10 Best Wall Mounted Gas Heaters 2026 in the United States

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 Rinnai EX38CTN Space Heater Wall Furnace is a solid choice for those needing a powerful and efficient heating solution. With a heating capacity of 38,400 BTU, it can comfortably heat large spaces up to 3,840 square feet, making it suitable for homes, apartments, and even commercial settings. It boasts energy-efficient features such as a seven-stage modulating gas valve and a variable speed inducer motor, which help in maintaining consistent and cost-effective heating.

The electronic spark ignition and electronic thermostat, which ranges from 60°F to 80°F, offer precise control over the heating process. Additionally, its direct vent design ensures safe and efficient operation by expelling combustion gases directly outside. Safety is another strong point with this furnace, featuring child lock and self-diagnostic electronics that provide auto shutdown codes and automatic restarts in case of ignition or combustion failure. These features ensure peace of mind, especially in homes with children.

The design includes timer settings for added convenience and a relatively compact size that can be wall-mounted, saving floor space. However, it's worth noting that this model has been discontinued, and potential buyers might need to look at the new model, EX38DTN, for updated features and support. The heater's weight of 88 pounds means it requires proper installation support, and assembly is needed.

The Rinnai EX38DTWN is a wall-mounted natural gas heater designed for indoor use, offering a powerful heating capacity of 38,400 BTU that can comfortably warm up to about 1,600 square feet. Its direct vent system helps maintain safe indoor air quality by venting combustion gases outside, which is a great feature for homes concerned about ventilation. One of the heater’s standout points is its energy efficiency; it uses modulating technology to adjust heat output to exactly what’s needed, helping reduce fuel use and potentially lowering heating costs.

The built-in programmable thermostat adds convenience, allowing you to set temperatures that match your daily routine, and it even supports Wi-Fi integration for smart control. Safety-wise, the heater has a cool-to-the-touch cabinet and self-diagnostic electronics, which are important features for families and anyone wanting peace of mind. Its compact size (about 12.6" by 26.4") and sleek white design make it suitable for modern homes without taking up much space.

On the downside, the unit is fairly heavy at 108 pounds, so installation likely requires professional help. While it’s quiet in operation, it runs on natural gas only, so it may not suit homes without gas lines. Also, it’s mainly intended for indoor spaces like bedrooms or home offices rather than large open areas. For those seeking a reliable, efficient heater with smart controls and strong safety features for a medium-sized indoor area, the Rinnai EX38DTWN is a solid choice.