10 Best 240 V Garage Heaters 2025 in the United States

The TEMPWARE Electric Garage Heater offers a powerful heating capacity of 34,120 BTUs, making it suitable for large areas up to 1,500 square feet, ideal for a garage, workshop, or greenhouse. With 10,000 watts of power, it can handle substantial heating needs effectively. The adjustable angle and louvers allow for directed heating, enhancing its functionality.

It includes a thermostat with a range between 45°F to 95°F and an ECO mode for energy-efficient operation, automatically adjusting based on ambient temperature. The 12-hour timer adds convenience and helps save on energy bills. Safety features like overheat protection and ETL certification ensure reliable use. Its sturdy steel construction promises durability and longevity.

This heater is hardwired, which means it requires professional installation, ensuring safety compliance with national and local codes. However, it does not come with a power cord, which could be an inconvenience for some users. The need for professional installation and the lack of a power cord might be seen as drawbacks. If you’re looking for a high-capacity, energy-efficient heater with robust safety features for a larger space, the TEMPWARE Electric Garage Heater is a viable option.

The TEMPWARE Electric Garage Heater is a solid choice for heating large indoor spaces like garages, workshops, or greenhouses up to about 1,250 square feet. It offers a strong heating capacity of up to 25,590 BTUs with a maximum wattage of 7,500 watts, which is quite powerful for its class. The heater features adjustable louvers and mounting angles, allowing you to direct warm air where it’s needed most. The built-in thermostat lets you set temperatures between 45°F and 95°F, giving good control over comfort levels.

Energy-wise, it includes an ECO mode and a 12-hour timer, which help reduce electricity use by adjusting operation based on the room’s temperature. Safety is well covered with overheat protection and ETL certification, ensuring the unit meets safety standards. The heater is designed for ceiling mounting and must be hardwired by a professional electrician, which means installation is less convenient if you’re looking for a simple plug-and-play option. It does not come with a power cord, so keep that in mind. As a fan-forced heater, it will produce some operational sound, which should be moderate but might be noticeable in quiet settings.

This heater is best suited for those needing powerful, energy-efficient, and safe heating in a fixed indoor space, especially if you prefer a ceiling-mounted unit to save floor space.