Tube heaters are effective in many applications. A heat load is determined to best suit each specific situation. How the heater is used or controlled will also have an impact on the size of the tube heater. The way the heating system will be used must also be taken into consideration. For a space heating application, a properly sized heater(s) will keep the building at a comfortable setting and give you the best seasonal efficiency.
For spot heating or heating on demand, the number of heaters may need to be increased to heat up the space more rapidly from a cold condition. In this situation, it is a good idea to add more heat load to the building. This would be achieved by increasing the number of heaters and not the size of heaters. These heaters should also be individually controlled with thermostats. In this case, the extra heat is required to bring the building up to temperature quickly from the cold state. Once this is achieved, one or some heaters will cycle on and off to maintain the temperature. This strategy will also maintain seasonal efficiency.
Tube heater selection should also take into account installation height and clearance to combustibles. One example where this would be an issue is a vehicle service shop. A hoist may lift a vehicle inside the clearance to combustible area. This issue can be avoided by using a heater with lower btu or shields to reduce the clearance area.
In all cases, we offer the best advice for your specific application. We have a wealth of information and 25 years of experience to assist you with your heating needs.