Our engineering office is providing HVAC studies with the main objective to make buildings more energy efficient, sustainable and cost effective to operate. Extending from initial planning to construction and installation, Limcen specialist will offer you a complete project management.

HVAC (heating, ventilation and air-conditioning) is the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and decent indoor air quality.


Heaters are appliances whose objective is to generate warmth for the building. This is usually done via central heating. A boiler, furnace, or heat pump are involved in such a system to heat water, steam, or air in a central home location such as a furnace room, or a mechanical room in a large building. The heat can be transferred by convection (i.e. ducting), conduction (i.e. under floor heating), or radiation (i.e. fireplace).


Ventilation is the process of changing or replacing air in any space to control temperature or remove any combination of moisture, odors, smoke, heat, dust, airborne bacteria, or carbon dioxide, and to refresh oxygen. Ventilation includes both the circulation of air within the building as well as exchange of air with the outside. Basically the outside fresh air is drawn into the system by a vent into the indoor section, creating positive air pressure. The percentage of return air made up of fresh air can usually be manipulated by adjusting the opening of this vent. Typical fresh air intake is about 10%. Ventilation is one of the most important factors for maintaining acceptable indoor air quality in buildings. Methods for ventilating a building may be divided into mechanical (forced) and natural types.


An air conditioning system, or a standalone air conditioner, provides cooling and humidity control for all or section of a building. Central, air conditioning systems (or package systems) with a combined outdoor condenser/evaporator units are often installed in new residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. An alternative to central systems is the use of independent indoor and outdoor coils and split systems. In such systems the evaporator coil is connected to a remote condenser unit using refrigerant piping between an indoor and outdoor unit instead of ducting air directly from the outdoor unit.