10 Best Propane Heaters For Indoor Use 2025 in the United States

The Rinnai EX17DTP is a wall-mounted propane heater designed for indoor use, offering a solid 17,000 BTU heating capacity that can comfortably warm up to 1600 square feet, making it suitable for bedrooms, home offices, or garages. Its energy-efficient radiant burner and advanced modulating technology help maintain a consistent temperature, eliminating cold spots without wasting fuel.

Safety is well addressed with a cool-to-the-touch cabinet and self-diagnostic electronics, which is reassuring for families with children. It also features a programmable thermostat that can integrate with Wi-Fi systems, giving you control over your home's warmth with ease. The heater requires proper direct venting since it’s a direct vent wall furnace, so installation should follow ventilation guidelines to ensure safe indoor air quality.

While it’s wall-mounted and compact, it weighs 67 pounds, so it’s not portable or easy to move around once installed. The quiet operation and energy-saving design are significant advantages, making this heater a smart choice for homeowners looking to efficiently heat indoor spaces safely and quietly with modern thermostat controls, as long as they can accommodate the venting and wall-mounted setup.

The Rinnai EX11DTP is a wall-mounted indoor propane heater rated at 11,000 BTU, suitable for heating spaces up to around 1,600 square feet, such as bedrooms, home offices, or study rooms. Its direct vent system ensures safe operation by channeling exhaust outdoors, which is important for indoor propane heating as it reduces indoor air contamination. Safety is a strong point here—the heater features a cool-to-touch exterior and self-diagnostic electronics, making it family-friendly and reliable. The programmable thermostat adds convenience by letting you set and maintain comfortable temperatures, and the option to connect with Wi-Fi enhances control if you prefer smart home integration.

This heater is energy efficient, designed to adjust fuel usage based on heating needs, which helps save on fuel costs while keeping your space warm quietly. However, being wall-mounted and weighing 53 pounds, it isn’t very portable; this model is best for a fixed heating solution rather than moving between rooms. Also, as a direct vent unit, it requires proper installation with ventilation to the outside, which might limit placement flexibility and could involve additional setup costs.

If you want a safe, efficient, and space-saving propane heater for indoor use and don’t mind professional installation, the Rinnai EX11DTP is a strong choice. It is less suited if you need a portable heater or a simple plug-and-play option.

The Mr. Heater MHVFDF30BFT is a strong choice for indoor propane heating, especially in rooms or cabins up to 1,000 sq. ft. It delivers a solid 30,000 BTU rating, which means it can quickly and efficiently warm a medium-sized space. One of its standout features is the dual fuel capability, allowing you to use either propane or natural gas, offering flexibility depending on your fuel availability. Safety is clearly a priority here, with an automatic low oxygen shut-off system and a fail-safe fuel selector to prevent accidents, which is reassuring for indoor use.

Because it’s vent-free, you don’t have to worry about complicated venting installations, but you should ensure your space is well-ventilated per general safety guidelines for vent-free heaters. The heater includes a thermostat for easy temperature control, so you can maintain your comfort without constant adjustments. Ignition is quick and user-friendly thanks to the battery-powered electronic spark, and the included battery means it’s ready to go out of the box.

It’s also designed with both wall-mounting and floor-standing options, adding to its portability and ease of placement. However, at 37 pounds, it’s not the lightest heater around, so moving it frequently might require some effort. Its clean, modern look fits nicely in most indoor spaces. For anyone looking for a reliable, versatile, and safe indoor propane heater with good control features, this model is a practical choice, especially if you want something vent-free with dual fuel options.