10 Best Radiant Heaters For Large Rooms 2025 in the United States

The Dr Infrared Heater Portable Space Heater is a solid choice for heating large rooms. With a heating capacity of 5200 BTUs, it is effective in warming spaces up to 576 square feet. The dual heating system, which combines infrared quartz tubes and PTC, enhances its efficiency, providing up to 60% more heat compared to other heaters. This model operates on a standard 120V electric power source, drawing 12.5 amps and 1500 watts of power.

Safety is a significant strength of this heater. It includes both tip-over and overheat protection features, ensuring safer operation in various settings, including homes with children or pets. The heater also boasts an electronic thermostat with a wide range of 50 to 85 degrees Fahrenheit to cater to different comfort levels. The thermostat control and 12-hour automatic shut-off timer add to its convenience. Portability is another advantage, thanks to its caster wheels and relatively lightweight design at 19 pounds. You can easily move it from room to room as needed.

The inclusion of a remote control adds to user comfort, allowing adjustments from a distance. Noise level is minimal, with the high-pressure low-noise blower operating at about 39 dB, making it one of the quieter options available. However, there are a few minor drawbacks. While the 72-inch power cord provides some flexibility, it might be limiting in larger rooms without nearby outlets. Additionally, the heater requires batteries for the remote control, which means an additional expense and maintenance. Despite these small issues, the Dr Infrared Heater's combination of strong heating performance, comprehensive safety features, and user-friendly controls makes it a compelling option for those in need of efficient and portable heating for large rooms.

The Dr. Infrared Heater Portable Space Heater with Humidifier is a powerful option for heating large rooms. With a heating capacity of around 5200 BTU and dual heating systems combining Infrared Quartz tube and PTC, it ensures efficient and consistent warmth. The 1500-watt power makes it suitable for spaces up to 400 sq ft, ideal for living rooms, offices, and bedrooms. The built-in humidifier is a nice bonus, adding moisture to dry winter air, which can enhance comfort during colder months.

For safety, it features tip-over protection and overheat protection along with a 12-hour automatic shut-off timer, providing peace of mind during usage. Portability is another strong point; it’s compact, cabinet-style design and relatively light weight (23 pounds) make it easy to move around as needed. Noise level is minimal, ensuring a quiet environment suitable for bedrooms or study areas. The thermostat control allows you to set temperatures between 50 to 85 degrees Fahrenheit, catering to various heating preferences.

However, it does have some drawbacks. The heater requires two AAA batteries for the remote control, which adds to its upkeep. Despite its powerful heating capabilities, it might not be the best fit for rooms larger than 400 sq ft or homes with higher heating demands. Additionally, while the humidifier feature is beneficial, it might not be necessary for all users. This Dr. Infrared Heater is a versatile and efficient choice for medium to large rooms, balancing powerful heating with safety and convenience features.

The Heat Storm Phoenix HS-1500-PHX Infrared Space Heater is designed to be an energy-efficient heating solution for small to medium-sized rooms. It offers a heating capacity of 5200 BTUs, which is suitable for spaces up to 150 square feet primarily, but it can provide secondary heating for areas up to 750 square feet. This makes it a versatile option for various rooms in the home, although it may not be powerful enough as the sole heat source for very large rooms.

The heater operates on electric power, with two modes: 1500 watts and a lower 750-watt setting, allowing for energy-saving operation when full power is not needed. Its safety features include a cool-to-touch grill and overheat protection, ensuring safe usage around kids and pets. The built-in thermostat with an LED display and a remote control adds convenience, allowing users to easily regulate the room temperature.

The heater's compact size and the option to mount it on the wall or place it on the floor enhance its portability and adaptability to different room layouts. At 8 pounds, it's lightweight and easy to move. The heater also has a one-year warranty, which is a standard duration but may not be as extensive as some other options on the market. The Heat Storm Phoenix HS-1500-PHX is a good choice for those needing a flexible heating solution for smaller spaces, though it may not be ideal as the main heater for very large rooms.