10 Best Garage Heaters 2025 in the United States

The KING KB2412-1-B2-ECO is a powerful electric garage heater delivering 12,500 watts of heating capacity, making it suitable for medium to large garages. It operates on a 240V power source and can be mounted on the wall or ceiling, saving floor space and fitting well in typical garage setups. Its energy-efficient ECO2S design automatically adjusts heat output to use the lowest wattage necessary, helping reduce electricity costs.

The unit comes with a remote control and a wall holder, along with a thermostat and timer, allowing easy temperature settings without needing to approach the heater. Safety features include patented Smart Limit Protection and a built-in fan delay to prevent overheating and ensure even heat distribution. The heater’s durable build, featuring a high mass steel fin heat exchanger and permanently lubricated motor, promises long-lasting performance with low maintenance.

Since it requires a dedicated 240-volt electrical supply, installation might require a professional electrician if your garage lacks this setup. Additionally, as it is designed for indoor use and is wall-mounted, it is not portable, so placement decisions should be made carefully during installation. This heater offers an efficient, smart, and relatively quiet option for warming garage spaces, especially for users seeking remote control and energy savings while considering power requirements and fixed mounting.

The Dr Infrared Heater DR-268 is a versatile electric infrared heater designed to warm small to medium spaces, like garages, greenhouses, or sheds, covering around 150 to 200 square feet. It uses radiant heat, which warms objects and people directly rather than just heating the air, making it efficient especially in areas prone to heat loss. It offers two power settings (1000W and 1500W), allowing some control over heating intensity. This model stands out for its built-in digital thermostat and temperature sensor probe, making it easy to set and maintain your desired temperature from 30°F up to 120°F. The heater is water-resistant (IPX5 rating), so it can be used safely in damp environments like greenhouses or garages.

Its lightweight design and multiple mounting options (wall, ceiling, or hanging) add flexibility for different spaces, though it does require assembly. Safety is well-considered, with overheat protection and ETL certification to assure quality and reliability. However, the heating capacity is best suited for smaller areas, so it may not be ideal if you need to heat a large garage. Also, since it’s electric, it needs a nearby power outlet and may increase electricity usage.

The digital display and remote control features enhance convenience, but some users may find the size (about 35 inches deep) a bit bulky for very tight spaces. This heater is a solid choice if you want efficient, direct infrared heat with precise temperature control and safety features, particularly in moderately sized garages or similar spaces.

The Mr. Heater F260560 Big Maxx MHU80NG is a solid choice for anyone looking to heat a garage or large indoor space, capable of delivering a strong heating capacity of 80,000 BTUs and covering an area of up to 2,667 square feet. Its natural gas power source is convenient for those with existing gas lines, and it comes with a conversion kit for liquid propane, enhancing its flexibility.

One of the standout features is its powered exhaust system, which allows for both vertical and horizontal venting. This versatility in installation means it can be adapted to various garage layouts. The heater also includes a spark ignition and a self-diagnostic control module, which contribute to its reliability and ease of use. Safety is prioritized with features like a high-temperature safety shut-off, making it suitable for long-term operation.

The heater does require some assembly and proper clearance from the floor, which might not be ideal for every garage setup. Additionally, the thermostat is not included, so you would need to purchase that separately to control the temperature effectively. Weighing in at 88 pounds, it’s not the most portable option, and if you’re looking for something easy to move around, this might not be the best fit. If you want a powerful heater and have access to natural gas, the Mr. Heater Big Maxx offers reliable performance, but be prepared for installation considerations and potential additional costs for a thermostat.