10 Best Propane Heaters 2025 in the United States

The Mr. Heater MH9BX is a portable propane heater that offers a BTU rating ranging from 4,000 to 9,000, making it suitable for heating spaces up to 225 square feet. This makes it a good choice for small outdoor areas. One of its key strengths is its portability, featuring a fold-down handle and swivel-out regulator, which makes it easy to transport and set up.

It runs on propane tanks (not included) and can operate for up to 5.6 hours on the minimum BTU setting, which allows for extended use without frequent refueling. Safety is a notable feature of this heater, with an auto shut-off function that activates if the unit is tipped over, if the pilot light goes out, or if low oxygen levels are detected. This makes it a safer option for outdoor use.

However, it's important to note that the heater may shut off if used at altitudes over 7,000 feet, which could be a limitation for users in high-altitude locations. Additionally, the use of unauthorized accessories or attachments is prohibited and can void the warranty, which is something users should be mindful of. This heater does not require batteries and comes with a 1-year limited warranty. The construction of the heater includes steel, plastic, and nickel, enhancing its durability. Despite its strengths, it is designed for outdoor use only, limiting its versatility.

In summary, the Mr. Heater MH9BX is a reliable and efficient option for those seeking a portable heater for outdoor spaces, with strong safety features and good fuel efficiency, but it may not be suitable for high-altitude use or indoor applications.

The Mr. Heater Portable Buddy Heater MH9BX is a versatile propane heater designed to provide efficient heating for small to medium spaces, up to 225 square feet. With an adjustable BTU rating of 4,000 to 9,000, it offers flexibility in heating intensity, making it suitable for various environments such as campsites, workshops, patios, and indoor spaces like bedrooms or home offices. At 8.53 pounds, its fold-down handle adds to its portability, allowing easy transport and setup in different locations.

Safety is a strong point for this heater, featuring a reliable tip-over safety switch and a low-oxygen shut-off system, ensuring safe operation even if the unit is accidentally knocked over or used in enclosed spaces. The Piezo igniter provides quick and match-free ignition, which is convenient and time-saving. Fuel efficiency is respectable, with the heater burning just 0.044 gallons per hour at the lowest setting, allowing for up to 6 hours of continuous use on a small propane cylinder.

One downside is that it may require additional accessories, like an optional hose and filter, to connect to larger propane tanks, which could be an added expense. Additionally, while the heater is rated for indoor use, proper ventilation is crucial to ensure safety. Users will appreciate the convenience and reliability of this heater, although they should be mindful of the limited heating coverage and the need for appropriate fuel source management.

The Mr. Heater F215100 MH4B Little Buddy propane heater is a compact and efficient option, delivering 3,800 BTUs which is suitable for small spaces up to 95 sq. ft. It's particularly useful for environments like tents or small rooms, operating well up to elevations of 7,000 feet.

Its portability is a significant advantage, weighing only 1 pound and equipped with simple on/off buttons, making it easy to use and transport. The heater runs for approximately 5.6 hours on a 1-pound propane cylinder, which is a decent runtime for its size. Safety is a top priority with features like an automatic low oxygen shut-off system and tip-over protection, offering peace of mind during use indoors or in enclosed spaces.

The heater operates quietly and without odor, enhancing its comfort level for users. However, it's important to note that this heater is not designed for use with motorized vehicles or unauthorized accessories. Users should also consider that while the heating angle and coverage are efficient for small spaces, it may not be adequate for larger areas. Additionally, the absence of a built-in ignition mechanism means users will need a separate tool to light the heater. Despite these minor drawbacks, its strong safety features and portability make it an excellent choice for emergency heat and various outdoor activities.