10 Best Garage Heaters Propane 2025 in the United States

The Mr. Heater Portable Buddy Heater MH9BX is a solid choice for anyone needing a propane heater, whether for a garage, workshop, or outdoor space. With a versatile BTU rating of 4,000 to 9,000, it effectively warms areas up to 225 square feet, making it suitable for small to medium-sized spaces. Its radiant heating technology offers a cozy warmth that feels similar to natural sunlight, directly heating objects and people instead of just the air, which can be a significant advantage in chilly environments.

Portability is one of its strong suits, featuring a fold-down handle and the ability to connect to both 1 lb. and larger 20 lb. propane tanks. This flexibility means you can easily move it around or set it up wherever you need heat. Additionally, the Piezo igniter allows for quick, reliable starting without the need for matches, which is convenient for users who prefer a straightforward operation.

Safety is another highlight; the heater is equipped with a tip-over switch that ensures it turns off if accidentally knocked over, and it also includes a low-oxygen safety shut-off system. This makes it a safer option for indoor use, although it’s crucial to maintain proper ventilation when using propane heaters indoors. Despite its strengths, there are a few limitations. While it’s designed for indoor use, users should be aware of the need for ventilation to avoid carbon monoxide buildup. It also has a relatively short burn time, with only 6 hours on the low setting, which may require frequent refueling if used extensively. Additionally, the unit's design is fairly basic, which might not appeal to those looking for a more aesthetically pleasing option.

The Mr. Heater Portable Buddy Heater MH9BX serves as an efficient, reliable, and portable heating solution that emphasizes safety and ease of use, making it ideal for garage enthusiasts, campers, or anyone in need of reliable warmth in smaller spaces.

The Mr. Heater MH540T is a portable propane heater designed for outdoor use, making it ideal for sporting events, camping, and other outdoor activities. With a BTU rating of up to 45,000, it offers adjustable heating options at high, medium, and low settings, allowing users to customize warmth based on their needs. The 540° radiant coverage ensures that heat is distributed widely, effectively warming both people and objects nearby.

One of the standout features is its safety protection; the tip-over shut-off mechanism is crucial for preventing accidents, especially in outdoor environments where stability can be an issue. Additionally, the secure connection to the propane tank helps prevent leaks, adding an extra layer of safety.

Portability is another major advantage, with a lightweight design (weighing only 5.5 pounds) making it easy to transport. The heater also offers dual ignition options, including a push-button TE valve and a manual lighting option, which enhances usability. This heater is designed exclusively for outdoor use, which limits its applicability in enclosed spaces like garages unless they have proper ventilation. The heating coverage is capped at approximately 100 square feet, which may not be sufficient for larger areas. While it heats effectively, it may struggle in very cold conditions or in drafty spaces.

The Mr. Heater 30,000 BTU Vent Free Radiant Propane Heater is designed to provide effective warmth in spaces up to 750 sq. ft., making it a suitable choice for cold rooms, additions, sunrooms, and cabins. Its radiant heating technology mimics the sun's warmth, efficiently heating objects and people rather than just the air. One of the standout features is its fuel efficiency, consuming only 1.389 lbs of propane per hour, which translates to a runtime of nearly 14.5 hours with a standard 20 lb cylinder. This is great for extended use without frequent refueling.

Safety is also a strong point, as the heater includes an automatic low-oxygen shut-off system that adds a layer of protection by turning off the gas if oxygen levels drop too low. The built-in thermostat and battery-powered electronic ignition make it user-friendly, allowing easy temperature adjustments and quick startup.

However, there are a few drawbacks to consider. While the heating coverage is adequate for many spaces, it's on the lower end for larger areas, as it only effectively covers up to 750 sq. ft., which might not be sufficient for bigger garages or open layouts. Additionally, as a vent-free model, it may not be suitable for all indoor environments, particularly those with limited ventilation, due to potential gas build-up. Finally, while it's portable in the sense that it can be wall-mounted, it is still a heavier option at 30.1 pounds, which may affect where and how easily it can be relocated.