Indoor cooling and heating system in a building is a combined system of heating, ventilation and air conditioning usually abbreviated as a HVAC system. Heating, ventilation and air conditioning system are required to be combined for heating and cooling in a building. The HVAC system is installed in buildings to ensure that there is thermal comfort in a building as well as the air quality is appropriate. Residential, commercial and industrial buildings can make use of HVAC system for heating and cooling purposes in apartments, hotels, single-family homes, and hospitals. Air quality and cooling is enhance by ventilating a building where outdoor air replaces indoor air. Ventilation ensures that there is cooling of the room as well as removal of odors, smoke, dust, heat, airborne bacteria and other gases that may accumulate in a room.
Air conditioning system are installed in rooms to enhance humidity and cooling of a building. Most air conditioning systems are installed in buildings where the other ventilations are sealed since in case they are open they disrupt the system. This is because open windows prevent proper working of the air conditioning system hence indoor air quality is compromised. In the heat exchange section, fresh air from outside gets in through a vent creating a positive air pressure. The vent also enhances removal of heat from the building using various processes including radiation, conduction and convention.
Furnaces are systems used in the process of high temperature heating where the heat needed to fuel it may be from combustion of fuel or by electricity. The furnace is used to supply heat into a living space through an intermediary distribution system in a building. Heating washing and bathing water can also be done by the use of a furnace other than just heating a room. The furnace works in a way such that there is a passive air circulation system. Warm air rises up to heat a room while cooler air sinks for reheating in a passive air circulation system. Fans are used in the modern furnaces to help pull cooler air from a building, reheats the air and releases it warming the building.
HVAC systems in the air heating and air conditioning are beneficial for use in a building. The systems are energy efficient utilizing minimal amount of energy hence saving on the amount of power used and consequently lower cost of electricity. The HVAC systems also ensures that there is appropriate temperature that is comfortable in a building. It is also ensuring that the air in a building is cleaner free from odors, harmful gases and also harmful air-borne microorganisms. Repair of HVAC is important when they are damaged to avoid getting new ones at all times. Specialized professionals are needed for HVAC repair since they have proper tools and equipment.