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 4000 to 18000 BTU Portable LP Gas Heater is a versatile option for those seeking warmth in various settings, both indoors and outdoors. It boasts adjustable heat levels, allowing users to choose from 4,000, 9,000, or 18,000 BTUs per hour, effectively heating up to 450 square feet. This feature makes it suitable for camping, picnics, porches, sheds, and more.

One of the standout strengths of this heater is its portability, weighing only 15 pounds, making it easy to transport. Additionally, it has safety features like automatic shut-off in case of tipping, and low-oxygen shutoff, which are essential for safe indoor use.

The heater uses a simple control knob for ignition, which, along with its piezo sparking mechanism, ensures easy operation. However, it requires additional equipment, such as a hose and filter, for connection to larger propane tanks, which may not be included in the purchase.