The RSI greenhouse and building heating system is designed to deliver direct heat and allow for the temperature to be maintained over long periods of time. The ceiling-mounted design allows the heater to be used to maximize airflow. The design of the bracket also will allow the heater to be directed in any direction needed or wanted. In addition to this functionality, the heater can also pivot 360 degrees allowing for easy re-direction of heat. Adjustable louvers also help to determine the intensity of the heat flow. The design is ideal for greenhouses, sheds, garages, or workshops. In addition, the RSI heating system is designed to save money by working more efficiently than other heaters in the market. The copper brazed uses a lower watt density and this with the steel-sheathed tubular heating element saves money by using less energy to produce heat. There is also an automatic fan control and any thermal cut-out automatically shuts off the heater in the event of overheating and reactivates when temperatures return to normal. Comes with a mounting bracket and the necessary hardware for installation.