10 Best Garage Heaters 2025 in the United States

The Dr Infrared Heater DR-238 is a versatile heater ideal for both indoor and outdoor spaces, making it a great choice for garages, patios, and even restaurants. With a heating capacity of up to 1500W and three power settings, it provides clean, instant, and odorless infrared heat, which can be particularly appealing for those who dislike the smell of traditional heating methods. Its IP55 rating means it’s weatherproof, allowing for outdoor use without worry. It also comes with a remote control for convenient operation and includes wall and ceiling mounting brackets for easy installation, enhancing its portability.

A notable strength of the DR-238 is its efficient design, featuring a high-level mirror aluminum reflector that maximizes heat distribution, ensuring that even larger areas can benefit from warmth. Additionally, the heater is lightweight at just 8 pounds, making it easy to mount or move as needed.

There are a few drawbacks to consider. The heater requires assembly and might not be suitable for very large garage spaces if you need an intense heat output. While the ability to mount it on walls or ceilings is a plus, some users may find the 120V power source limits its effectiveness in larger, open areas without adequate electrical supply. Furthermore, the warranty is limited to one year, which may not provide peace of mind for long-term use.

The Modine Hot Dawg is a powerful gas-fired unit heater with a strong heating capacity of 125,000 BTUs, capable of comfortably warming spaces up to around 3,100 square feet—making it well suited for garage or workshop use. It runs on natural gas, which can be cost-effective if you have gas access, and features an 80% thermal efficiency rating, helping to save on fuel costs. The heater is designed to be installed just one inch below the ceiling, saving floor space and providing even heat distribution.

Its cabinet-style build is durable and meant for both indoor and outdoor use, though it’s primarily aimed at garages or similar areas. The unit operates quietly with minimal vibration, which is a nice touch if noise is a concern. It draws makeup air from inside the room, so good ventilation is important to maintain safe air quality. It does not include a built-in thermostat control, so an external thermostat will likely be needed for temperature regulation. At 125 pounds, it is intended as a fixed floor-mounted installation rather than a portable heater.

The Modine Hot Dawg offers a robust and efficient heating solution for those needing reliable, strong heat in a garage or workshop, but it requires attention to proper ventilation and external temperature control to ensure safe and effective operation.

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.