In an HVAC system, heaters are appliances whose purpose is to generate heat (i.e. warmth) for the building. This can be done via central heating. Such a system contains a boiler, furnace, or heat pump to heat water, steam, or air in a central location such as a furnace room in a home, or a mechanical room in a large building. The heat can be transferred by convection, conduction, or radiation.
During heat load calculations the total amount of heat generated inside the room by all sources is calculated by carrying out the survey of the different rooms of the building, hall, airport or whatever the application.
Based on the heat load calculations, the HVAC designer recommends the type of the air-conditioning system suitable for the application and total size of the system. This helps in avoiding installing the oversized system that can lead to high initial and running costs and also avoids an under-sized system that could lead to under-cooling of the rooms of the building.
- Usually, in an HVAC system, heaters exist for many types of fuel, including solid fuels, liquids, and gases. Another type of heat source is electricity, generally heating ribbons composed of high resistance wire (see Nichrome). This principle is also used for baseboard heaters and portable heaters. Electrical heaters are often used as a backup or supplemental heat for heat pump systems.
From the 1980s, manufacturers of HVAC equipment have been making an effort to make the systems they manufacture more efficient. This was originally driven by rising energy costs and has more recently been driven by increased awareness of environmental issues.
It is very clear that HVAC systems are an essential part in buildings, nowadays. As a customer, one just needs to consider the best HVAC unit from a good manufacturer to make the proper Air conditioning and ventilation inside your building.The future of using HVAC is bright.HVAC systems will incorporate more of Smart technology, will make alternate forms of energy available and reduce harmful effects on the environment, thereby shaping a brighter future for the next generation.