10 Best Portable Propane Heaters 2025 in the United States

The Mr. Heater Big Buddy Pro Series is a portable propane heater that delivers between 4,000 and 18,000 BTUs, making it powerful enough to warm up spaces up to about 450 square feet. This range of heat settings (low, medium, and high) allows you to adjust the warmth to your comfort level, which is handy whether you're in a small garage or a larger room. It runs on propane and connects to a tank (not included), so you'll want to consider fuel availability and consumption depending on how long you plan to use it.

One of the biggest advantages of this heater is its versatility—it’s approved for both indoor and outdoor use, which means you can use it in your home, office, patio, or garage. It’s designed to be clean-burning and almost 100% efficient, which helps reduce wasted fuel and keeps the air cleaner. On safety, it includes several important features: it automatically shuts off if tipped over, if the pilot light goes out, or if it detects low oxygen, which adds peace of mind when using it indoors.

Portability is good for this model; it weighs about 11 pounds and has a pedestal design that’s easy to place where you need it. However, it requires 4 D batteries for ignition, so you’ll need to keep those handy. Note that at high altitudes (above 7,000 feet), the heater may shut off, which could be a limitation if you live in mountainous areas. Some models no longer include a fan due to import tariff changes, which means the heat distribution might be less even compared to fan-equipped models. Also, using unauthorized accessories can void the warranty and be unsafe, so it’s important to stick to official parts. Since it uses propane tanks, fuel consumption will depend on tank size and heat settings, so running times can vary.

This heater is a reliable, portable heat source with good safety features for both indoor and outdoor use. It is especially useful for people who want flexible heat settings and easy setup, but it is important to keep in mind the possible performance limits at high altitudes and the absence of a fan in some models.

The Mr. Heater Portable Buddy Heater MH9BX is a versatile and powerful option for those in need of portable heat. With a BTU rating adjustable between 4,000 and 9,000, it can comfortably heat spaces up to 225 sq. ft., making it suitable for various settings like campers, workshops, job sites, and patios. One of its standout features is its advanced infrared technology, which delivers direct, sun-like warmth to objects and people, ensuring efficient heating.

The heater is designed with portability in mind, featuring a fold-down handle and a compact size of 7.7 inches in depth, 13.4 inches in width, and 15 inches in height, with a weight of 8.53 pounds. This makes it easy to transport and set up wherever needed. Safety is a top priority with this heater. It includes an improved tip-over safety switch that activates if the unit is shaken, bounced, or tipped. Additionally, a low-oxygen safety shut-off system ensures that the heater will turn off if oxygen levels fall too low, providing peace of mind. The ignition type is a reliable Piezo igniter, which allows for quick and safe ignition without the need for matches or lighters. This feature adds to the ease of use, as you only need to press a button to start heating.

In terms of fuel consumption, the heater is quite efficient. It can operate for up to 6 hours on the low 4,000 BTU setting and 3 hours on the high 9,000 BTU setting. However, it does require a propane cylinder, which means you’ll need to keep an eye on your fuel levels. A minor drawback is the heater's reliance on propane, which might not be as convenient for everyone, especially in areas where propane is less accessible. Additionally, while it’s effective for small to medium-sized spaces, it may not be the best choice for larger areas. The Mr. Heater Portable Buddy Heater MH9BX is a strong contender in the portable propane heater category due to its powerful heating capabilities, impressive safety features, and ease of use, making it a reliable choice for a variety of indoor and outdoor settings.

The Mr. Heater MH540T is a strong choice for anyone needing a reliable portable propane heater for outdoor activities like camping, hunting, or tailgating. It offers three adjustable heat levels (30,000 to 45,000 BTUs), letting you control the warmth depending on your needs. Its 540° radiant coverage with a swivel bracket ensures heat spreads broadly, warming both people and nearby objects effectively within about 100 square feet. This makes it well-suited for small to medium outdoor spaces.

Weighing just 5.5 pounds and featuring a tank-top design, it’s highly portable and easy to set up on a propane tank without extra assembly. Starting the heater is simple thanks to its push-button ignition, with a manual match-lit option as backup. Safety is well covered with a tip-over shut-off that automatically turns the heater off if it falls, helping prevent accidents.

The heater is designed strictly for outdoor use due to its flame-based radiant heating and propane fuel, so it’s not suitable for indoor spaces. The adjustable heat settings offer some control over propane consumption, and the secure leak-free connection adds peace of mind during use. The MH540T provides powerful, adjustable heat with solid safety features and easy operation, making it a practical and dependable option for outdoor events or spaces without electricity.