High-quality heaters for the garage can be purchased at Home Depot or Amazon.com. Home Depot carries several highly rated garage heaters, including the Fahrenheat 5,000-watt heater and the Cadet 4,000-watt heater. Garage heaters featured on Amazon.com include the King 5,700-watt electric heater and the Modine natural gas heater.
The Fahrenheat garage heater warms up to 500 feet of space and emits heat through forced air. Customized heat settings are controlled by a dial. Heating temperatures are between 45 and 135 degrees Fahrenheit. One drawback of the Fahrenheat is it has no automatic shut-off feature. With 6-feet of electrical, cord the Cadet heater offers users versatility of placement. This rugged heater warms large and hard-to-reach spaces. It also includes a built-in fan for cooler air without heat. The Cadet automatically shuts off the heat once the normal operating temperature is exceeded.
The King heater is manufactured in the United States and is designed to provide heat to large garages or workshops. Constructed of durable metal materials, the King heater features a flow through design that moves air efficiently. Its built-in thermostat has three heat modes and a fan option. The Modine heater is a natural gas garage heater that has good user reviews. Key features are its compact design and quiet operation.