The specialized collection (Damatajhiz) (the first and most reliable authority in the country in the field of building facilities equipment and all air conditioning devices), offers you all kinds of sand filters and hundreds of other products, guaranteeing the originality of the product, valid warranty, and reasonable price. In addition, if you have any questions about choosing and comparing the brands of this product, you can get free advice from the heating equipment experts.

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

To increase the overall efficiency of the boiler, the heat released from the combustion process must be properly transferred into the fluid used. Any heat that is not transferred to the fluid is lost through the body of the boiler or the flue gas. The temperature of the gas inside the chimney is a good indicator of the heat transfer process and therefore efficiency. There are practical limitations to the low flue temperature. Its temperature will be higher than the fluid used in the boiler. In boilers that do not do distillation, the temperature should be high enough that water vapor does not distill in the exhaust chimney and clean the heat transfer surface in the distillation that causes corrosion. Condensing boilers that use natural gas are made and designed with accessories that are resistant to corrosion. Also, their chimney temperature can be less than . degrees Celsius. Trapping heat distillation increases efficiency by more than %.

Engine room boilers are high-pressure tanks designed to heat water or generate steam that can be used to heat the environment or to heat the building consuming hot water. In the heating of most commercial complexes, the source of heat for the engine room boiler are burners that work by burning natural gas. Diesel burners or fuel oil (rarely) can also be used. In some heating installations, the use of steam is preferred. Such as: absorption cooling systems, kitchens, laundries, disinfectants and steam-powered equipment.

The pressure difference between the combustion chamber of the boiler and the ventilator (also called the exhaust chimney) creates a suction that carries the products of combustion along with the boiler and directs it to the chimney. The natural suction of boilers depends on the natural buoyancy of hot gases to remove combustion products through the aerator and direct fresh air into the combustion chamber. Mechanical suction of engine room boilers includes compressed air, where the air is forced into the combustion chamber by a fan or blower to maintain positive pressure. Induction suction, where the air is drawn through the combustion chamber by a fan or blower to maintain negative pressure.