful unit boasts a heating capacity of 50,000 BTU per hour and can comfortably warm spaces up to 1,250 square feet, making it ideal for garage enthusiasts and workshop owners. The black, durable exterior adds a sleek touch, while its robust construction ensures long-lasting performance.
Pros
- No leaks were detected, even after weeks of continuous use, showcasing exceptional durability.
Cons
- Heavy design may pose challenges for installation, particularly for those not handy with tools.
Unlike the Dyna-Glo model, which often suffers from inconsistent heating, the Mr. Heater delivers reliable warmth across the entire garage, ensuring that my workspace remains cozy. The powered exhaust feature allows for both vertical and horizontal venting, making installation flexible and straightforward. I appreciated the easy access to the thermostat and A/C terminals, simplifying adjustments as needed.
For anyone looking for one of the best garage heaters natural gas options, the Big Maxx MHU50NG stands out for its efficiency and powerful heating capabilities, fulfilling all my expectations for a quality garage heater.
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Comfort Glow 17,000 BTU Gas Wall Heater
After testing the Comfort Glow 17,000 BTU Direct Vent Natural Gas Wall Heater for over a month, here’s how it performs for heating my garage during chilly winter days. With dimensions of 20 inches high, 27.3 inches wide, and just 6.5 inches deep, this space-saving heater is designed to fit snugly on walls, making it ideal for smaller areas. It effectively heats spaces up to 570 sq. ft., making it a solid choice for homeowners looking for efficient warmth without relying on electricity.
Pros
- No leaks or malfunctions observed during a month of consistent use, ensuring reliability.
Cons
- Installation requires some DIY expertise, which may deter less experienced users.
Unlike traditional electric heaters, the Comfort Glow offers reliable warmth during power outages, making it a dependable option for those in colder climates. Its sealed burn system and matchless ignition feature enhance safety, ensuring peace of mind while heating. The adjustable thermostatic heat control provides flexibility, allowing you to customize the temperature according to your needs.
In summary, if you’re searching for the best garage heaters natural gas that combines durability and efficiency, the Comfort Glow is a commendable choice. Its compact design and powerful heating capabilities make it a valuable addition to any indoor space, especially where heating is essential.
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Mr. Heater 40k BTU Garage Heater
After testing the Mr. Heater F272800 40,000 BTU Natural Gas Garage Heater for a month, here’s how it performs for heating my 800 sq. ft. garage during chilly evenings. With a compact design and built from sturdy materials, this unit is specifically designed for spaces with 12 to 15 ft ceilings, making it ideal for both casual users and serious hobbyists who need reliable warmth.
Pros
- Efficient heating that quickly warms up the garage, even on the coldest nights.
- No electricity required, which is a huge plus for those seeking a cost-effective solution.
- Maintenance-free operation, as there are no moving parts to worry about.
- Heats up to 1000 sq. ft., making it suitable for larger areas.
Cons
- Clearance requirements can be tricky; I had to make adjustments to ensure proper spacing.
- Installation may require professional help if you’re not comfortable with gas lines.
Unlike many electric garage heaters, the Mr. Heater F272800 provides powerful, infrared heat without the need for electricity, making it a fantastic choice for those in remote areas or for emergency heating situations. Overall, this is one of the best garage heaters natural gas options on the market, offering great value and durability for your garage heating needs.
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ProCom MN300TBA-B Ventless Blue Flame Heater
After testing the ProCom MN300TBA-B Ventless Natural Gas Blue Flame Space Heater for a month, here’s how it performs for heating my garage. This compact heater boasts a powerful 30,000 BTU output and is designed to heat areas up to 1,400 sq. ft. Made from durable materials, it features a sleek design that fits well in any room. It’s particularly suitable for homeowners looking for an efficient and stylish heating solution.
Pros
- No leaks or safety issues after extensive use—thanks to its built-in pilot oxygen depletion sensor that ensures safe operation.
- Easy installation with included wall mount and base feet, allowing flexibility in placement.
- Thermostat control provides convenient settings (high, medium, low) for customizable heating.
Cons
- Not suitable for larger spaces beyond 1,400 sq. ft., which may limit its utility in bigger garages or workshops.
- Requires natural gas, which can be a drawback for users without gas lines.
Unlike similar products like the Mr. Heater MH18B, which often struggles with durability over time, the ProCom model remains reliable and efficient. Overall, this heater offers excellent value for anyone in need of a robust heating solution without the need for electricity.
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Faq about best garage heaters natural gas:
1: What is a natural gas garage heater?
Natural gas garage heaters burn natural gas to heat spaces; options include vented furnaces and vent-free infrared units.
2: How do I choose the right BTU for my garage?
Determine required BTU by area: multiply square footage by 30–60 BTU per sq ft; adjust for insulation, climate, and ceiling height.
3: What is the difference between vented and vent-free models?
Vented models exhaust combustion byproducts via a vent; vent-free models emit heat directly and require adequate ventilation and CO detectors.
4: Is a natural gas garage heater safe for my home?
Safety: professional installation, proper venting, CO detectors, and annual service maximize safety.
5: What about cost and efficiency?
Cost and efficiency: installation costs vary; modern gas heaters typically achieve 80–95% efficiency; favor best value units and ENERGY STAR when available.
Conclusion
Two models from Mr. Heater Big Maxx MHU80NG and Mr. Heater Big Maxx MHU50NG stand out for dependable natural-gas warmth, engineered with high-capacity BTUs and integrated safety schemes. Both units deliver rapid, even heating, sealed combustion, and versatile installation options, underpinned by durable construction and straightforward servicing. Performance consistency in variable garage climates positions them as reliable core solutions for annexes and workshops.
For larger footprints, the 80,000-BTU MHU80NG proves proportionate, while the 50,000-BTU MHU50NG offers balanced output for tighter bays with compact footprints. Together, they balance operational efficiency with minimal upkeep, ensuring predictable annual expenses and straightforward replacement in retrofit projects. Selection rests on space, vertical clearance, and desired heat delivery, with both models supporting long-term resilience in demanding environments.





