In commercial complexes, the boiler is very different in summer and winter, night and day, working days and weekends. Using a boiler can not apply this load difference well. When the heat generated by the boiler at the lowest ignition rate exceeds the heat required by the building, the boiler cycle will be interrupted. Starting and interrupting the cycle in the boiler is not efficient at all because, in each cycle, a pre-combustion discharge and a post-combustion discharge are performed to direct the heat out of the boiler. Also in the case of boilers that do not perform the adjustment operation, when the combustion efficiency is at its best, the cycle process does not allow the boiler to operate in the second boiler and the ignition rate is constant.

Je confirme que toutes les operations sous mentionnées ont étés réalisés avec succés. On vous félicite pour la professionnalité et le savoir faire que l’ing. Tarek Ibrahim a montré Durant son séjour à Tunis”.English translation: "I confirm that all the operations mentioned in summers have made successfully. We congratulate you on the professionalism and expertise that Eng. Tarek Ibrahim showed During his stay in Tunis

Eng. Shamel, I wanted to thank you and CATEC team as well for taking time from your busy schedule to support and help Americana meat KSA on all utilities projects (steam boilers, thermal oil heaters, etc). I kNow some of the work wasn’t part of your normal responsibilities, but your assistance was invaluable in helping my company get everything done in a very timely manner. Your expertise and enthusiasm were both appreciated during a time which can be stressful for all concerned! We sincerely appreciate your efforts and thank all CATEC team

Parallel controls use separate motors to regulate fuel flow and airflow, enabling each motor to be tuned throughout the boiler ignition range. During installation, to points are usually drawn to create a curve of airflow corresponding to the fuel flow. The air-fuel ratio can be varied along the ignition range to prepare the optimal ratio in different ignition conditions. Also with the use of electronic dampers, this method of control is very reproducible.

In commercial complexes, natural gas is mostly used as fuel for engine room boilers because it is usually easily accessible, clean, and more economical than diesel and electricity. Some engine boilers are designed to use more than one type of fuel (usually natural gas and diesel). Dual-burner boilers provide extra gas for fuel outages. It also allows the consumer to use petroleum fuel (diesel) when the amount of natural gas reaches a peak. When the amount of natural gas is higher than other fuels, it is possible to save on fuel costs by using cheaper fuel and limiting the use of natural gas.