10 Best Pellet Stove For Garage 2025 in the United States

The Comfortbilt HP22 pellet stove is designed to heat spaces up to 2,800 square feet, making it a strong choice for larger garages or workshop areas. It has a 55-pound hopper, allowing it to hold a good amount of pellet fuel, which reduces how often you need to refill it. With a 70% efficiency rating, it uses fuel fairly well, though some energy is lost during heating.

The stove requires proper ventilation since it is not ventless, so installation might need some extra work to ensure safe exhaust of gases. Its control features include an auto ignition and a programmable thermostat, helping to keep the temperature steady without much manual effort. Maintenance is made easier thanks to a removable ash pan and easy-to-clean design.

Weighing 285 pounds, the stove is quite heavy, so moving or installing it might require assistance. If you want a solid, EPA-certified pellet stove for a garage that balances good heating power and decent fuel capacity with manageable maintenance, the Comfortbilt HP22 is a reliable pick—just be ready to handle the ventilation setup and the stove’s weight.

The Castle 41278 Serenity Pellet Stove is designed to comfortably heat spaces up to 1,500 square feet, making it suitable for garages or similarly sized areas. Its 40-pound hopper allows for several hours of burn time before needing a refill, which is convenient for extended use. The stove offers multiple operating modes—manual, thermostat, weekly scheduling, and an eco mode that cycles the stove on and off to maintain temperature efficiently. This flexibility helps you customize heating to your needs and save energy.

Installation-wise, it’s a freestanding model with vent-free operation, which can simplify setup but may require attention to ventilation depending on your garage layout. The stove runs quietly and uses about 77 watts of power, which is relatively low. It features an easy-to-clean design with no hidden chambers or tubes, reducing maintenance hassle. Efficiency is over 75%, which is good for pellet stoves and even qualifies for a federal biomass tax credit.

On the downside, the stove weighs 186 pounds, so moving it might need some effort, and it requires scheduling a truck delivery, adding a step before you get started. The 1-year limited warranty is modest compared to some competitors. Controls include a remote, making adjustments easy without going to the unit. This pellet stove successfully balances strong heating performance and user-friendly features, making it a practical choice for heating a garage, especially if you want programmable settings and easy upkeep.

The Comfortbilt HP42-Alpine Modern Pellet Stove is a solid choice for heating large spaces like a garage, offering an impressive heat output of up to 42,370 BTU per hour. This makes it well-suited for areas that require significant warmth during colder months. One of its standout features is its high efficiency rating of 86.1%, which means it not only heats effectively but also conserves fuel, making it an economical option in the long run. The 120lbs hopper is another advantage, allowing for fewer refills and ensuring continuous heat without constant attention.

Maintenance is made easy with a removable ash pan, simplifying the cleaning process and helping to keep the stove in good working condition. The large hopper fill lid also provides convenience for loading pellets, which is a bonus for users who may want to minimize hassle during operation.

The stove may not always meet expectations in very cold climates, especially in larger spaces. Its weight of 313 pounds also means it's not portable, which could be a consideration if you plan to move it around.