10 Best Propane Heaters 2025 in the United States

The Mr. Heater 18,000 BTU Big Buddy Pro Series Portable Propane Heater is a robust option for those needing efficient heating in spaces up to 450 square feet. With a BTU rating ranging from 4,000 to 18,000, it offers adjustable heat settings (low, medium, high) to maintain a comfortable temperature. This heater is suitable for both indoor and outdoor use, making it versatile. It is clean-burning and highly efficient, ensuring minimal fuel waste.

Safety is a significant strength of this model, featuring auto shut-off mechanisms if tipped over, when the pilot light goes out, or if it detects low oxygen levels, providing peace of mind during use. Portability is another advantage, as it’s designed to be easily moved around. However, the heater can shut off when used at altitudes above 7,000 feet, which might be a limitation for users in high-altitude regions.

Additionally, due to recent changes, some models no longer include a fan, which might affect heat distribution for those versions. The heater connects to standard propane tanks, but it’s important to note that unauthorized accessories are prohibited and could void the warranty. This heater is particularly beneficial for users who require a reliable, portable heating solution with strong safety features.

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.