10 Best Garage Heaters 2025 in the United States

The TEMPWARE Electric Garage Heater is an effective option for those looking to heat a large garage or workshop. With a high heating capacity of 34,120 BTUs, it can comfortably heat an area up to 1,500 square feet. It operates on a 240-volt power source and requires hardwired installation, meaning you will need an electrician for safe setup. This unit is designed as a fan-forced heater, which helps distribute warm air evenly throughout the space.

It does not come with a power cord, which might be a minor inconvenience for some users. However, its sturdy, heavy-duty steel construction ensures durability and longevity. Additionally, it includes safety features such as overheat protection and an ETL certification, which is reassuring for safe usage. The built-in thermostat and ECO mode allow for customizable temperature control between 45°F to 95°F, making it energy efficient.

The adjustable louvers and mounting angle enable you to direct warmth where needed. It also includes a 12-hour timer and a remote control, adding convenience. While the hardwired installation can be seen as a drawback, the heater's robust features and safety certifications make it a reliable choice for maintaining a comfortable working environment in your garage or workshop.

The Mr. Heater F260550 Big Maxx MHU50NG is a robust natural gas unit heater designed to efficiently heat spaces up to 1,250 square feet, making it a strong choice for garages, workshops, or large indoor areas. With a heating capacity of 50,000 BTUs per hour, it delivers significant warmth, ideal for colder climates or uninsulated spaces. One of its standout features is the powered exhaust which allows for flexible venting options, whether vertically or horizontally, enhancing installation versatility.

Safety is prioritized with a high-temperature safety shut-off switch, which adds a layer of protection, especially in enclosed spaces. The heater can also be converted from natural gas to liquid propane, offering greater fuel flexibility. Additionally, it comes with a conversion kit and mounting brackets, making installation easier for homeowners.

There are some considerations to keep in mind. The heater requires a minimum clearance of 8 feet from the floor, which might limit placement options in lower-ceiling garages. Its weight, at 66 pounds, may also complicate installation if you're doing it alone. While this heater is primarily designed for indoor use, it’s important to ensure proper ventilation to avoid safety hazards. The Mr. Heater F260550 is a compelling option for those seeking a powerful and reliable heating solution for their garage or large indoor spaces, as long as they can accommodate its installation requirements.

The TEMPWARE Electric Garage Heater is a powerful ceiling-mounted option designed to heat large indoor spaces up to 1,250 square feet. It offers strong heating capacity with up to 25,590 BTUs and adjustable power settings between 6,250 and 7,500 watts, allowing you to customize the heat output depending on your needs. The built-in thermostat lets you control temperatures from 45°F to 95°F, making it easier to maintain a comfortable workshop environment. Safety is well covered with overheating protection and ETL certification, so you can trust it to operate securely. The ECO mode and timer function help save energy by adjusting operation based on the room temperature or turning off automatically after a set time, which is great for efficiency.

This heater requires hardwired installation by a qualified electrician, as it doesn't come with a plug-in cord. This might add to upfront setup costs and reduce portability compared to plug-in models. The durable steel build and adjustable louvers for directing airflow add to its practical design for garage or workshop use. This heater is well suited for users seeking robust, reliable heating for larger indoor spaces and who are comfortable with professional installation. Those preferring a simpler plug-and-play unit or needing portability may want to consider other options.