HVAC Brain has a wide variety of unit heaters available for purchase today! These unit heaters can be used to heat smaller spaces, and most do not require a duct system to work efficiently. Some of the unit heaters available include steam heaters, electric heaters, and gas heaters. Unit heaters in this section also come in various sizes and configurations, ensuring that you'll be able to find the perfect unit heater for your needs. Shop our selection of unit heaters below or contact us to find out more.