10 Best Wall Mounted Gas Heaters 2025 in the United States

The Mr. Heater F299730 is a powerful propane wall heater designed to provide up to 30,000 BTUs of heat, which is suitable for warming spaces up to 1,000 sq. ft. This makes it ideal for cold rooms, additions, sunrooms, cabins, and garages. One of its standout features is the blue flame burner that ensures even convection heating. It's also designed for reliable performance up to elevations of 4,500 ft., making it a dependable option in various environments.

The heater comes with a built-in thermostat for precise temperature control and a battery-powered ignition system that simplifies startup. Safety is a priority with this model, as it includes an automatic low oxygen shut-off system (ODS) and holds a CSA certification, providing peace of mind during use. The heater offers versatile mounting options, allowing for both wall and free-standing installation, and includes the necessary hardware for both setups.

However, there are a few downsides to consider. Despite its powerful heating capacity, its fuel consumption rate is 1.389 lbs of propane per hour, which may lead to higher fuel costs over time. Additionally, while the heater is well-suited for indoor use, it must be used in a well-ventilated area to ensure safety. The design is functional but may not appeal to those looking for a more aesthetically pleasing unit. In summary, the Mr. Heater F299730 offers robust heating capabilities and safety features, making it a solid choice for effectively warming large indoor spaces, albeit with some considerations regarding fuel consumption and ventilation needs.

The Rinnai EX22DTWN Direct Vent Wall Furnace is a solid choice for those seeking an efficient and reliable indoor gas heater. With a heating capacity of 21,500 BTU, it effectively warms a variety of spaces while maintaining consistent temperatures. This model utilizes advanced modulating technology, which reduces cold spots, ensuring a comfortable environment throughout your home.

One of the standout features is its energy efficiency. The heater is designed to minimize fuel consumption by adjusting heat output based on your specific needs, which can lead to noticeable savings on energy bills. The programmable thermostat further enhances this efficiency, allowing you to set and maintain your preferred temperature easily.

Safety is another key strength of the Rinnai EX22DTWN. It boasts a cool-to-the-touch cabinet, making it safe for homes with children, and its self-diagnostic electronics help ensure reliable operation. These features provide peace of mind, especially for families.

The compact design of the heater is a significant advantage too, particularly for urban dwellers or those with limited space. It can fit seamlessly into various room layouts without becoming an eyesore. Additionally, the unit operates noiselessly, providing a quieter alternative to some traditional heating systems.

While the heater is efficient, its initial purchase price might be higher compared to some less advanced models. Also, as it requires professional installation due to its direct venting system, this could add to the overall cost. Potential users should ensure that their home’s ventilation system is compatible with this type of heater, as this could limit installation options.

The Rinnai EX22DTWN is well-suited for those looking for an energy-efficient, safe, and stylish wall-mounted gas heater. Its smart technology and compact design make it a practical choice for many homeowners.

The Mr. Heater MHVFBF30NGT is a versatile and powerful wall-mounted gas heater designed for indoor use in spaces up to 1,000 sq. ft. It boasts a substantial heating capacity of 30,000 BTUs, ensuring it can effectively warm cold rooms and sun-rooms. One of its standout features is the energy-efficient blue flame burner, which provides consistent and even heat while consuming minimal natural gas, making it cost-effective to run. Additionally, the heater comes equipped with a thermostat control, allowing for precise temperature adjustments to maintain a comfortable environment without manual intervention.

Safety is a priority with this model, as it includes a low oxygen shut-off system (ODS), which ensures the heater turns off if oxygen levels drop too low, making it a secure option for your home. The ignition system is user-friendly, featuring an electric ignition that is powered by a free battery included with the unit, ensuring easy and reliable start-ups. Aesthetically, it has a modern white design that can be wall-mounted or placed on the floor with the provided hardware, offering flexibility in installation.

It is worth noting that this model is vent-free, which means it does not require an external vent but may not be suitable for all indoor environments due to potential moisture buildup. In conclusion, the Mr. Heater MHVFBF30NGT is a reliable and efficient choice for those needing a powerful heating solution with modern safety features and flexible installation options.